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time frequency device

time frequency device, Total:500 items.

In the international standard classification, time frequency device involves: Interface and interconnection equipment, Radiocommunications, Telecommunication systems, Measurement of time, velocity, acceleration, angular velocity, Television and radio broadcasting, Horology, Audio, video and audiovisual engineering, Vocabularies, Metrology and measurement in general, Transformers. Reactors, Electronic tubes, Electronic display devices, Welding, brazing and soldering, Electrical engineering in general, Semiconductor devices, Electronic components in general, Electrical accessories, Electricity. Magnetism. Electrical and magnetic measurements, Electromagnetic compatibility (EMC), Special measuring equipment for use in telecommunications, Character sets and information coding, Applications of information technology, Telecommunications in general, Optoelectronics. Laser equipment, Characteristics and design of machines, apparatus, equipment, Graphic technology, Protection against crime, Acoustics and acoustic measurements, Information technology (IT) in general, Aircraft and space vehicles in general, Industrial furnaces, Telecommunication terminal equipment, IT terminal and other peripheral equipment, Medical equipment, Power transmission and distribution networks, Microprocessor systems, Office machines, Nuclear energy engineering, Electromechanical components for electronic and telecommunications equipment, Alarm and warning systems, Installations in buildings, Domestic, commercial and industrial heating appliances, Industrial automation systems, Fibre optic communications, Internal combustion engines for road vehicles, Sports equipment and facilities, Pumps, Fluid storage devices, Piezoelectric and dielectric devices, Technical drawings, Noise with respect to human beings.

Military Standard of the People's Republic of China-General Armament Department, time frequency device

• GJB 5618-2006 General specification for the time base and frequency standard equipment of space target reconnaissance and surveillance network
• GJB 3597-1999 Frequency Agility Time Test Method
• GJB 9209-2017 Satellite two-way time and frequency transmission requirements
• GJB 9212-2017 General specifications for taming time and frequency standards
• GJB 3597-1999(XG1-2015) Frequency Agility Time Test Method Modification Sheet 1-2015
• GJB/J 3073-1997 Global Positioning System (GPS) time and frequency receiver calibration procedures
• GJB/J 3073-1997(XG1-2015) Global Positioning System (GPS) Time and Frequency Receiver Calibration Regulations Modification Sheet 1-2015
• GJB 2398-1995 Test method for technical parameters of instantaneous frequency measurement and direction finding equipment
• GJB 3309-1998 Radar signal generation and time reference subsystem performance test method frequency source main performance

National Metrological Verification Regulations of the People's Republic of China, time frequency device

• JJG 2007-2015 Time-Frequency Measuring Instrument
• JJG 2007-1987 Verification System of Time and Frequency Measuring Instruments
• JJG 2007-2007 Time and Frequency Measuring Instruments

International Telecommunication Union (ITU), time frequency device

• ITU-R TF.768-6 SPANISH-2003 Standard frequencies and time signals Frecuencias patr髇 y se馻les horarias
• ITU-R TF.768-6-2003 Standard frequencies and time signals
• ITU-R TF.768-7-2011 Standard frequencies and time signals
• ITU-R TF.768-7 FRENCH-2011 Standard frequencies and time signals
• ITU-R TF.768-7 SPANISH-2011 Standard frequencies and time signals
• ITU-R TF.768-6 FRENCH-2003 Standard frequencies and time signals Fr閝uences 閠alon et signaux horaires
• ITU-R TF.1552 SPANISH-2002 Time scales for use by standard-frequency and time-signal services Escalas de tiempo a utilizar por los servicios de frecuencias patr髇 y se馻les horarias
• ITU-R TF.374-6-2014 Precise frequency and time-signal transmissions
• ITU-R RESOLUCION 28-1 SPANISH-2000 Standard-frequency and time-signal emissions
• ITU-R TF.374-5-1999 Precise Frequency and Time-Signal Transmissions
• ITU-R TF.460-6-2002 Standard-frequency and time-signal emissions
• ITU-R TF.SERIES SUPP 1-1998 Time Signals and Frequency Standards Emissions
• ITU-R VOL 2000 TF SERIES-2000 Time Signals and Frequency Standards Emissions
• ITU-R RESOLUTION 28-1-2000 Standard-frequency and time-signal emissions
• ITU-R TF.460-6 FRENCH-2002 Standard-frequency and time-signal emissions
• ITU-R TF.460-6 SPANISH-2002 Standard-frequency and time-signal emissions
• ITU-R TF.686-2 FRENCH-2002 Glossary and definitions of time and frequency terms
• ITU-R TF.686-2 SPANISH-2002 Glossary and definitions of time and frequency terms
• ITU-R RESOLUTION 28-1 ARABIC-2000 Standard-frequency and time-signal emissions
• ITU-R RESOLUTION 28-1 CHINESE-2000 Standard-frequency and time-signal emissions
• ITU-R RESOLUTION 28-1 FRENCH-2000 Standard-frequency and time-signal emissions
• ITU-R TF.486-2 FRENCH-1998 USE OF UTC FREQUENCY AS REFERENCE IN STANDARD FREQUENCY AND TIME SIGNALS EMISSIONS
• ITU-R TF.486-2 SPANISH-1998 USE OF UTC FREQUENCY AS REFERENCE IN STANDARD FREQUENCY AND TIME SIGNALS EMISSIONS
• ITU-R TF.485-2-1990 (WITHDRAWN) Use of Time Scales in the Field of Standard-Frequency and Time Services - Section 7B - Specifications for the Standard-Frequency and Time-Signal Services
• ITU-R TF.686-2013 Glossary and definitions of time and frequency terms
• ITU-R TF.686-3-2002 Glossary and definitions of time and frequency terms
• ITU-R TF.374-5 FRENCH-1999 Precise Frequency and Time-Signal Transmissions
• ITU-R TF.374-5 SPANISH-1999 Precise Frequency and Time-Signal Transmissions
• ITU-R QUESTION 152-2/7-1997 Standard frequencies and time signals from satellites
• ITU-R TF.374-2014 Precise frequency and time-signal transmissions
• ITU-R TF.1552-2002 Time scales for use by standard-frequency and time-signal services
• ITU-R RUEGO 94 SPANISH-1995
• ITU-R TF.686-2-2002 Glossary and definitions of time and frequency terms
• ITU-R QUESTION 152-27-1997 Standard frequencies and time signals from satellites
• ITU-R TF.538-4-2017 Measures for random instabilities in frequency and time (phase)
• ITU-R TF.538-3-1994 Measures for Random Instabilities in Frequency and Time (Phase)
• ITU-R TF.1011-1-1997 Systems Techniques and Services for Time and Frequency Transfer
• ITU-R TF.538-3 FRENCH-1994 Measures for Random Instabilities in Frequency and Time (Phase)
• ITU-R TF.538-3 SPANISH-1994 MEASURES FOR RANDOM INSTABILITIES IN FREQUENCY AND TIME (PHASE)
• ITU-R TF.582-2 FRENCH-1998 TIME AND FREQUENCY REFERENCE SIGNAL DISSEMINATION AND COORDINATION USING SATELLITE METHODS DIFFUSION ET COORDINATION DE SIGNAUX DE R蒄蒖ENCE DE TEMPS ET DE FR蒕UENCE PAR SATELLITE
• ITU-R OPINION 94-1995 Time and Frequency Transfer Using Digital Telecommunication Networks
• ITU-R QUESTION 207-2/7-2001 Time and frequency transfer using digital communication links
• ITU-R VOEU 94 FRENCH-1995
• ITU-R TF.685-1990 (WITHDRAWN) International Synchronization of UTC Time Scales - Section 7B - Specifications for the Standard-Frequency and Time-Signal Services
• ITU-R TF.1011-1 FRENCH-1997 Systems, Techniques and Services for Time and Frequency Transfer
• ITU-R TF.1011-1 SPANISH-1997 Systems, Techniques and Services for Time and Frequency Transfer
• ITU-R QUESTION 250/7-2009 Application and improvement of two-way satellite time and frequency transfer (TWSTFT)
• ITU-R QUESTION 207-27-2001 Time and frequency transfer using digital communication links
• ITU-R QUESTION 244/7-2006 Interference between standard frequency and time signal services operating between 20 and 90 kHz
• ITU-R QUESTION 2457-2006 Interference to the standard frequency and time signal service in the low-frequency band caused by noise from electrical sources
• ITU-R TF.2487-0,ITU-R TF.2487-2021 Protection criteria for systems in the standard frequency and time signal services
• ITU-R QUESTION 2447-2006 Interference between standard frequency and time signal services operating between 20 and 90 kHz
• ITU-R OPINION 93-1995 Use of Communications Satellites for a Service of Two-Way Time and Frequency Transfer Question ITU-R 201/7
• ITU-R TF.457-2 FRENCH-1997 USE OF THE MODIFIED JULIAN DATE BY THE STANDARD-FREQUENCY AND TIME-SIGNAL SERVICES
• ITU-T G.8265.1/Y.1365.1-2014 Precision time protocol telecom profile for frequency synchronization
• ITU-T G.8265.1/Y.1365.1-2021 Precision time protocol telecom profile for frequency synchronization
• ITU-T Y.1365.1-2014 Precision time protocol telecom profile for frequency synchronization (Study Group 15)
• ITU-T G.8265.1-2014 Precision time protocol telecom profile for frequency synchronization (Study Group 15)
• ITU-R QUESTION 249/7-2009 Time and frequency information from “enhancedLOng Range Aid to Navigation (eLORAN)
• ITU-R QUESTION 2497-2009 Time and frequency information from “enhanced” LOng Range Aid to Navigation (eLORAN)
• ITU-R BT.1377 FRENCH-1998 Labelling of Video and Audio Apparatus Throughput (Processing) Delay
• ITU-R BT.1377 SPANISH-1998 LABELLING OF VIDEO AND AUDIO APPARATUS THROUGHPUT (PROCESSING) DELAY
• ITU-T G.8263-2012 Timing characteristics of packet-based equipment clocks (Study Group 15)
• ITU-R TF.457-2-1997 Use of the Modified Julian Date by the Standard-Frequency and Time-Signal Services
• ITU-R TF.486-2-1998 Use of UTYC Frequency as Reference in Standard Requency and Time Signals Emissions
• ITU-R TF.582-2-1998 Time and Frequency Reference Signal Dissemination and Coordination Using Satellite Methods
• ITU-R TF.1153-3-2010 The operational use of two-way satellite time and frequency transfer employing pseudorandom noise codes
• ITU-T Y.1365.1-2010 Precision time protocol telecom profile for frequency synchronization Study Group 15
• ITU-R TF.1153-3 FRENCH-2010 The operational use of two-way satellite time and frequency transfer employing pseudorandom noise codes
• ITU-R TF.1153-3 SPANISH-2010 The operational use of two-way satellite time and frequency transfer employing pseudorandom noise codes
• ITU-R QUESTION 7-6/5-2007 Characteristics of equipment for the land mobile service between 25 and 6 000 MHz
• ITU-R TF.1552 FRENCH-2002 Time scales for use by standard-frequency and time-signal services Echelles de temps destin閑s ?阾re utilis閑s par les services des fr閝uences 閠alon et des signaux horaires
• ITU-T E.261 FRENCH-1993 DEVICES FOR MEASURING AND RECORDING CALL DURATIONS
• ITU-T E.261 SPANISH-1993 DEVICES FOR MEASURING AND RECORDING CALL DURATIONS
• ITU-T G.8265.1/Y.1365.1 CORR 1-2016 Precision time protocol telecom profile for frequency synchronization; Corrigendum 1
• ITU-R TF.376-1-1966 (WITHDRAWN) Avoidance of External Interference with Emissions of the Standard-Frequency Service in the Bands Allocated to That Service - Section 7B - Specifications for the Standard-Frequency and Time-Signal Services
• ITU-R TF.537-1978 (WITHDRAWN) Reduction of Mutual Interference between Emissions of the Standard-Frequency and Time-Signal Service on the Allocated Frequencies in Bands 6 and 7 - Section 7C - Systems for Dissemination and Comparison
• ITU-R RUEGO 98 SPANISH-1997
• ITU-R VOEU 98 FRENCH-1997
• ITU-R TF.1153-4-2015 The operational use of two-way satellite time and frequency transfer employing pseudorandom noise codes
• ITU-R TF.1153-2-2003 The operational use of two-way satellite time and frequency transfer employing PN codes Question ITU-R 201/7
• ITU-R P.452-16-2015 Prediction procedure for the evaluation of interference between stations on the surface of the Earth at frequencies above about 0.1 GHz
• ITU-R INFORME M.319-7 SPANISH-1990 Characteristics of equipment and principles governing the assignment of frequency channels between 25 and 100 MHz for land mobile services
• ITU-R SM.1896-2011 Frequency ranges for global or regional harmonization of short-range devices
• ITU-R SM.1896 SPANISH-2011 Frequency ranges for global or regional harmonization of short-range devices
• ITU-T G.8265.1 AMD 1-2011 Precision time protocol telecom profile for frequency synchronization Amendment 1 Study Group 15
• ITU-R PN.452-6-1994 Prediction Procedure for the Evaluation of Microwave Interference between Stations on the Surface of the Earth at Frequencies Above About 0.7 GHz
• ITU-R P.452-12-2005 Prediction procedure for the evaluation of microwave interference between stations on the surface of the Earth at frequencies above about 0.7 GHz Question ITU-R 208/3
• ITU-T R.38 B-1988 STANDARDIZATION OF FMVFT SYSTEMS FOR A MODULATION RATE OF 200 BAUDS WITH CHANNELS SPACED AT 360 Hz USABLE ON LONG INTERCONTINENTAL BEARER CIRCUITS GENERALLY USED WITH A 3-kHz SPACING
• ITU-T R.38 B FRENCH-1988 Standardization of FMVFT systems for a modulation rate of 200 bauds with channels spaced at 360 Hz usable on long intercontinental bearer circuits generally used with a 3-kHz spacing
• ITU-T R.38 B SPANISH-1988 STANDARDIZATION OF FMVFT SYSTEMS FOR A MODULATION RATE OF 200 BAUDS WITH CHANNELS SPACED AT 360 Hz USABLE ON LONG INTERCONTINENTAL BEARER CIRCUITS GENERALLY USED WITH A 3-kHz SPACING

ITU-R - International Telecommunication Union/ITU Radiocommunication Sector, time frequency device

• ITU-R TF.768-1-1994 Standard Frequencies and Time Signals
• ITU-R TF.768-1992 Standard Frequencies and Time Signals
• ITU-R TF.768-2-1995 Standard Frequencies and Time Signals
• ITU-R TF.768-4-2001 Standard Frequencies and Time Signals
• ITU-R TF.768-3-1997 Standard Frequencies and Time Signals
• ITU-R TF.768-5-2002 Standard frequencies and time signals
• ITU-R TF.374-3-1974 Standard-Frequency and Time-Signal Emissions - Section 7B - Specifications for the Standard-Frequency and Time-Signal Services
• ITU-R TF.460-4-1986 Standard-Frequency and Time-Signal Emissions - Section 7B - Specifications for the Standard-Frequency and Time-Signal Services
• RÉSOLUTION 28-1 FRENCH-2000 Standard-frequency and time-signal emissions
• VOL 2000 TF SERIES-2000 Time Signals and Frequency Standards Emissions
• RESOLUTION 28-1-2000 Standard-frequency and time-signal emissions
• ITU-R TF.374-4-1998 Standard-Frequency and Time-Signal Emissions
• ITU-R TF.460-5-1997 Standard-Frequency and Time-Signal Emissions
• QUESTION 152-2/7-1997 Standard frequencies and time signals from satellites
• ITU-R TF.457-1-1974 Use of the Modified Julian Date by the Standard-Frequency and Time-Signal Services - Section 7B - Specifications for the Standard-Frequency and Time-Signal Services
• ITU-R TF.536-1978 Time-Scale Notations - Section 7B - Specifications for the Standard-Frequency and Time-Signal Services
• ITU-R TF.1011-1994 Systems@ Techniques and Services for Time and Frequency Transfer
• OPINION 94-1995 Time and Frequency Transfer Using Digital Telecommunication Networks
• ITU-R TF.538-2-1992 Frequency and Time (Phase) Instability Measures Section 7D - Characterization of Sources and Time Scales Formation
• QUESTION 207-2/7-2001 Time and frequency transfer using digital communication links
• QUESTION 245/7-2006 Interference to the standard frequency and time signal service in the low-frequency band caused by noise from electrical sources
• QUESTION 244/7-2006 Interference between standard frequency and time signal services operating between 20 and 90 kHz
• ITU-R TF.458-2-1990 International Comparisons of Atomic Time Scales - Section 7B - Specifications for the Standard-Frequency and Time-Signal Services
• QUESTION 249/7-2009 Time and frequency information from “enhanced” LOng Range Aid to Navigation (eLORAN)
• ITU-R TF.486-1-1978 Reference of Precisely Controlled Frequency Generators and Emissions to the International Atomic Time Scale - Section 7B - Specifications for the Standard-Frequency and Time-Signal Services
• ITU-R TF.1153-1-1997 Operational Use of Two-Way Satellite Time and Frequency Transfer Employing PN Codes
• ITU-R TF.1153-1995 Operational Use of Two-Way Satellite Time and Frequency Transfer Employing PN Codes
• ITU-R TF.535-1-1982 Use of the Term UTC - Section 7B - Specifications for the Standard-Frequency and Time-Signal Services
• ITU-R TF.538-1-1990 Frequency and Phase Stability Measures - Section 7D - Characterization of Sources and Time Scales Formation
• OPINION 98-1997 Spectrum Requirements of Meteorological Aids in the Frequency Range from 400.15 to 406 MHz
• OPINION 93-1995 Use of Communications Satellites for a Service of Two-Way Time and Frequency Transfer (Question ITU-R 201/7)
• ITU-R SM.1896-1-2018 Frequency ranges for global or regional harmonization of short-range devices
• ITU-R TF.582-1-1990 Time and Frequency Reference Signal Dissemination and Coordination Using Satellite Methods - Section 7C - Systems for Dissemination and Comparison

工业和信息化部, time frequency device

• YD/T 3072-2016 Access network equipment testing method PON system carries frequency synchronization and time synchronization
• YD/T 3841-2021 Reference Master Time (PRTC) Equipment Technical Requirements
• YD/T 3993-2021 Reference Master Time (PRTC) Equipment Test Method
• YD/T 4054-2022 Telecom Equipment Precision Time Protocol (PTP) Boundary Clock and Slave Clock Test Methods
• YD/T 3419-2018 Packet Bearer Equipment Precision Time Protocol (PTP) Boundary Clock and Slave Clock Performance Requirements
• YD/T 3552-2019 Determine the average peak specific absorption rate (SAR) in the human body. Wireless communication equipment (30MHz~6GHz). Special requirements for calculating SAR using the finite difference time domain (FDTD) method.
• YD/T 3553-2019 Determining the spatial average peak specific absorption rate (SAR) in the human body Wireless communication equipment (30MHz ~ 6GHz) General requirements for calculating SAR using the finite difference time domain (FDTD) method

RU-GOST R, time frequency device

• GOST 8.515-1984 State system of ensuring the uniformity of measurements. Standard frequency and time signals radiated by specialized radio stations of the State service of time, frequency and the Earth rotation parameters determination. Time code
• GOST 8.567-1999 State system for ensuring the uniformity of measurements. Time and frequency maesurements. Terms and definitions
• GOST 8.129-1999 State system for ensuring the uniformity of measurements. State verification schedule for means measuring time and frequency
• GOST 8.129-1983 State system for ensuring the uniformity of measurements. State primary standard and state verification schedule for means measuring time and frequency
• GOST 8.515-2016 State system of ensuring the uniformity of measurements. Standard frequency and time signals radiated by specialized radio stations of the State service of time, frequency and the Earth rotation parameters determination. Time code
• GOST R 50446-1992 Gas-discharge sign-synthesizing indicators. Method of frequency time measaring characteristics
• GOST 19656.9-1979 Semiconductor microwave varactors and multiplier diodes. Methods of measuring time constant and limiting frequency
• GOST 19656.9-1974 Ultra-high frequency multiplication and parametric semiconductor diodes fixed time and limit frequency measurement methods
• GOST 8.323-2016 State system of ensuring the uniformity of measurements. Standard frequency and time signals radiated by specialized radio stations of the State service of time, frequency and the Earth rotation parameters determination. Main parameters
• GOST 8.323-1978 State system of ensuring the unity of measurements. Standard time and frequency signals radiated by specialized radio stations of the state time service. Main parameters
• GOST 8.567-2014 State system for ensuring the uniformity of measurements. Time and frequency measurements. Terms and definitions
• GOST R 51856-2001 Electromagnetic compatibility of technical equipment. Short range devices operating on frequencies between 3 kHz and 400 GHz. Requirements and test methods
• GOST R ISO/IEC 18046-2009 Automatic identification. Radio frequency identification. Radio frequency identification device performance test methods
• GOST 8.129-2013 State system for ensuring the uniformity of measurements. State verification schedule for means measuring time and frequency
• GOST R 59741-2021 Optics and photonics. Lasers and laser-related equipment. Test methods for laser radiation power, energy and temporal characteristics
• GOST R 54485-2011 Electromagnetic compatibility of technical equipment. Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz. Part 2-1. Mains communications equipment and systems operating in the range of frequencies 95 kHz to 148,5
• GOST R 54485-2011(2020) Electromagnetic compatibility of technical equipment. Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz. Part 2-1. Mains communications equipment and systems operating in the range of frequencies 95 kHz to 148,5
• GOST R 8.930-2016 State system for ensuring the uniformity of measurements. Transfer units of time, frequency and time scale national UTC (SU) from the State primary standard. The Russian Federation with the use of the GLONASS system. Fundamentals

CZ-CSN, time frequency device

• CSN 35 8745-1973 Semiconductor devices. Transistore. Measurement of open-circuit reverse voltage transfer ratio and tinie coefíicient at high frequencies
• CSN 35 8759-1977 Semiconductor devices. Transistors. Methods of measurement of switching times
• CSN EN 60601-2-2-1994 Medical electrical equipment.Part 2:Particular requirements for the safety of high frequency surgical equipment
• CSN 35 8764-1976 Semicoaductor devices. Switching diodes. Measurement o? reverse recovery time.

VN-TCVN, time frequency device

• TCVN 5137-2009 Time and frequency measurements.Terms and definitions

Danish Standards Foundation, time frequency device

• DS/IEC/TS 62644:2012 Professional video storage equipment - Guideline of time code transmission
• DS/ETS 300683:1998 Radio Equipment and Systems (RES) - ElectroMagnetic Compatibility (EMC) standard for Short Range Devices (SRD) operating on frequencies between 9 kHz and 25 GHz
• DS/EN ISO 11554:2008 Optics and photonics - Lasers and laser-related equipment - Test methods for laser beam power, energy and temporal characteristics
• DS/EN IEC 63296-1:2021 Portable multimedia equipment – Determination of battery duration – Part 1: Powered loudspeaker equipment
• DS/I-ETS 300330/A1:1998 Radio Equipment and Systems (RES) - Short Range Devices (SRDs) - Technical characteristics and test methods for radio equipment in the frequency range 9 kHz to 25 MHz and inductive loop systems in the frequency range 9 kHz to 30 MHz
• DS/ETS 300152:1993 Radio Equipment and Systems. Maritime Emergency Position Indicating Radio Beacons (EPIRBs) intended for use on the frequency 1215 MHz or the frequencies 1215 MHz and 243 MHz for homing purposes only. Technical characteristics and methods of measurements
• DS/EN 61300-3-21:1998 Fibre optic interconnection devices and passive components - Basic test and measurement procedures - Part 3-21: Examinations and measurements - Switching time and bounce time
• DS 5101:1986 Emission of narrow-band interference from electrical equipment in the frequency range 0.15 1000MHz
• DS 5102:1986 Emission of broadband interference from electrical equipment in the frequency range 0.15 - 1000 MHz
• DS/EN ISO 26782/AC:2009 Anaesthetic and respiratory equipment - Spirometers intended for the measurement of time forced expired volumes in humans
• DS/EN ISO 26782:2009 Anaesthetic and respiratory equipment - Spirometers intended for the measurement of time forced expired volumes in humans
• DS 5106:1987 Immunity of electrical equipment aginst conducted and radioted signals in the frequency range 150 kHz. 12 Ghz
• DS/IEC/TS 62393:2005 Portable and hand-held multimedia equipment - Mobile computers - Battery run-time measurement

International Electrotechnical Commission (IEC), time frequency device

• IEC TS 62644:2012 Professional video storage equipment - Guideline of time code transmission
• IEC 60268-9:1977 Sound system equipment. Part 9 : Artificial reverberation, time delay and frequency shift equipment
• IEC 62087:2002 Methods of measurement for the power consumption of audio, video and related equipment
• IEC 62087:2008 Methods of measurement for the power consumption of audio, video and related equipment
• IEC 62087:2011 Methods of measurement for the power consumption of audio, video and related equipment
• IEC 62209-1:2016 Measurement procedure for the assessment of specific absorption rate of human exposure to radio frequency fields from hand-held and body-mounted wireless communication devices - Part 1: Devices used n
• IEC 60605-7:1978 Equipment reliability testing. Part 7 : Compliance test plans for failure rate and mean time between failures assuming constant failure rate
• IEC TR 63239:2020 Radio frequency beam wireless power transfer (WPT) for mobile devices
• IEC 60645-3:2020 Electroacoustics - Audiometric equipment - Part 3: Test signals of short duration
• IEC 62803:2016 Transmitting equipment for radiocommunication - Frequency response of optical-to-electric conversion device in high-frequency radio over fibre systems - Measurement method
• IEC 63296-1:2021 Portable multimedia equipment - Determination of battery duration - Part 1: Powered loudspeaker equipment
• IEC 61308:2005 High-frequency dielectric heating installations - Test methods for the determination of power output
• IEC 61308:1994 High-frequency dielectric heating installations - Test methods for the determination of power output
• IEC TS 62462:2007 Ultrasonics - Output test - Guide for the maintenance of ultrasound physiotherapy systems
• IEC TS 62462:2017 Ultrasonics - Output test - Guidance for the maintenance of ultrasound physiotherapy systems
• IEC 60130-8:1976 Connectors for frequencies below 3 MHz. Part 8 : Concentric connectors for audio circuits in radio receivers
• IEC 60130-9:1989 Connectors for frequencies below 3 MHz; part 9: circular connectors for radio and associated sound equipment
• IEC 61491:2002 Electrical equipment of industrial machines - Serial data link for real-time communication between controls and drives

British Standards Institution (BSI), time frequency device

• PD IEC/TS 62644:2012 Professional video storage equipment. Guideline of time code transmission
• BS PD CLC/TR 50627:2015 Study Report on Electromagnetic Interference between Electrical Equipment/Systems in the Frequency Range Below 150 kHz
• PD CLC/TR 50627:2015 Study Report on Electromagnetic Interference between Electrical Equipment/Systems in the Frequency Range Below 150 kHz
• BS ISO/IEC 24770-61:2015 Information technology. Real Time Locating System (RTLS) device performance test methods. Low rate pulse repetition frequency Ultra Wide Band (UWB) air interface
• BS EN IEC 63296-1:2021 Portable multimedia equipment. Determination of battery duration. Powered loudspeaker equipment
• BS ISO/IEC 17629:2014 Information technology. Office equipment. Method for measuring first print out time for digital printing devices
• BS CWA 14172-8:2004 EESSI conformity assessment guidance - Time-stamping authority services and processes
• BS EN ISO 11554:2017 Optics and photonics. Lasers and laser-related equipment. Test methods for laser beam power, energy and temporal characteristics
• BS EN ISO 11554:2009 Optics and photonics. Lasers and laser-related equipment. Test methods for laser beam power, energy and temporal characteristics
• BS EN ISO 11554:2008 Optics and photonics - Lasers and laser-related equipment - Test methods for laser beam power, energy and temporal characteristics
• BS EN 50065-7:2002 Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148.5 kHz - Equipment impedance
• BS 6840-9:1987 Sound system equipment. Methods for specifying and measuring the characteristics of artificial reverberation, time delay and frequency shift equipment
• BS EN ISO 9295:2015 Acoustics. Determination of high-frequency sound power levels emitted by machinery and equipment
• PD IEC TR 63239:2020 Radio frequency beam wireless power transfer (WPT) for mobile devices
• BS EN 61491:1999 Electrical equipment of industrial machines - Serial data link for real-time communication between controls and drives
• BS EN 60512-25-3:2001 Connectors for electronic equipment. Test and measurements. Test 25c. Rise time degradation
• BS EN IEC 60255-181:2019 Measuring relays and protection equipment - Functional requirements for frequency protection
• BS ISO/IEC 24769-62:2015 Information Technology. Real Time Locating System (RTLS) Device Conformance Test Methods. High rate pulse repetition frequency Ultra Wide Band (UWB) air interface
• BS ISO/IEC 24770-62:2015 Information technology. Real-time locating system (RTLS) device performance test methods. High rate pulse repetition frequency Ultra Wide Band (UWB) air interface
• BS ISO/IEC 24769-61:2015 Information Technology. Real Time Locating System (RTLS) Device Conformance Test Methods. Low rate pulse repetition frequency Ultra Wide Band (UWB) air interface
• BS EN 50065-2-2:2003 Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz - Immunity requirements for mains communications equipment and systems operating in the range of frequencies 95 kHz to 148,5 kHz and intended for use in industria
• BS EN 13319:2000(2009) Diving accessories - Depth gauges and combined depth and time measuring devices - Functional and safety requirements, test methods
• BS EN 13319:2000 Diving accessories - Depth gauges and combined depth and time measuring devices - Functional and safety requirements, test methods
• BS EN 60728-4:2008 Cable networks for television signals, sound signals and interactive services - Part 4: Passive wideband equipment for coaxial cable networks
• BS EN 60512-21-1:2010 Connectors for electronic equipment. Tests and measurements. Part 21-1: R.F. resistance tests. Test 21a: R.F. shunt resistance
• BS EN 60603-14:1999 Connectors for frequencies below 3 MHz for use with printed boards. Detail specification for circular connectors for low-frequency audio and video applications such as audio, video and audio-visual equipment
• 12/30260765 DC BS EN 50412-4. Power line communication apparatus and systems used in low-voltage installations in the frequency range 1,6 MHz to 30 MHz. Part 4. Low rate wide band services (LRWBS) operating between 2 MHz and 4 MHz. Channel allocations

United States Navy, time frequency device

• NAVY MIL-T-28816 NOTICE 1-1998 TIME-FREQUENCY STANDARD, DISCIPLINED, AN/URQ-23, GENERAL SPECIFICATION FOR
• NAVY MIL-T-28816 (1)-1975 TIME-FREQUENCY STANDARD, DISCIPLINED, AN/URQ-23, GENERAL SPECIFICATION FOR

National Metrological Technical Specifications of the People's Republic of China, time frequency device

• JJF 1180-2007 Glossary and Definition of Time and Frequency Metrology
• JJF 1206-2018 Time and Frequency Standard Remote Calibration Specification
• JJF 1308-1990 Cs-Ⅲ cesium atomic beam time-frequency reference operation technical specification

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, time frequency device

• GB/T 7402-1987 Time and frequency dissemination via television signals
• GB 5080.7-1986 The verification test plan of failure rate and mean time between failures under the assumption of constant failure rate in equipment reliability test
• GB/T 5080.7-1986 Equipment reliability testing--Compliance test plans for failure rate and mean time between failures assuming constant failure rate
• GB/T 12060.9-2011 Sound system equipment.Part 9:Methods of measurement for artificial reverberation,time delay and frequency shift equipment
• GB/T 30147-2013 Technical requirements for real time intelligent video analysis devices in surveillance system
• GB/T 14809-2000 High-frequency dielectric heating installations-Test methods of the determination of power output
• GB/T 14373-1993 Specifications of 46 channels TDM equipment operating on 4 line telephone-type circuit
• GB/T 15157.14-2007 Connectors for frequencies below 3 MHz for use with printed boards Part 14: Detail specification for circular connectors for low frequency audio and video applications such as audio, video and audio-visual equipment
• GB/T 18443.7-2010 Testing method of performance for vacuum insulation cryogenic equipment.Part 7:Holding time measurement

IEC - International Electrotechnical Commission, time frequency device

• TS 62644-2012 Professional video storage equipment – Guideline of time code transmission (Edition 1.0)

RO-ASRO, time frequency device

• STAS 9470-1973 ydrofechnics MAXIMUM RAINFALL Intensities, durations, frequencies
• STAS 11071/4-1989 Block diagrams of hierarchy BLOCK DIAGRAM OF HIERARCHY OF MEASURING INSTRUMENTS FOR TIME
• STAS 11237/22-1988 MEDICAL ELECTRICAL IGH FREQUENCY SURGICAL QUIPMENT eneral technical requirements for safety

Institute of Electrical and Electronics Engineers (IEEE), time frequency device

• IEEE 1139-1988 Definitions of physical quantities for fundamental frequency and time metrology
• IEEE Std 1139-1988 IEEE Standard Definitions of Physical Quantities for Fundamental Frequency and Time Metrology
• IEEE 1139-1999 Definitions of physical quantities for fundamental frequency and time metrology - Random instabilities
• IEEE Std C37.106-1987 Guide for abnormal frequency protection for power generating plants
• IEEE Std 1139-1999 IEEE Standard Definitions of Physical Quantities for Fundamental Frequency and Time Metrology-Random Instabilities
• IEEE P1139/D17, November 2022 IEEE Draft Standard Definitions of Physical Quantities for Fundamental Frequency and Time Metrology--Random Instabilities
• IEEE P1139/D18, May 2022 IEEE Draft Standard Definitions of Physical Quantities for Fundamental Frequency and Time Metrology--Random Instabilities
• IEEE 1139-2022 IEEE Standard Definitions of Physical Quantities for Fundamental Frequency and Time Metrology--Random Instabilities
• IEEE Std 1139-2008 IEEE Standard Definitions of Physical Quantities for Fundamental Frequency and Time Metrology--Random Instabilities
• IEEE Std 1139-2022 IEEE Standard Definitions of Physical Quantities for Fundamental Frequency and Time Metrology--Random Instabilities
• IEEE Std Std 1139-2008 IEEE Standard Definitions of Physical Quantities for Fundamental Frequency and Time Metrology--Random Instabilities
• IEEE P1139/D16, November 2021 IEEE Draft Standard Definitions of Physical Quantities for Fundamental Frequency and Time Metrology--Random Instabilities
• IEEE Unapproved Draft Std P1139/D2, May 2008 IEEE Draft Standard for Definitions of Physical Quantities for Fundamental Frequency and Time Metrology - Random Instabilities
• IEEE Std C37.237-2018 IEEE Standard for Requirements for Time Tags Created by Intelligent Electronic Devices--COMTAG
• IEEE No 127 IEEE Standard for Aerospace Equipment Voltage and Frequency Ratings
• SMPTE RP 181:1999 RP 181:1999 - SMPTE Recommended Practice - Audio Sector Time Code and Equipment Type Information for 19-mm Type D-1 Digital Component Recording
• IEEE PC37.237/D1.03, October 2018 IEEE Draft Standard Requirements for Time Tags Created by Intelligent Electronic Devices - COMTAG(TM)
• IEEE PC37.237/D0.7, October 2017 IEEE Draft Standard Requirements for Time Tags Created by Intelligent Electronic Devices - COMTAG(TM)
• IEEE PC37.237/D1.01, May 2018 IEEE Draft Standard Requirements for Time Tags Created by Intelligent Electronic Devices - COMTAG(TM)
• IEEE PC37.237/D0.6, April 2016 IEEE Draft Standard Requirements for Time Tags Created by Intelligent Electronic Devices - COMTAG(TM)
• IEEE PC37.237/D0.8, April 2018 IEEE Draft Standard Requirements for Time Tags Created by Intelligent Electronic Devices - COMTAG(TM)

Korean Agency for Technology and Standards (KATS), time frequency device

• KS C 6043-2002 General rules of high frequency coils and intermediate frequency transformers for electronic equipment
• KS C 6043-1982 General rules of high frequency coils and intermediate frequency transformers for electronic equipment
• KS C 7111-2007 Measurement methods on power consumption for audio, video and multimedia systems and equipment
• KS C IEC 62087:2006 Methods of measurement for the power consumption of audio, video and related equipment
• KS B ISO 11554:2013 Optics and optical instruments ?; Laser and laser-related equipment ?; Test methods for laser beam power, energy and temporal characteristics
• KS B ISO 11554:2003 Optics and optical instruments-Lasers and laser-related equipment-Test methods for laser beam power, energy and temporal characteristics
• KS B ISO 11554:2015 Optics and optical instruments ― Laser and laser-related equipment ― Test methods for laser beam power, energy and temporal characteristics
• KS B ISO 11554-2015(2020) Optics and optical instruments ― Laser and laser-related equipment ― Test methods for laser beam power, energy and temporal characteristics
• KS C IEC TR 63239:2022 Radio frequency beam wireless power transfer(WPT) for mobile devices
• KS I ISO 9295:2019 Acoustics — Determination of high-frequency sound power levels emitted by machinery and equipment
• KS C IEC 61308:2012 High-frequency dielectric heating installations－Test methods for the determination of power output
• KS R ISO 13555-3:2005 Diesel engines-Procedure for checking the dynamic timing of diesel fuel injection equipment-Part 3:Validation of timing measurement devices
• KS R ISO 13555-3:2015 Diesel engines－Procedure for checking the dynamic timing of diesel fuel injection equipment－Part 3：Validation of timing measurement devices
• KS C IEC TS 62393-2016(2021) Portable and hand-held multimedia equipment－Mobile computers－Battery run-time measurement
• KS C IEC 60512-25-3-2004(2009) Connectors for electronic equipment－Tests and measurements－Part 25－3：Test 25c－Rise time degradation
• KS C IEC TS 62393:2016 Portable and hand-held multimedia equipment－Mobile computers－Battery run-time measurement

Group Standards of the People's Republic of China, time frequency device

• T/ZIIC 003-2021 Technical Requirements for Time Synchronization of Time Sensitive Network Devices
• T/CIS 03001.1-2020 Reliability of instrument or equipment--Verification and test method of the mean time between failures of complete machine
• T/HZZK 001-2021 Industrial time sensitive network Technical requirements for network switching equipment at the scene

HU-MSZT, time frequency device

• MSZ 23000/2-1971
• MSZ 23000/1-1971
• MSZ 23000/3-1971
• MSZ 23000/1-1984
• MSZ 4822/2-1972
• MSZ 11451-1959

Professional Standard - Aerospace, time frequency device

• QJ 1195.5A-1997 Equipment repair man-hour cost downtime quota
• QJ 1195.5-1987 842工程

CU-NC, time frequency device

• NC 90-11-01-1986 Metrological Assurance. Time and Frequency Measurements Terms and Definitions
• NC 90-11-02-1988 Metrological Assurance. Time and Frequency Keasuring Means National Transmission Diagram

Professional Standard - Electron, time frequency device

• SJ 378-1973 Measurement of oscillation stability time of reflex klystron
• SJ/T 10163-1991 Critical frquency mesurement methods for electronic equipments
• SJ/Z 9095.6-1987 Methods of measurement for radio equipment used in mobile services--Part 6: Selective calling equipment--Audio frequencies commonly used in tone-signalling systems
• SJ/Z 9124.2-1987 Audio-disk and player - Compatibility between analogue audio disk and reproducing equipment

Professional Standard - Post and Telecommunication, time frequency device

• YD/T 2022-2009 Technical requirements for time synchronization equipment
• YD/T 2550-2013 Test methods of time synchronization equipment
• YD/T 2676-2013 Technical requirements for access networks Supporting frequency and time synchronization in PON system
• YD/T 4445-2023
• YD/T 2476-2013 High power amplifier with up converters for satellite communication earth station equipment technical requirement
• YD/T 4179-2023 30MHz~1GHz Micro-power short-distance radio transmission equipment radio frequency test method
• YD/T 4178-2023 9kHz~30MHz micro-power short-distance radio transmission equipment radio frequency test method
• YD/T 4180-2023 1GHz~40GHz Micropower Short-distance Radio Transmitting Equipment RF Test Method

ES-AENOR, time frequency device

• UNE 20-823-1992 Recommendation for capacitors for inductive heat generating plants oprating at frequencies between 40 and 24000 Hz

国家广播电视总局, time frequency device

• GY/T 348-2021 Specification for precise time synchronization of audio and video equipment in professional broadcast environments

CN-QIYE, time frequency device

• Q/GDW 1919-2013 Technical Specifications for Time Synchronization Based on Digital Synchronization Network Frequency Signals

Association Francaise de Normalisation, time frequency device

• NF C20-327/A1:1990 Equipment reliability testing Part 7:Compliance test plans for failure rate and mean time between failures-assuming constant failure rate Clause 6 - Procedures for design and application of time terminated test plans
• NF C92-505:2014 Methods of measurement for the power consumption of audio, video and related equipment
• NF C92-505:2005 Methods of measurement for the power consumption of audio, video and related equipment.
• NF S31-111*NF EN ISO 9295:2015 Acoustics - Determination of high-frequency sound power levels emitted by machinery and equipment
• NF S10-121:2008 Optics and photonics - Lasers and laser-related equipment - Test methods for laser beam power, energy and temporal characteristics.
• NF S10-121*NF EN ISO 11554:2017 Optics and photonics - Lasers and laser-related equipment- Test methods for laser beam power, energy and temporal characteristics
• NF ETS 300683:1999 Télécommunications - Équipements et systèmes radioélectriques (RES) - Norme de compatibilité électromagnétique (CEM) pour dispositifs à courte portée fonctionnant à des fréquences comprises entre 9 kHz et 25 GHz.
• NF EN 302536:2021 Dispositifs à courte portée (SRD) - Equipements radioélectriques fonctionnant dans la plage de fréquences de 315 kHz à 600 kHz pour les dispositifs implantables pour animaux de très faible puissance (ULP-AID) et périphériques associés - Norme ...
• NF C97-896-1*NF EN IEC 63296-1:2021 Portable multimedia equipment - Determination of battery duration - Part 1 : powered loudspeaker equipment
• FD X07-014:2006 Metrology - Optimisation of measuring equipment calibration frequencies (metrological confirmation)
• NF Z84-035:1999 Telecommunication - Radio equipment and systems - Technical regulation for conformity assessment of low power and low range radio equipment to be used in radiuo video links in the frequency range 2 454 - 2 483,5 MHz
• NF EN 62054-21:2006 Équipement de comptage de l'électricité (c.a.) - Tarification et contrôle de charge - Partie 21 : prescriptions particulières pour horloges de tarification
• NF EN ISO 9295:2015 Acoustique - Détermination des niveaux de puissance acoustique à haute fréquence émis par les machines et équipements
• NF EN ISO 11554:2017 Optique et photonique - Lasers et équipements associés aux lasers - Méthodes d'essai de la puissance et de l'énergie des faisceaux lasers et de leurs caractéristiques temporelles
• NF EN 300440:2018 Dispositifs à courte portée - Équipements radioélectriques à utiliser dans la plage de fréquences de 1 GHz à 40 GHz - Norme harmonisée concernant l'accès au spectre radioélectrique (V2.2.1)
• NF EN 301489-3:2023 Norme de compatibilité électromagnétique (CEM) concernant les équipements et services radioélectriques - Partie 3 : conditions spécifiques pour les dispositifs à courte portée (SRD) fonctionnant à des fréquences comprises entre 9 kHz et 246 G...
• NF C90-201-7*NF EN 50065-7:2002 Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz - Part 7 : equipment impedance
• NF Z84-208-1:2012 Electromagnetic compatibility and Radio spectrum Matters (ERM) - Radio Frequency Identification Equipment operating in the band 865 MHz to 868 MHz with power levels up to 2 W - Part 1 : technical requirements and methods of measurement (V1.4.1).
• FD Z84-035:1999 Telecommunication. Radio equipment and systems. Technical regulation for conformity assessment of low power and low range radio equipment to be used in radio video links in the frequency range 2454-2483,5 MHz.
• NF Z84-440*NF EN 300440:2018 Short Range Devices (SRD) - Radio equipment to be used in the 1 GHz to 40 GHz frequency range - Harmonised Standard covering the access to radioelectric spectral (V2.2.1)
• NF EN IEC 61051-2:2021 Varistances utilisées dans les équipements électroniques - Partie 2 : spécification intermédiaire pour varistances pour limitations de surtensions transitoires
• FD Z84-035-1999 Telecommunication. Radio equipment and systems. Technical regulation for conformity assessment of low power and low range radio equipment to be used in radio video links in the frequency range 2454-2483, 5 MHz.
• NF EN 302208:2020 Equipements d'identification par radiofréquences fonctionnant dans la bande de 865 MHz à 868 MHz avec des niveaux de puissance pouvant atteindre 2 W et dans la bande de 915 MHz à 921 MHz avec des niveaux de puissance pouvant atteindre 4 W - Norme h...
• NF C93-430-14*NF EN 60603-14:1999 Connectors for frequencies below 3 MHz for use with printed boards - Part 14 : detail specification for circular connectors for low-frequency audio and video applications such as audio, video and audio-visual equipment
• NF C93-614:2005 Piezoelectric devices - Preparation of outline drawings of surface-mounted devices (SMD) for frequency control and selection - General rules.
• NF C93-614:2012 Piezoelectric devices - Preparation of outline drawings of surface-mounted devices (SMD) for frequency control and selection - General rules
• NF T51-429*NF EN ISO 9396:2001 Plastics - Phenolic resins - Determination of the gel time of resols under specific conditions using automatic apparatus

ITU-T - International Telecommunication Union/ITU Telcommunication Sector, time frequency device

• ITU-T E.261-1993 Devices for Measuring and Recording Call Durations
• ITU-T G.8265.1-2010 Precision time protocol telecom profile for frequency synchronization (Study Group 15)
• ITU-T Y.1365.1 CORR 1-2016 Precision time protocol telecom profile for frequency synchronization Corrigendum 1 (Study Group 15)
• ITU-T G.8265.1 CORR 1-2016 Precision time protocol telecom profile for frequency synchronization Corrigendum 1 (Study Group 15)
• ITU-T G.8265.1 AMD 2-2012 Precision time protocol telecom profile for frequency synchronization Amendment 2 (Study Group 15)

IN-BIS, time frequency device

• IS 8161 Pt.7-1977

Japanese Industrial Standards Committee (JISC), time frequency device

• JIS C 9300-6:2013 Arc welding equipment -- Part 6: Limited duty equipment
• JIS A 1703:1976 General rules of testing method for working-space (maintenance, repair and change) of equipment units for dwellings
• JIS C 9300-6:2006 Arc welding equipment -- Part 6: Limited duty manual metal arc welding power sources

IEEE - The Institute of Electrical and Electronics Engineers@ Inc., time frequency device

• IEEE 1139-2008 Definitions of Physical Quantities for Fundamental Frequency and Time Metrology-Random Instabilities
• IEEE 96-1969 General Principles for Rating Electric Apparatus for Short-Time@ Intermittent@ or Varying Duty
• IEEE 127-1963 STANDARD FOR AEROSPACE EQUIPMENT VOLTAGE AND FREQUENCY RATINGS

Society of Automotive Engineers (SAE), time frequency device

• SAE J2052-2005 Test Device Head Contact Duration Analysis
• SAE ARINC720-1-1980 DIGITAL FREQUENCY/FUNCTION SELECTION FOR AIRBORNE ELECTRONIC EQUIPMENT

Underwriters Laboratories (UL), time frequency device

• UL 863 BULLETIN-2003 UL Standard for Safety Time-Indicating and -Recording Appliances
• UL 864 BULLETIN-2006 UL Standard for Safety Time-Indicating and -Recording Appliances
• UL 864 BULLETIN-2002 UL Standard for Safety Time-Indicating and -Recording Appliances
• UL 864 BULLETIN-2004 UL Standard for Safety Time-Indicating and -Recording Appliances
• UL 864 BULLETIN-2000 UL Standard for Safety Time-Indicating and -Recording Appliances
• UL 864 BULLETIN-2003 UL Standard for Safety Time-Indicating and -Recording Appliances
• UL 863-2007 UL Standard for Safety Time-Indicating and -Recording Appliances (Eighth Edition)
• UL 864 BULLETINS-2001 UL Standard for Safety Time-Indicating and -Recording Appliances (03/30/2001 (32p); 01/26/2001 (4p))

Society of Motion Picture and Television Engineers (SMPTE), time frequency device

• SMPTE RP 181-1999 Audio Sector Time Code and Equipment Type Information for 19-mm Type D-1 Digital Component Recording

American National Standards Institute （ANSI), time frequency device

• ANSI/IEEE 1139:2008 Standard Definitions of Physical Quantities for Fundamental Frequency and Time Metrology - Random Instabilities
• ANSI/ASSE A10.10-2015 Safety Requirements for Temporary and Portable Space Heating Devices
• ANSI/ASME RA-Sa-2009 Standard for Level 1/Large Early Release Frequency Probabilistic Risk Assessment for Nuclear Power Plant Applications
• ANSI/ASSE A10.10-1990 Safety Requirements for Temporary and Portable Space Heating Devices and Equipment

SE-SIS, time frequency device

• SIS SS IEC 601-2-2:1987 Medical electrical equipment — Particular requirements for the safety of high frequency surgical equipment
• SIS SS-EN 230-1991 Monoblock oil burners — Safety, control and regulation devices and safety times
• SIS SS-ISO 9295:1989 Acoustics — Measurement of high frequency no/se emitted by computer and business equipment

US-CFR-file, time frequency device

• CFR 47-2.803-2014 Telecommunication. Part2:Frequency allocations and radio treaty matters. Subpart I:Marketing of Radiofrequency Devices. Section2.803:Marketing of radio frequency devices prior to equipment authorization.
• CFR 47-2.805-2014 Telecommunication. Part2:Frequency allocations and radio treaty matters. Subpart I:Marketing of Radiofrequency Devices. Section2.805:Operation of radio frequency devices prior to equipment authorization.

European Telecommunications Standards Institute (ETSI), time frequency device

• ETSI TR 102 311-2015 Fixed Radio Systems; Point-to-point equipment; Specific aspects of the spatial frequency reuse method (V1.2.1)
• ETSI TR 102 311-2004 Fixed Radio Systems; Point-to-point equipment; Specific aspects of the spatial frequency reuse method V1.1.1
• ETSI TR 103 365-2016 Short Range Devices (SRD) using Ultra Wide Band technology (UWB); Time Domain Based Peak Power Measurement for UWB Devices (V1.1.1)
• ETSI PRETS 300 220-1-1996 Radio Equipment and Systems (RES); Short Range Devices; Technical Characteristics and Test Methods for Radio Equipment to be Used in the 25 MHz to 1 000 MHz Frequency Range with Power Levels Ranging up to 500 mW; Part 1: Requirements Related to Spectrum
• ETSI TR 103 059-2013 Electromagnetic compatibility and Radio spectrum Matters (ERM); Short-Range Devices (SRD) for operation in the 13,56 MHz band; System Reference Document for Radio Frequency Identification (RFID) equipment (V1.2.1)
• ETSI I-ETS 300 220-1993 Radio Equipment and Systems (RES); Short Range Devices Technical Characteristics and Test Methods for Radio Equipment to Be Used in the 25 MHz to 1 000 MHz Frequency Range with Power Levels Ranging up to 500 mW
• ETSI EN 301 489-3-2001 Electromagnetic Compatibility and Radio Spectrum Matters (ERM); ElectroMagnetic Compatibility (EMC) Standard for Radio Equipment and Services; Part 3: Specific Conditions for Short-Range Devices (SRD) Operating on Frequencies between 9 KHz and 40 GHz V1.
• ETSI I-ETS 300 330-1994 Radio Equipment and Systems (RES); Short Range Devices (SRDs) Technical Char. and Test Methods for Radio Equipment in the Frequency Range 9 kHz to 25 MHz and Inductive Loop Systems in the Frequency Range 9 kHz to 30 MHz
• ETSI I-ETS 300 330 PRA1-1996 Radio Equipment and Systems (RES); Short Range Devices (SRDs); Technical Characteristics and Test Methods for Radio Equipment in the Frequency Range 9 kHz to 25 MHz and Inductive Loop Systems in the Frequency Range 9 kHz to 30 MHz

ETSI - European Telecommunications Standards Institute, time frequency device

• TR 102 311-2004 Fixed Radio Systems; Point-to-point equipment; Specific aspects of the spatial frequency reuse method (V1.1.1)
• TR 102 311-2015 Fixed Radio Systems; Point-to-point equipment; Specific aspects of the spatial frequency reuse method (V1.2.1)
• PRETS 300 683-1995 Radio Equipment and Systems (RES); ElectroMagnetic Compatibility (EMC) Standard for Short Range Devices (SRD) Operating on Frequencies between 9 kHz and 25 GHz
• ETS 300 683-1997 Radio Equipment and Systems (RES); ElectroMagnetic Compatibility (EMC) Standard for Short Range Devices (SRD) Operating on Frequencies between 9 kHz and 25 GHz
• PRETS 300 683-1997 Radio Equipment and Systems (RES); ElectroMagnetic Compatibility (EMC) Standard for Short Range Devices (SRD) Operating on Frequencies between 9 kHz and 25 GHz
• TR 103 365-2016 Short Range Devices (SRD) using Ultra Wide Band technology (UWB); Time Domain Based Peak Power Measurement for UWB Devices (V1.1.1)
• ETSI EN 305 550:2017 Short Range Devices (SRD); Radio equipment to be used in the 40 GHz to 246 GHz frequency range; Harmonised Standard for access to radio spectrum (V2.1.0)
• ETSI EN 300 440:2017 Short Range Devices (SRD); Radio equipment to be used in the 1 GHz to 40 GHz frequency range; Harmonised Standard for access to radio spectrum (V2.2.0)
• ETSI EN 300 440:2018 Short Range Devices (SRD); Radio equipment to be used in the 1 GHz to 40 GHz frequency range; Harmonised Standard for access to radio spectrum (V2.2.1)
• ETSI EN 300 683:1999 ElectroMagnetic Compatibility and Radio Spectrum matters (ERM); ElectroMagnetic Compatibility (EMC) Standard for Short Range Devices (SRD) Operating on Frequencies between 9 kHz and 25 GHz (V1.2.1)
• I-ETS 300 330 PRA1-1996 Radio Equipment and Systems (RES); Short Range Devices (SRDs); Technical Characteristics and Test Methods for Radio Equipment in the Frequency Range 9 kHz to 25 MHz and Inductive Loop Systems in the Frequency Range 9 kHz to 30 MHz
• PRI-ETS 300 330-1993 Radio Equipment and Systems (RES); Short Range Devices; Technical Characteristics and Test Methods for Radio Equipment in the Frequency Range 9 kHz to 25 MHz and Inductive Loop Systems in the Frequency Range 9 kHz to 30 MHz
• ETSI EN 301 489-3:2001 Electromagnetic Compatibility and Radio Spectrum Matters (ERM); Harmonized EN for ElectroMagnetic Compatibility (EMC) of Radio Communications Equipment and Services; Part 3: Specific Conditions for Short-Range Devices (SRD) Operating on Frequencies betwee

European Committee for Electrotechnical Standardization（CENELEC）, time frequency device

• CLC/TR 50627-2015 Study Report on Electromagnetic Interference between Electrical Equipment/Systems in the Frequency Range Below 150 kHz
• EN IEC 63296-1:2021 Portable multimedia equipment - Determination of battery duration - Part 1: Powered loudspeaker equipment
• EN 50065-7:2001 Signalling on Low-Voltage Electrical Installations in the Frequency Range 3 kHz to 148,5 kHz - Part 7: Equipment Impedance

Conference of European Post Telecommunication (CEPT), time frequency device

• CEPT/ERC/REC 25-10 E-1995 Frequency Ranges for the Use of Temporary Terrestrial ENG/OB Video Links During Events in Other CEPT Member Countries (Bonn 1995)
• CEPT T/R 20-03 E-1988 Low-Power Telecommand and Telemetry Equipment Operating on Collective Frequencies in ISM Bands
• CEPT ERC REPORT 5-1991 Harmonisation of Frequency Bands to Be Designated for Low Power Devices (LPD) (Oslo, December 1991)

AENOR, time frequency device

• UNE 23035-2:2003 Equipment for fire protection. Longtime afterglowing signs. Part 2: Measurement of longtime afterglowing products on the spot.
• UNE 23035-1:2003 Equipement for fire protection. Longtime afterglowing signs. Part 1: Measurement and marking
• UNE-I-ETS 300330:1999 RADIO EQUIPMENT AND SYSTEMS (RES). SHORT RANGE DEVICES (SRDS). TECHNICAL CHARACTERISTICS AND TEST METHODS FOR RADIO EQUIPMENT IN THE FREQUENCY RANGE 9 KHZ TO 25 MHZ AND INDUCTIVE LOOP SYSTEMS IN THE FREQUENCY RANGE 9 KHZ TO 30 MHZ.
• UNE-EN 61300-3-21:2000 Fibre optic interconnecting devices and passive components - Basic test and measurement procedures -- Part 3-21: Examinations and measurements - Switching time and bounce time
• UNE 23035-3:2003 Equipment for fire protection. Longtime afterglowing sings. Part 3: Longtime afterglowing marking.
• UNE 135202:2010 Road signalization equipment. Horizontal signalisation. Paints and cold plastic. Drying time "no pick-up".
• UNE 23035-4:2003 nquipment for fire protection. Longtime afterglowing signs. Part 4: General conditions. Measurement and classification.

Sichuan Provincial Standard of the People's Republic of China, time frequency device

• DB51/T 2318-2017 General specification for high-definition video wireless real-time transmission equipment

German Institute for Standardization, time frequency device

• DIN 48600:1979 Industrial electro-heat equipment; power measurement on high-frequency appliances for induction heating equipment, measuring method for determination of power output of high-frequency generators
• DIN EN ISO 11554:2008 Optics and photonics - Lasers and laser-related equipment - Test methods for laser beam power, energy and temporal characteristics (ISO 11554:2006);English version of DIN EN ISO 11554:2008-11
• DIN EN 60603-14:1999 Connectors for frequencies below 3 MHz for use with printed boards - Part 14: Detail specification for circular connectors for low-frequency audio and video applications such as audio, video and audio-visual equipment (IEC 60603-14:1998); German version E
• DIN EN ISO 11554:2017 Optics and photonics - Lasers and laser-related equipment - Test methods for laser beam power, energy and temporal characteristics (ISO 11554:2017)
• DIN EN 60974-6:2011 Arc welding equipment - Part 6: Limited duty equipment (IEC 60974-6:2010); German version EN 60974-6:2011
• DIN 19016:1983-06 Focal-plane shutters; technical terms, exposure times, synchro contacts, measuring devices
• DIN EN ISO 9295:2015-09 Acoustics - Determination of high-frequency sound power levels emitted by machinery and equipment (ISO 9295:2015); German version EN ISO 9295:2015
• DIN EN 300440:2018 Short Range Devices (SRD) - Radio equipment to be used in the 1 GHz to 40 GHz frequency range - Harmonised Standard for access to radio spectrum (Endorsement of the English version EN 300 440 V2.2.1 (2018-07) as a German standard)
• DIN EN ISO 11554:2017-12 Optics and photonics - Lasers and laser-related equipment - Test methods for laser beam power, energy and temporal characteristics (ISO 11554:2017); German version EN ISO 11554:2017
• DIN EN ISO 26782:2010-02 Anaesthetic and respiratory equipment - Spirometers intended for the measurement of time forced expired volumes in humans (ISO 26782:2009 + Cor. 1:2009); German version EN ISO 26782:2009 + AC:2009
• DIN EN 13319:2000 Diving accessories - Depth gauges and combined depth and time measuring devices - Functional and safety requirements, test methods; German version EN 13319:2000
• DIN EN 300636:2001 Fixed radio systems - Point-to-multipoint equipment - Time Division Multiple Access (TDMA); Point-to-multipoint digital radio systems in frequency bands in the range 1 GHz to 3 GHz (Endorsement of the English version EN 300636 V 1.3.1 (2001-02) as German
• DIN EN 62087:2013 Methods of measurement for the power consumption of audio, video and related equipment (IEC 62087:2011); German version EN 62087:2012
• DIN EN ISO 11554:2023-08 Optics and photonics - Lasers and laser-related equipment - Test methods for laser beam radiant power, radiant energy and temporal characteristics (ISO/DIS 11554:2023); German and English version prEN ISO 11554:2023 / Note: Date of issue 2023-06-30*Int...
• DIN EN ISO 389-5:2007 Acoustics - Reference zero for the calibration of audiometric equipment - Part 5: Reference equivalent threshold sound pressure levels for pure tones in the frequency range 8 kHz to 16 kHz (ISO 389-5:2006); English version of DIN EN ISO 389-5:2007-05

Lithuanian Standards Office , time frequency device

• LST ETS 300 683-2000 Radio Equipment and Systems (RES). ElectroMagnetic Compatibility (EMC) standard for Short Range Devices (SRD) operating on frequencies between 9 kHz and 25 GHz
• LST EN ISO 11554:2008 Optics and photonics - Lasers and laser-related equipment - Test methods for laser beam power, energy and temporal characteristics (ISO 11554:2006)
• LST EN IEC 63296-1:2021 Portable multimedia equipment - Determination of battery duration - Part 1: Powered loudspeaker equipment (IEC 63296-1:2021)

International Organization for Standardization (ISO), time frequency device

• ISO 11554:2006 Optics and photonics - Lasers and laser-related equipment - Test methods for laser beam power, energy and temporal characteristics
• ISO 11554:1998 Optics and optical instruments - Lasers and laser-related equipment - Test methods for laser beam power, energy and temporal characteristics
• ISO/CD 11554 Optics and photonics — Lasers and laser-related equipment — Test methods for laser beam power, energy and temporal characteristics
• ISO 11554:2017 Optics and photonics — Lasers and laser-related equipment — Test methods for laser beam power, energy and temporal characteristics
• ISO/IEC 24769-62:2015 Information Technology - Real Time Locating System (RTLS) Device Conformance Test Methods - Part 62: High rate pulse repetition frequency Ultra Wide Band (UWB) air interface
• ISO/IEC 24769-61:2015 Information Technology - Real Time Locating System (RTLS) Device Conformance Test Methods - Part 61: Low rate pulse repetition frequency Ultra Wide Band (UWB) air interface
• ISO/IEC 24770-62:2015 Information technology - Real-time locating system (RTLS) device performance test methods - Part 62: High rate pulse repetition frequency Ultra Wide Band (UWB) air interface
• ISO/IEC 24770-61:2015 Information technology - Real Time Locating System (RTLS) device performance test methods - Part 61: Low rate pulse repetition frequency Ultra Wide Band (UWB) air interface
• ISO 11554:2003 Optics and optical instruments - Lasers and laser-related equipment - Test methods for laser beam power, energy and temporal characteristics
• ISO/IEC 17629:2014 Information technology - Office equipment - Method for measuring first print out time for digital printing devices
• ISO/IEC 23385:2022 Information technology — Office equipment — Method for measuring single photo printing time for digital printing devices
• ISO 9295:2015 Acoustics - Determination of high-frequency sound power levels emitted by machinery and equipment
• ISO/DIS 11554:2023 Optics and photonics — Lasers and laser-related equipment — Test methods for laser beam radiant power, radiant energy and temporal characteristics
• ISO 13555-3:2004 Diesel engines - Procedure for checking the dynamic timing of diesel fuel injection equipment - Part 3: Validation of timing measurement devices

Professional Standard - Military and Civilian Products, time frequency device

• WJ 2357-1995 Processing time quota of artillery barrel on special equipment

Aeronautical Radio Inc., time frequency device

• ARINC 720-1-1980 Digital Frequency/ Function Selection for Airborne Electronic Equipment, 1979 (Includes Supplement 1)
• ARINC 720-1 BOOK-1980 Digital Frequency/Function Selection for Airborne Electronic Equipment, 1979 Includes Supplement 1
• ARINC 817-2006 AVIONICS DIGITAL VIDEO BUS LOW-DATA RATE - UNCOMPRESSED
• ARINC 818-2006 AVIONICS DIGITAL VIDEO BUS HIGH DATA RATE Incorporates Errata: March 8, 2007

中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会, time frequency device

• GB/T 34995-2017 Technical requirements and measurement methods of receiving equipments for time service in single frequency network
• GB/T 33591-2017 Technical specification of time synchronism system and equipment in smart substation

YU-JUS, time frequency device

• JUS N.N6.201/1-1990 Radiocammunications. Equipment used in the mobile services. Characteristics of equipment used in the /and mohile services for class F3E or G3E emmisions in the frequency band betvveen 68 MHz and 470 MHz. Amendments
• JUS N.N6.201-1989 Radiocommunications. Equipment ussd in the mobi/e services. Characteristics of eguipment used in the land mobile services for ciass F3E or G3E emmisionsin the frequencybandbetween 68MHzand470MHz
• JUS N.N6.265-1982 Radiocommunications. Equipment used in mobile services. Signalling equipments. Frequencies used in tonesignalling systems

European Committee for Standardization (CEN), time frequency device

• EN ISO 11554:1998 Optics and Optical Instruments - Lasers and Laser-Related Equipment - Test Methods for Laser Beam Power, Energy and Temporal Characteristics ISO 11554:1998
• EN ISO 11554:2003 Optics and optical instruments Lasers and laser-related equipment Test methods for laser beam power, energy and temporal characteristics
• EN ISO 11554:2017 Optics and photonics -Lasers and laser-related equipment - Test methods for laser beam power@ energy and temporal characteristics
• prEN ISO 11554 rev Optics and photonics — Lasers and laser-related equipment — Test methods for laser beam power, energy and temporal characteristics
• EN ISO 11554:2008 Optics and photonics - Lasers and laser-related equipment - Test methods for laser beam power, energy and temporal characteristics (ISO 11554:2006)
• EN 12483:1999 Liquid pumps - Pump units with frequency inverters - Guarantee and compatibility tests

CEN - European Committee for Standardization, time frequency device

• EN ISO 11554:2006 Optics and photonics - Lasers and laser-related equipment - Test methods for laser beam power@ energy and temporal characteristics

CEPT - Conference Europeenne des Administrations des Postes et des Telecommunications, time frequency device

• CEPT T/R 01-04 E-1992 Use of Low Power Devices (LPD) Using Integral Antennas and Operating in Harmonized Frequency
• CEPT T/R 20-04-1984 Appareils De Faible Puissance Pour La Telecommande Et Latelemesure A Bande Etroite Sure Des Frequences En Dehors Des Bandes ISM
• CEPT T/R 20-03-1984 Appareils De Faible Puissance Pour La Telecommande Et La Telemesure Fonctionnant Sur Des Frequences Collectives Dans Des Bandes ISM
• CEPT T/R 20-04 E-1988 Low-Power Narrow-Band Telecommand and Telemetry Equipment for Use Outside the ISM Frequency Bands
• I-ETS 300 330-1994 Radio Equipment and Systems (RES) Short Range Devices Technical Characteristics and Test Methods for Radio Equipment in the Frequency Range 9 kHz to 25 MHz and Inductive Loop Systems in the Frequency Range 9 kHz to 30 MHz
• ERC REPORT 5-1991 Harmonisation of Frequency Bands to Be Designated for Low Power Devices (LPD) (Oslo@ December 1991)
• CEPT T/R 01-04 E-1993 Use of Low Power Devices (LPD) Using Integral Antennas and Operating in Harmonized Frequency Bands

BE-NBN, time frequency device

• NBN-EN 60601-2-2-1994 Medical electrical equipment. Part 2: Particular requirements for the safety of high frequency surgical equipment
• NBN S 21-020-1976 portable fire extinguishers - Description -Duration of operation - Efficiency tests (test fires)

ES-UNE, time frequency device

• UNE-EN 300220-1 V3.1.1:2018 Short Range Devices (SRD) operating in the frequency range 25 MHz to 1 000 MHz; Part 1: Technical characteristics and methods of measurement (Endorsed by Asociación Española de Normalización in December of 2018.)
• UNE-EN 300220-2 V3.2.1:2018 Short Range Devices (SRD) operating in the frequency range 25 MHz to 1 000 MHz; Part 2: Harmonised Standard for access to radio spectrum for non specific radio equipment (Endorsed by Asociación Española de Normalización in August of 2018.)
• UNE-EN ISO 11554:2017 Optics and photonics - Lasers and laser-related equipment - Test methods for laser beam power, energy and temporal characteristics (ISO 11554:2017) (Endorsed by Asociación Española de Normalización in October of 2017.)
• UNE-EN IEC 63296-1:2021 Portable multimedia equipment - Determination of battery duration - Part 1: Powered loudspeaker equipment (Endorsed by Asociación Española de Normalización in October of 2021.)
• UNE-EN ISO 9295:2015 Acoustics - Determination of high-frequency sound power levels emitted by machinery and equipment (ISO 9295:2015)
• UNE-EN IEC 62271-108:2020 Electroacoustics - Audiometric equipment - Part 3: Test signals of short duration (Endorsed by Asociación Española de Normalización in January of 2021.)
• UNE-EN IEC 60645-3:2020 Electroacoustics - Audiometric equipment - Part 3: Test signals of short duration (Endorsed by Asociación Española de Normalización in January of 2021.)
• UNE-EN 302208 V3.3.1:2020 Radio Frequency Identification Equipment operating in the band 865 MHz to 868 MHz with power levels up to 2 W and in the band 915 MHz to 921 MHz with power levels up to 4 W; Harmonised Standard for access to radio spectrum (Endorsed by Asociación Espa...
• UNE-EN 302208 V3.1.1:2017 Radio Frequency Identification Equipment operating in the band 865 MHz to 868 MHz with power levels up to 2 W and in the band 915 MHz to 921 MHz with power levels up to 4 W; Harmonised Standard covering the essential requirements of article 3.2 of the ...
• UNE-EN IEC 60512-99-002:2022 Connectors for electrical and electronic equipment - Tests and measurements - Part 99-002: Endurance test schedules - Test 99b: Test schedule for unmating under electrical load (Endorsed by Asociación Española de Normalización in April of 2022.)
• UNE-EN IEC 60512-99-002:2019 Connectors for electrical and electronic equipment - Tests and measurements - Part 99-002: Endurance test schedules - Test 99b: Test schedule for unmating under electrical load (Endorsed by Asociación Española de Normalización in June of 2019.)

未注明发布机构, time frequency device

• BS EN ISO 11554:2017(2020) Optics and photonics — Lasers and laser - related equipment — Test methods for laser beam power, energy and temporal characteristics
• BS 3G 100-4.2:1980(1999) Specification for General requirements for equipment for use in aircraft — Part 4 : Electrical equipment — Section 2 : Electromagnetic interference at radio and audio frequencies

Standard Association of Australia （SAA）, time frequency device

• AS/ACIF S004/SUPPlement 1:2004 Voice frequency performance requirements for Customer Equipment - Supplement 1: Stepped pulsed stimuli for time dependent limiting test
• AS ISO 9295:2019 Acoustics — Determination of high-frequency sound power levels emitted by machinery and equipment
• AS 4268.1:1996 Radio equipment and systems--Short range devices Part 1: Technical characteristics and test methods for radio equipment ni the frequency range 9 kHz to 25 MHz and inductive loop systems in the frequency range 9 kHz to 30 MHz

GB-REG, time frequency device

• REG NASA-LLIS-1012-1997 Lessons Learned ?Space Shuttle Program/Logistics/Cannibalization Rates, Spares, and Repair Turnaround Times

Taiwan Provincial Standard of the People's Republic of China, time frequency device

• CNS 9979-1983 Synchronous High-Speed Data Signalling Rates Between Data Terminal Equipment and Data Communication Equipment
• CNS 13306-1-3-2007 Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-3: Radio disturbance and immunity measuring apparatus - Ancillary equipment - Disturbance power

Professional Standard - Medicine, time frequency device

• YY/T 1142-2013 Methods of measuring the frequency of medical ultrasonic equipment and probe
• YY/T 1142-2003 Methods of measuring the frequency of medical diagnostic and monitoring ultrasonic equipment
• YY/T 0750-2009 Ultrasonics.Physiotherapy systems.Field specifications and methods of measurement in the frequency range 0.5MHz to 5MHz

KR-KS, time frequency device

• KS I ISO 9295-2019 Acoustics — Determination of high-frequency sound power levels emitted by machinery and equipment
• KS C IEC TR 63239-2022 Radio frequency beam wireless power transfer(WPT) for mobile devices

CN-STDBOOK, time frequency device

• 图书 A-4616 Guidelines for Establishing Standards for Radio and Time-Frequency Measuring Instruments: Implementation and Application of JJF 1033-2016 "Measurement Standard Assessment Specification"

PL-PKN, time frequency device

• PN T06584-1990 Labour protection electromagnetic fields of fre?uency 50 Hz E?uipment and methods for > measurement magńetic field intensity of the fre?uency 50 Hz
• PN E02025-1967 Electric systems installations and equipmen? Nomina? frequencies from 0,1 to 10000 c/s

ZA-SANS, time frequency device

• SANS 60974-6:2009 Arc welding equipment Part 6: Limited duty manual metal arc welding power sources
• SANS 300220-1:2006 Electromagnetic compatibility and Radio spectrum Matters (ERM); Short Range Devices (SRD); Radio equipment to be used in the 25 MHz to 1 000 MHz frequency range with power levels ranging up to 500 mW; Part 1: Technical characteristics and test methods
• SANS 300220-3:2005 Electromagnetic compatibility and Radio spectrum Matters (ERM); Short Range Devices (SRD); Radio equipment to be used in the 25 MHz to 1 000 MHz frequency range with power levels ranging up to 500 mW; Part 3: Harmonized EN covering essential requirements

ASHRAE - American Society of Heating@ Refrigerating and Air-Conditioning Engineers@ Inc., time frequency device

• ASHRAE 4082-1997 Effect of Residential Equipment Capacity on Energy Use@ Demand@ and Run-Time

ANSI - American National Standards Institute, time frequency device

• X3.36-1975 SYNCHRONOUS HIGH-SPEED DATA SIGNALING RATES BETWEEN DATA TERMINAL EQUIPMENT AND DATA COMMUNICATION EQUIPMENT

CENELEC - European Committee for Electrotechnical Standardization, time frequency device

• EN 61308:1996 High-Frequency Dielectric Heating Installations Test Methods for the Determination of Power Output

U.S. Military Regulations and Norms, time frequency device

• ARMY MIL-STD-188-141 B-1999 MEDIUM AND HIGH FREQUENCY RADIO EQUIPMENT, INTEROPERABILITY AND PERFORMANCE STANDARDS FOR

Chongqing Provincial Standard of the People's Republic of China, time frequency device

• DB50/T 719-2016 433MHz frequency band micro-power wireless communication equipment physical layer performance testing specification

GOSTR, time frequency device

• GOST R 8.967-2019 State system for ensuring the uniformity of measurements. Transfer units of time, frequency and time scale national UTC(SU) from the State primary standard of the Russian Federation with the use of the GLONASS system. Classification. Measurement uncertain
• GOST R 58243-2018 Portable and hand-held multimedia equipment. Mobile computers. Battery run-time measurement

国家药监局, time frequency device

• YY/T 1804-2021 Anesthesia and Respiratory Equipment Spirometer for measuring human time forced expiratory volume

国家食品药品监督管理局, time frequency device

• YY/T 0750-2018 Sound field requirements and measurement methods for ultrasonic physiotherapy equipment in the frequency range of 0.5MHZ ~ 5MHZ

BELST, time frequency device

• STB 2520.2-2018 Uniform system of navigation and time support. Part 2. User navigation equipment. Satellite navigation equipment. General technical requirements

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