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pressure drop

pressure drop, Total:355 items.

In the international standard classification, pressure drop involves: Electronic tubes, Electrical wires and cables, Television and radio broadcasting, Coals, Fluid power systems, Optoelectronics. Laser equipment, Welding, brazing and soldering, Occupational safety. Industrial hygiene, Hydraulic construction, Transformers. Reactors, Tyres, Aerospace fluid systems and components, Aerospace electric equipment and systems, Electricity. Magnetism. Electrical and magnetic measurements, Tobacco, tobacco products and related equipment, Installations in buildings, Components and accessories for telecommunications equipment, Power transmission and distribution networks, Aerosol containers, Extraction and processing of petroleum and natural gas, Electrical and electronic testing, Cellular materials, Protection against fire, Characteristics and design of machines, apparatus, equipment, Terminology (principles and coordination), Rectifiers. Convertors. Stabilized power supply, Fruits. Vegetables, Road engineering, Pipeline components and pipelines, Valves, Lifting equipment, Electrical accessories, Solar energy engineering, Electromagnetic compatibility (EMC), Ventilators. Fans. Air-conditioners, Air quality, Commercial vehicles, Test conditions and procedures in general, Electrical engineering in general, Construction equipment, Aircraft and space vehicles in general, Lubrication systems, Road vehicle systems, Equipment for petroleum and natural gas industries, Construction materials, Shipbuilding and marine structures in general.


Professional Standard - Electron, pressure drop

  • SJ 446-1973 Methods of measurement for tube voltage drop and tube voltage drop on underheated condition of high-voltage rectifier tubes
  • SJ 447-1973 Methods of measurement for pulse tube voltage drop and pulse tube voltage drop on underheated condition of high-voltage rectifier tubes
  • SJ 454-1973 Methods of measurement for peak voltage drop of tube, reverse peak voltage drop of tube and rectifying current of high-voltage rectifier tubes
  • SJ 1874-1981 Methods of measurement for tube voltage drop of gas laser devices
  • SJ 813-1974 Methods of measurement for the tube voltage drop of glow discharge counting tubes
  • SJ 2354.4-1983 Method of measurement for forward voltage drop of PIN and avalanche photodiodes
  • SJ 2214.2-1982 Method of measurement for forward voltage of semiconductor photodiodes
  • SJ 2214.7-1982 Method of measurement for saturation voltage of semiconductor phototransistors
  • SJ 2215.8-1982 Method of measurement for output saturation voltage of semiconductor photocouplers (diodes)
  • SJ 2215.2-1982 Method of measurement for forward voltage of semiconductor photocouplers (diodes)
  • SJ 1786-1981 Method of measurement for forward voltage of silicon single phase bridge rectifiers,up to 5A
  • SJ 1395-1978 Methods of measurement for anode current and tube voltage drop of gas discharge noise tubes
  • SJ 2355.2-1983 Method of measurement for forward voltage drop of light-emitting devices
  • SJ 2658.2-1986 Methods of measurement for semiconductor infrared diodes Methods of measurement for forward voltage drop

Society of Automotive Engineers (SAE), pressure drop

SAE - SAE International, pressure drop

PL-PKN, pressure drop

  • PN M73270-04-1991 Hydraulic fluid power Pressure relief-valves Mounting surfaces
  • PN-ISO 6565-2021-08 E Tobacco and tobacco products -- Draw resistance of cigarettes and pressure drop of filter rods -- Standard conditions and measurement

ASHRAE - American Society of Heating@ Refrigerating and Air-Conditioning Engineers@ Inc., pressure drop

  • ASHRAE SF-98-23-3-1998 Pressure Drop Consideration of Control Valves
  • ASHRAE 4363-2000 Pressure Drops in T-Junctions - a Comparison
  • ASHRAE 4005-1996 Scale Modeling of the Pressure Drop in a Stairshaft
  • ASHRAE 4440-2001 Heat Transfer and Pressure Drop of Gas Coolers
  • ASHRAE 4234-1999 Survey of In-Tube Evaporation of Ammonia Heat Transfer and Pressure Drop Investigations
  • ASHRAE TO-98-16-5-1998 Prediction of Convective Condensation Pressure Drop Characteristics of New Alternatives to R-502
  • ASHRAE CH-03-13-4-2003 Pressure Drop and Visualization of R-134a Two-Phase Flow in a Rectangular Microchannel
  • ASHRAE CH-03-8-1-2003 Two-Phase Flow Pattern@ Heat Transfer@ and Pressure Drop in Microchannel Vaporization of CO2
  • ASHRAE CH-03-13-2-2003 Heat Transfer and Pressure Drop for Condensation of Refrigerant R-404A at Near-Critical Pressures
  • ASHRAE CH-95-14-1995 Advances in Heat Transfer and Pressure Drop Characteristics of Alternative Refrigerants - Part II
  • ASHRAE CH-95-12-1995 Advances in Heat Transfer and Pressure Drop Characteristics of Alternative Refrigerants - Part 1
  • ASHRAE OR-16-C062-2016 Energy-Saving Measures in a Classroom Using Low Pressure Drop Ceiling Supply Device – A Field Study
  • ASHRAE OR-16-C014-2016 Lubricant Retention and its Effects on Heat Transfer and Pressure Drop of a Microchannel Evaporator
  • ASHRAE CH-03-13-2003 Symposium on Recent Advances in Tube-Side Multiphase Flow Visualization@ Heat Transfer@ and Pressure Drop Correlation
  • ASHRAE 3699-1993 Heat Transfer and Pressure Drop Characteristics of R- 134A@ R-32@ and a Mixture of R-32/ R-134A Inside a Horizontal Tube
  • ASHRAE 4629-2003 Effect of Airflow Maldistribution on Pressure Drop and Thermal Performance of Heat Exchangers in Residential Heat Pump Systems
  • ASHRAE 4088-1997 Flow Boiling and Pressure Drop Measurements for R-134a/Oil Mixtures Part 2: Evaporation in a Plain Tube
  • ASHRAE 4087-1997 Flow Boiling and Pressure Drop Measurements for R-134a/Oil Mixtures Part 1: Evaporation in a Microfin Tube
  • ASHRAE 4471-2001 An Assessment of Refrigerant Heat Transfer@ Pressure Drop@ and Void Fraction Effects in Microfin Tubes (International Journal of HAVC&R Research)
  • ASHRAE 4314-1999 Comparision of R-22@ R-134a@ R-410a@ and R-407c Condensation Performance in Smooth and Enhanced Tubes: Part II@ Pressure Drop
  • ASHRAE 4126-1998 Heat Transfer Coefficients and Pressure Drops for R-134a and an Ester Lubricant Mixture in a Smooth Tube and a Micro-Fin Tube (RP-630)
  • ASHRAE SA-96-2-4-1996 Principles of Refrigerant Circuiting with Application to Microchannel Condensers: Part II - The Pressure-Drop Effect and the Cross-Flow Heat Exchanger Effect
  • ASHRAE AT-01-16-2-2001 Thermal Performance of Flooded Evaporators@ Part 2: Review of Void Fraction@ Two-Phase Pressure Drop@ and Flow Pattern Studies (RP-1089)

Defense Logistics Agency, pressure drop

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, pressure drop

  • GB 9420-1988 Voltage drop in the starter circuit
  • GB/T 24504-2009 The method of injection/falloff well test for coalbed methane well
  • GB/T 17486-1998 Hydraulic fluid power--Filters--Evaluation of pressure drop versus flow characteristics
  • GB/T 17486-2006 Hydraulic fluid power Filters Evaluation of differential pressure versus flow characteristics
  • GB/T 18767-2002 Tobacco and tobacco products--Draw resistance of cigarettes and pressure drop of filter rods-Standard conditions and measurement
  • GB/T 22838.5-2009 Determination of physical characteristics for cigarettes and filter rods.Part 5:Cigarettes draw resistance and filter rods pressure drop
  • GB/T 30137-2013 Power quality.Voltage dips and short interruptions
  • GB/T 25099-2010 Step-down power saving device on distribution networks

Professional Standard - Automobile, pressure drop

Korean Agency for Technology and Standards (KATS), pressure drop

  • KS C 3324-2002 High-voltage drop wires for pole transformer
  • KS C 3324-1982 High-voltage drop wires for pole transformer
  • KS C 9605-1997(2017) Rectifier type DC arc welding machines with drooping characteristics
  • KS H ISO 6565:2007 Tobacco and tobacco products-Draw resistance of cigarettes and pressure drop of filter rods-Standard conditions and measurement
  • KS H ISO 6565:2016 Tobacco and tobacco products－Draw resistance of cigarettes and pressure drop of filter rods－Standard conditions and measurement
  • KS M ISO 7231-2014(2021) Polymeric materials, cellular, flexible — Determination of air flow value at constant pressure-drop
  • KS M ISO 7231:2004 Polymeric materials, cellular flexible-Method of assessment of air flow value at constant pressure-drop
  • KS M ISO 7231:2014 Polymeric materials, cellular, flexible — Determination of air flow value at constant pressure-drop
  • KS C 0272-1995(2000) ELECTROMAGNETIC COMPATIBILITY-TESTING AND MEASURMENT TECHNIQUES-VOLTAGE DIPS, SHORT INTERRUPTIONS AND VOLTAGE VARIATIONS IMMUNITY TEST
  • KS B ISO 9806-1:2003 Test methods for solar collectors-Part 1:Thermal performance of glazed liquid heating collectors including pressure drop
  • KS H ISO 6565-2016(2021) Tobacco and tobacco products－Draw resistance of cigarettes and pressure drop of filter rods－Standard conditions and measurement
  • KS R 2055-1987 Hoist hydraulic cylinders
  • KS B ISO 9806-1-2003(2013) Test methods for solar collectors－Part 1：Thermal performance of glazed liquid heating collectors including pressure drop

Professional Standard - Aerospace, pressure drop

National Metrological Verification Regulations of the People's Republic of China, pressure drop

American National Standards Institute （ANSI), pressure drop

ESDU - Engineering Sciences Data Unit, pressure drop

  • ESDU 91023 A-1993 Condensation inside tubes: pressure drop in straight horizontal tubes.
  • ESDU 90024 B-1993 Condensation inside tubes: pressure drop in straight tubes with vertical downflow.
  • ESDU 72009-1972 PRESSURE DROP IN DUCTS ACROSS ROUND-WIRE GAUZES NORMAL TO THE FLOW
  • ESDU 72009 A-2007 Pressure drop in ducts across round-wire gauzes normal to the flow.
  • ESDU 89039-1989 Boiling inside tubes: pressure drop in straight tubes with upward or horizontal flow.
  • ESDU 84023 A-1985 Shell-and-tube exchangers: pressure drop and heat transfer in shellside downflow condensation.
  • ESDU 86022 A-1988 High-fin staggered tube banks: heat transfer and pressure drop for turbulent single phase gas flow.
  • ESDU 78018-1978 GUIDE TO CALCULATION PROCEDURES FOR SOLVING TYPICAL PROBLEMS RELATED TO PRESSURE DROP IN TWO-PHASE FLOW
  • ESDU 78018 A-2007 Guide to calculation procedures for solving typical problems related to pressure drop in two-phase flow.
  • ESDU 83038 A-1984 Baffled shell-and-tube heat exchangers; flow distribution@ pressure drop and heat transfer coefficient on the shellside.
  • ESDU 93014-1993 Condensation inside tubes. Computer program for pressure drop in straight tubes (horizontal and vertical with downflow).

FI-SFS, pressure drop

Japanese Industrial Standards Committee (JISC), pressure drop

  • JIS C 9311:1989 Voltage reducing devices for AC arc welding machines
  • JIS C 61000-4-11:2008 Electromagnetic compatibility (EMC) -- Part 4-11: Testing and measuring techniques -- Voltage dips, short interruptions and voltage variations immunity tests
  • JIS B 8356-7:2000 Hydraulic fluid power -- Filters -- Evaluation of filter performance -- Part 7: Filters -- Evaluation of pressure drop versus flow characteristics

Taiwan Provincial Standard of the People's Republic of China, pressure drop

  • CNS 11380-2002 Hydraulic elevators
  • CNS 7632-1981 Method of Measuring Voltage Drop on Closed Contacts Where Over 100 Amperes Flow Through the Contacts
  • CNS 9762-1982 Method of Test for Pressure Drop Rate of Compressed Gas-Propelled Products
  • CNS 15165-1-2008 Test methods for solar collectors - Part 1 : Thermal performance of glazed liquid heating collectors including pressure drop

Professional Standard-Ships, pressure drop

工业和信息化部, pressure drop

Professional Standard - Aviation, pressure drop

  • HB 6778-1993 Aircraft fuel system accessories pressure drop test method
  • HB 8503-2014 Pressure drop test methods for fuel system components of civil aircraft

U.S. Military Regulations and Norms, pressure drop

AENOR, pressure drop

  • EA 0009:2003 Snub elements of bundle assembled cores for low voltage overhead lines.
  • UNE-ISO 6565:2012 Tobacco and tobacco products -- Draw resistance of cigarettes and pressure drop of filter rods -- Standard conditions and measurement
  • UNE-EN ISO 7231:2011 Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop (ISO 7231:2010)
  • EA 0033:2008 Voltage stabilizer and step-down light dimmer foe street lighting installations. Performance requirements.

RU-GOST R, pressure drop

  • GOST R ISO 3968-2011 Hydraulic fluid power. Filters. Evaluation of differential pressure versus flow characteristics
  • GOST R 50398-1992 Fire hydraulic elevator. Specifications
  • GOST R 53975-2010 Tobacco and tobacco products. Draw resistance of cigarettes and pressure drop of filter rods. Standard conditions of measurement

SE-SIS, pressure drop

RO-ASRO, pressure drop

International Organization for Standardization (ISO), pressure drop

  • ISO 3968:2017 Hydraulic fluid power - Filters - Evaluation of differential pressure versus flow
  • ISO 6565:2011 Tobacco and tobacco products - Draw resistance of cigarettes and pressure drop of filter rods - Standard conditions and measurement
  • ISO 6565:2015 Tobacco and tobacco products - Draw resistance of cigarettes and pressure drop of filter rods - Standard conditions and measurement
  • ISO 3968:2001 Hydraulic fluid power - Filters - Evaluation of differential pressure versus flow characteristics
  • ISO 3968:1981 Hydraulic fluid power; Filters; Evaluation of pressure drop versus flow characteristics
  • ISO 7231:2010 Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop
  • ISO 7231:1984 Polymeric materials, cellular flexible; Method of assessment of air flow value at constant pressure-drop
  • ISO 7231:2023 Polymeric materials, cellular, flexible — Determination of air flow value at constant pressure-drop
  • ISO 3968:2001/cor 1:2002 Hydraulic fluid power - Filters - Evaluation of differential pressure versus flow characteristics; Technical Corrigendum 1
  • ISO 4059:1978 Polyethylene (PE) pipes; Pressure drop in mechanical pipe-jointing systems; Method of test and requirements
  • ISO/FDIS 7231 Polymeric materials, cellular, flexible — Determination of air flow value at constant pressure-drop
  • ISO 4548-1:1982 Methods of test for full-flow lubricating oil filters for internal combustion engines; Part 1 : Pressure drop/flow characteristics
  • ISO/CD 17778 Plastics piping systems — Fittings, valves and ancillaries — Determination of gaseous flow rate/pressure drop relationships
  • ISO 17778:2015 Plastics piping systems - Fittings, valves and ancillaries - Determination of gaseous flow rate/pressure drop relationships
  • ISO 9806-3:1995 Test methods for solar collectors - Part 3: Thermal performance of unglazed liquid heating collectors (sensible heat transfer only) including pressure drop
  • ISO 4548-3:1982 Methods of test for full-flow lubricating oil filters for internal combustion engines; Part 3 : Resistance to high pressure drop and to elevated temperature
  • ISO 9806-1:1994 Test methods for solar collectors - Part 1: Thermal performance of glazed liquid heating collectors including pressure drop

CZ-CSN, pressure drop

Association Francaise de Normalisation, pressure drop

  • NF ISO 3968:2017 Transmissions hydrauliques - Filtres - Évaluation de la perte de charge en fonction du débit
  • NF L58-405-301*NF EN 3841-301:2005 Aerospace series - Circuit breakers - Test methods - Part 301 : voltage drop
  • NF EN 3841-301:2005 Série aérospatiale - Disjoncteurs - Méthodes d'essais - Partie 301 : chute de tension
  • NF L41-121:1986 Contamination in aircraft hydraulic circuits - Filters - Determination of hydraulic pressure drop versus flow characteristics
  • NF EN ISO 7231:2010 Matériaux polymères alvéolaires souples - Détermination de l'indice d'écoulement d'air à chute de pression constante
  • NF T54-051:1979 Polyethylene pipes. Pressure drop in mechanical pipe-jointing systems. Method of test and requirements.
  • NF T56-113*NF EN ISO 7231:2010 Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop
  • NF T56-113:1998 Polymeric materials, cellular flexible. Method of assessment of air flow value at constant pressure-drop.
  • NF T54-934*NF EN ISO 17778:2015 Plastics piping systems - Fittings, valves and ancillaries - Determination of gaseous flow rate/pressure drop relationships
  • NF T54-934:1997 Plastics piping systems. Fittings, valves and ancillaries. Determination of gaseous flow rate/pressure drop relationships.
  • NF EN ISO 17778:2015 Systèmes de canalisations en plastiques - Raccords, robinets et équipements auxiliaires - Détermination du rapport débit gazeux/perte de charge
  • NF ISO 4548-1:1988 Méthodes d'essai des filtres à huile de lubrification à passage intégral pour moteurs à combustion interne - Partie 1 : caractéristique débit/perte de charge.
  • NF E37-401*NF ISO 4548-1:1988 Methods of test for full-flow lubricating oil filters for internal combustion engines. Part 1 : pressure drop/flow characteristics.
  • NF V37-021*NF ISO 6565:2016 Tobacco and tobacco products - Draw resistance of cigarettes and pressure drop of filter rods - Standard condition and measurment
  • NF ISO 4548-3:1988 Méthodes d'essai des filtres à huile de lubrification à passage intégral pour moteurs à combustion interne - Partie 3 : résistance aux pertes de charge élevées et aux hautes températures.
  • NF EN 2349-307:2007 Série aérospatiale - Exigences et méthodes d'essais des relais et contacteurs - Partie 307 : chute de tension au contact
  • NF L58-100-307*NF EN 2349-307:2007 Aerospace series - Requirements and test procedures for relays and contactors - Part 307 : contact voltage drop.
  • NF E37-403*NF ISO 4548-3:1988 Methods of test for full-flow lubricating oil filters for internal combustion engines. Part 3 : resistance to high pressure drop and to elevated temperature.

United States Navy, pressure drop

British Standards Institution (BSI), pressure drop

  • BS EN 3841-301:2005 Aerospace series - Circuit breakers - Test methods - Voltage drop
  • BS EN 3841-301:2004 Circuit breakers-Test methods-Part 301:Voltage drop
  • BS EN ISO 7231:2010 Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop
  • BS EN ISO 7231:2023 Polymeric materials, cellular, flexible. Determination of air flow value at constant pressure-drop
  • BS EN 12117:1998 Plastics piping systems - Fittings, valves and ancillaries - Determination of gaseous flow rate/pressure drop relationships
  • BS EN ISO 17778:2015 Plastics piping systems. Fittings, valves and ancillaries. Determination of gaseous flow rate/pressure drop relationships
  • 22/30434607 DC BS EN ISO 7231. Polymeric materials, cellular, flexible. Determination of air flow value at constant pressure-drop
  • BS EN 61000-4-11:2004 Electromagnetic compatibility (EMC) - Testing and measurement techniques - Voltage dips, short interruptions and voltage variations immunity tests
  • BS 5381-5:2002 Methods for determination of physical properties of tobacco and tobacco products - Draw resistance of cigarettes and pressure drop of filter rods
  • BS EN 2349-301:2007 Aerospace series - Requirements and test procedures for relays and contactors - Pick up and drop out voltage
  • BS EN 2349-301:2006 Aerospace series - Requirements and test procedures for relays and contactors - Part 301: Pick-up and drop-out voltage
  • BS EN 2349-307:2007 Aerospace series - Requirements and test procedures for relays and contactors - Contact voltage drop
  • BS EN 2349-307:2006 Aerospace series - Requirements and test procedures for relays and contactors - Part 307: Contact voltage drop
  • BS EN 60255-11:2010 Measuring relays and protection equipment - Voltage dips, short interruptions, variations and ripple on auxiliary power supply port
  • 23/30471811 DC BS EN IEC 61810-7-6. Electrical relays. Tests and Measurements - Part 7-6. Contact-circuit resistance (or voltage drop)
  • BS ISO 6565:2015 Tracked Changes. Tobacco and tobacco products. Draw resistance of cigarettes and pressure drop of filter rods. Standard conditions and measurement
  • 22/30457838 DC BS EN 61810-7-6. All-or-nothing electrical relays. Tests and Measurements. - Part 7-6. Contact-circuit resistance (or voltage drop)
  • 22/30451604 DC BS EN 61810-7-6. All-or-nothing electrical relays. Tests and Measurements - Part 7-6. Contact-circuit resistance (or voltage drop)
  • PD ISO/TR 11071-2:2006 Comparison of worldwide lift safety standards. Hydraulic lifts (elevators)

American Society for Testing and Materials (ASTM), pressure drop

  • ASTM B497-00(2012) Standard Guide for Measuring Voltage Drop on Closed Arcing Contacts
  • ASTM D3060-94(2005) Standard Test Method for Pressure Drop Rate of Compressed Gas-Propelled Products
  • ASTM D3060-94(1999)e1 Standard Test Method for Pressure Drop Rate of Compressed Gas-Propelled Products
  • ASTM D3060-94(2013) Standard Test Method for Pressure Drop Rate of Compressed Gas-Propelled Products
  • ASTM B497-00 Standard Guide for Measuring Voltage Drop on Closed Arcing Contacts
  • ASTM B497-00(2006) Standard Guide for Measuring Voltage Drop on Closed Arcing Contacts
  • ASTM D6830-02 Standard Test Method for Characterizing the Pressure Drop and Filtration Performance of Cleanable Filter Media
  • ASTM D6830-02(2008) Standard Test Method for Characterizing the Pressure Drop and Filtration Performance of Cleanable Filter Media
  • ASTM D6830-02(2022) Standard Test Method for Characterizing the Pressure Drop and Filtration Performance of Cleanable Filter Media
  • ASTM D6830-02(2016) Standard Test Method for Characterizing the Pressure Drop and Filtration Performance of Cleanable Filter Media

European Committee for Standardization (CEN), pressure drop

  • prEN 50093-1991 Basic immunity standard for voltage dips, short interruptions and voltage variations
  • EN 3841-301:2004 Aerospace series - Circuit breakers - Test methods - Part 301: Voltage drop
  • EN ISO 7231:2010 Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop (ISO 7231:2010)
  • EN ISO 7231:1997 Polymeric Materials, Cellular Flexible - Method of Assessment of Air Flow Value at Constant Pressure-Drop ISO 7231: 1984
  • EN ISO 7231:2023 Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop (ISO 7231:2023)
  • EN ISO 17778:2015 Plastics piping systems - Fittings@ valves and ancillaries - Determination of gaseous flow rate/pressure drop relationships
  • prEN ISO 7231 Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop (ISO/DIS 7231:2022)
  • EN 12117:1997 Platics Piping Systems - Fittings, Valves and Ancillaries - Determination of Gaseous Flow Rate/Pressure Drop Relationships
  • EN 2349-307:2006 Aerospace series - Requirements and test procedures for relays and contactors - Part 307: Contact voltage drop
  • EN ISO 23251:2020 Petroleum, petrochemical and natural gas industries - Pressure-relieving and depressuring systems (ISO 23251:2019)

Hubei Provincial Standard of the People's Republic of China, pressure drop

  • DB42/T 397-2006 Verification Criterion of Meter for Testing voltage drop of voltage transformer secondary cicuit

National Metrological Technical Specifications of the People's Republic of China, pressure drop

  • JJF 1619-2017 Calibration Specification for Testing Instrument of Transformer Secondary Loop Voltage Drops and Loads
  • JJF 2041-2023 Method for Transformer Secondary Loop Voltage Drop and Loads Field Testing
  • JJF(电子) 30802-2006 Specification for calibration of generators of voltage sag, short interruption and voltage change
  • JJF 1673-2017 Calibration Specification for Voltage Dips,Short Interruptions and Voltage Variations Test Generators

American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), pressure drop

API - American Petroleum Institute, pressure drop

  • API OSAPR-5-1977 STUDY OF PRESSURE DROP AND CLOSURE FORCES IN VELOCITY-TYPE SUBSURFACE SAFETY VALVES
  • API REPORT 5-1977 Study of Pressure Drop and Closure Forces in Velocity-Type Subsurface Safety Valves
  • API REPORT 10-1980 Development of Methods to Predict Pressure Drop and Closure Conditions for Velocity-Type Subsurface Safety Valves
  • API OSAPR-10-1980 DEVELOPMENT OF METHODS TO PREDICT PRESSURE DROP AND CLOSURE CONDITIONS FOR VELOCITY-TYPE SUBSURFACE SAFETY VALVES

Professional Standard - Electricity, pressure drop

  • DL/T 1517-2016 Secondary pressure drop and secondary load field test technical specifications
  • DL/T 1152-2012 General technical specification of secondary loop voltage drop testers of voltage transformer
  • DL/T 2112-2020 Technical guidelines for sensitive load voltage sag control

Danish Standards Foundation, pressure drop

  • DS/ISO 3968:1989 Hydraulic fluid power. Filters. Evaluation of pressure drop versus flow characteristics
  • DS/EN 3841-301:2005 Aerospace series - Circuit breakers - Test methods - Part 301: Voltage drop
  • DS/EN ISO 7231:2010 Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop
  • DS/EN 12117:1998 Plastics piping systems - Fittings, valves and ancillaries - Determination of gaseous flow rate/pressure drop relationships
  • DS/ISO 6565:2011 Tobacco and tobacco products - Draw resistance of cigarettes and pressure drop of filter rods - Standard conditions and measurement
  • DS/EN 2349-307:2006 Aerospace series - Requirements and test procedures for relays and contactors - Part 307: Contact voltage drop

AT-ON, pressure drop

  • ONORM ISO 3968:1983 Hydraulik fluid power; filters; evaluation of pressure drop versus flow characteristics
  • ONORM M 7714-1995 Covered solar collectors - Collector efficiency, effective thermal capacity and pressure drop - Test specifications

Canadian General Standards Board （CGSB), pressure drop

Professional Standard - Energy, pressure drop

  • NB/T 10014-2014 Technical specifications for multi-rate injection/falloff well test in coalbed

IEEE - The Institute of Electrical and Electronics Engineers@ Inc., pressure drop

Professional Standard - Tobacco, pressure drop

  • YC/T 446-2012 General technical conditions for the cigarette draw resistance and filter rod pressure drop instrument

Professional Standard - Agriculture, pressure drop

GB-REG, pressure drop

Institute of Electrical and Electronics Engineers (IEEE), pressure drop

Group Standards of the People's Republic of China, pressure drop

European Association of Aerospace Industries, pressure drop

German Institute for Standardization, pressure drop

  • DIN EN 3841-301:2005 Aerospace series - Circuit breakers - Test methods - Part 301: Voltage drop; German and English version EN 3841-301:2004
  • DIN EN 3841-301:2005-09 Aerospace series - Circuit breakers - Test methods - Part 301: Voltage drop; German and English version EN 3841-301:2004 / Note: Applies in conjunction with DIN EN 3841-100 (2005-09).
  • DIN EN ISO 7231:2022-07 Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop (ISO/DIS 7231:2022); German and English version prEN ISO 7231:2022 / Note: Date of issue 2022-06-10*Intended as replacement for DIN EN ISO 7231 (2010-12).
  • DIN EN 12117:1997 Plastics piping systems - Fittings, valves and ancillaries - Determination of gaseous flow rate/pressure drop relationships; German version EN 12117:1997
  • DIN EN ISO 7231:2010-12 Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop (ISO 7231:2010); German version EN ISO 7231:2010 / Note: To be replaced by DIN EN ISO 7231 (2022-07).
  • DIN EN ISO 7231:2023-11 Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop (ISO 7231:2023); German version EN ISO 7231:2023
  • DIN EN ISO 17778:2015-06 Plastics piping systems - Fittings, valves and ancillaries - Determination of gaseous flow rate/pressure drop relationships (ISO 17778:2015); German version EN ISO 17778:2015
  • DIN 72600:1994 Voltage drop in electric wiring systems of road vehicles and their trailers for the supply of their lighting equipment; measurements, assessment of the results
  • DIN EN 2349-307:2007-05 Aerospace series - Requirements and test procedures for relays and contactors - Part 307: Contact voltage drop; German and English version EN 2349-307:2006
  • DIN VDE 0100 Beiblatt 5:2021 Low-voltage electrical installation; Supplement 5: Permissibel lengths of cables and cords taking into consideration fault protection, protection against short circuit and voltage drop
  • DIN EN 2349-307:2007 Aerospace series - Requirements and test procedures for relays and contactors - Part 307: Contact voltage drop; German and English version EN 2349-307:2006
  • DIN EN ISO 7231:2010 Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop (ISO 7231:2010); German version EN ISO 7231:2010
  • DIN EN ISO 23251:2007 Petroleum, petrochemical and natural gas industries - Pressure-relieving and depressuring systems (ISO 23251:2006); English version EN ISO 23251:2007
  • DIN EN IEC 61810-7-6:2022-08 All-or-nothing electrical relays - Tests and Measurements - Part 7-6: Contact-circuit resistance (or voltage drop) (IEC 94/645/CD:2022); Text in German and English / Note: Date of issue 2022-07-29

IN-BIS, pressure drop

Lithuanian Standards Office , pressure drop

  • LST EN 3841-301-2005 Aerospace series - Circuit breakers - Test methods - Part 301: Voltage drop
  • LST EN ISO 7231:2010 Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop (ISO 7231:2010)
  • LST EN 12117-2002 Plastics piping systems - Fittings, valves and ancillaries - Determination of gaseous flow rate/pressure drop relationships
  • LST EN ISO 17778:2015 Plastics piping systems - Fittings, valves and ancillaries - Determination of gaseous flow rate/pressure drop relationships (ISO 17778:2015)
  • LST EN 2349-307-2007 Aerospace series - Requirements and test procedures for relays and contactors - Part 307: Contact voltage drop

ES-UNE, pressure drop

  • UNE-EN 3841-301:2004 Aerospace series - Circuit breakers - Test methods - Part 301: Voltage drop (Endorsed by AENOR in April of 2005.)
  • UNE-ISO 6565:2018 Tobacco and tobacco products -- Draw resistance of cigarettes and pressure drop of filter rods -- Standard conditions and measurement
  • UNE-EN ISO 17778:2015 Plastics piping systems - Fittings, valves and ancillaries - Determination of gaseous flow rate/pressure drop relationships (ISO 17778:2015)
  • UNE-EN 2349-307:2006 Aerospace series - Requirements and test procedures for relays and contactors - Part 307: Contact voltage drop (Endorsed by AENOR in March of 2007.)

Canadian Standards Association (CSA), pressure drop

  • CSA B55.1-2012 Méthode d’essai pour la mesure de l’efficacité et de la perte de charge des récupérateurs de chaleur des eaux grises (première édition)
  • CSA B356-00 UPD 2-2002 Water Pressure Reducing Valves for Domestic Water Supply Systems

Professional Standard - Railway, pressure drop

  • TB/T 3056.1-2002 Diesel locomotive oil filter element pressure drop--Test method for flow characteristics
  • TB/T 3056.2-2002 Test method for resistance to high pressure drop and high temperature performance of oil filter element of diesel locomotive

Hebei Provincial Standard of the People's Republic of China, pressure drop

  • DB13/T 5017-2019 General technical requirements for automatic pressure drop equipment for prestressed tunnels in highway bridges

Anhui Provincial Standard of the People's Republic of China, pressure drop

American Society of Mechanical Engineers (ASME), pressure drop

Aerospace, Security and Defence Industries Association of Europe (ASD), pressure drop

ASD-STAN - Aerospace and Defence Industries Association of Europe - Standardization, pressure drop

  • PREN 3841-301-1998 Aerospace Series Circuit Breakers Test Methods Part 301 : Voltage Drop (Edition P 2)
  • PREN 3841-301-1996 Aerospace Series Circuit Breakers Test Methods Part 301 : Voltage Drop (Edition P 1)
  • PREN 2349-307-2000 Aerospace Series Requirements and Test Procedures for Relays and Contactors Part 307: Contact Voltage Drop (Edition P 1)

Professional Standard - Machinery, pressure drop

VN-TCVN, pressure drop

  • TCVN 6937-2008 Tobacco and tobacco products.Draw resistance of cigarettes and pressure drop of filter rods.Standard conditions and measurement
  • TCVN 6396-2-2009 Hydraulic lifts.Safety requirements for the construction and installation

GOSTR, pressure drop

  • GOST 34527-2019 Tobacco and tobacco products. Draw resistance of cigarettes and pressure drop of filter rods. Standard conditions and measurement

International Electrotechnical Commission (IEC), pressure drop

  • IEC 61000-4-11:2001 Electromagnetic compatibility (EMC) - Part 4-11: Testing and measuring techniques; Voltage dips, short interruptions and voltage variations immunity tests

KR-KS, pressure drop

  • KS H ISO 6565-2016 Tobacco and tobacco products－Draw resistance of cigarettes and pressure drop of filter rods－Standard conditions and measurement

Henan Provincial Standard of the People's Republic of China, pressure drop

国家市场监督管理总局、中国国家标准化管理委员会, pressure drop

  • GB/T 39269-2020 Voltage dip and short interruption—Immunity testing method for low voltage equipment
  • GB/T 39270-2020 Voltage dip indices and severity assessment method

Military Standard of the People's Republic of China-General Armament Department, pressure drop

  • GJB 9376-2018 Calibration procedures for voltage sag, interruption and voltage change generators

Professional Standard - Construction Industry, pressure drop

  • JGJ 183-2009 Technical specification for safety of hydraulic lifting integral scaffold
  • JGJ/T 183-2019 Safety Technical Standards for Hydraulic Lifting Overall Scaffolding

Professional Standard - Petroleum, pressure drop

  • SY/T 6261-1996 Interpretation and Analysis Method of Pressure Drop Data of Water Injection Well

Standard Association of Australia （SAA）, pressure drop

  • AS 1012.4.2:1999 Methods of testing concrete - Determination of air content of freshly mixed concrete - Measuring reduction in air pressure in chamber above concrete

国家烟草专卖局, pressure drop

  • YC/T 547.2-2016 Technical review specifications for special measuring instruments for the tobacco industry Part 2: Cigarette draw resistance and filter rod pressure drop testing equipment

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