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ratio

ratio, Total:344 items.

In the international standard classification, ratio involves: Optics and optical measurements, Photography, Cinematography, Ground service and maintenance equipment, Electricity. Magnetism. Electrical and magnetic measurements, Paint ingredients, Pipeline components and pipelines, Gears, Paints and varnishes, Conducting materials, Plastics, Mechanical testing, Components for electrical equipment, Radiation measurements, On-board equipment and instruments, Characteristics and design of machines, apparatus, equipment, Electrical engineering in general, Electrical accessories, Non-metalliferous minerals, Corrosion of metals, Iron and steel products, Textile fibres, Acoustics and acoustic measurements, Construction materials, Valves, Burners. Boilers, Ventilators. Fans. Air-conditioners, Water quality, Testing of metals, Quality, Packaging and distribution of goods in general, Non-destructive testing, Nuclear energy engineering, Medical equipment, Capacitors, Telecommunications in general, Audio, video and audiovisual engineering, Metalliferous minerals, Solar energy engineering, Galvanic cells and batteries, Heat pumps, Soil quality. Pedology, Metrology and measurement in general, Sugar. Sugar products. Starch, Road engineering, Telecommunication systems, Products of the chemical industry, Fuels, Petroleum, petroleum products and natural gas handling equipment, Raw materials for rubber and plastics, Electromechanical components for electronic and telecommunications equipment, Television and radio broadcasting, Construction industry, Air quality, Measurement of fluid flow, Earthworks. Excavations. Foundation construction. Underground works, Integrated circuits. Microelectronics, Radiocommunications, Structures of buildings, Explosion protection, Non-ferrous metals, Powder metallurgy, Internal combustion engines for road vehicles, Tobacco, tobacco products and related equipment, Analytical chemistry, Telecommunication terminal equipment, Applications of information technology, Installations in buildings, Rubber, Products of the textile industry, Inorganic chemicals, Hydraulic construction, Organic chemicals, Thermodynamics and temperature measurements, Insulating materials, Fibre optic communications, Products of non-ferrous metals, Meat, meat products and other animal produce, Networking.

American National Standards Institute （ANSI), ratio

ANSI/INFOCOMM 3M-2011 Projected Image System Contrast Ratio
ANSI/SCTE 119-2011 Measurement Procedure for Noise Power Ratio
ANSI T1.418a-2004 High bit rate Digital Subscriber Line - 2nd Generation (HDSL2/HDSL4), Issue 2

United States Navy, ratio

NAVY MIL-T-9936-1961 TESTER-RATER, PUNCHBOARD

AASHTO - American Association of State Highway and Transportation Officials, ratio

DIVISION I 10.5-1996 Depth Ratios (Interim 2000)

German Institute for Standardization, ratio

DIN 8236-3:1971-07 Chronometric Terms; Coefficients of the Rate
DIN EN ISO 2814:2006 Paints and varnishes - Comparison of contrast ratio (hiding power) of paints of the same type and colour (ISO 2814:1973); English version of DIN EN ISO 2814:2006-04
DIN EN 301171:2000 Video coding for low bit rate communication [ITU-T Recommendation H.263 (1996)] (Endorsement of the English version EN 301171 V 1.1.1 (1998-07) as German standard)
DIN 52102:2006 Test methods for aggregates - Determination of dry bulk density by the cylinder method and calcualtion of the ratio of density
DIN 52102:2013 Test methods for aggregates - Determination of dry bulk density by the cylinder method and calculation of the ratio of density
DIN EN 12067-2:2004 Gas/air ratio controls for gas burners and gas burning appliances - Part 2: Electronic types; German version EN 12067-2:2004
DIN 25482-3:1993 Limit of detection and limit of decision for nuclear radiation measurements; measurement by use of linear analog ratemeters
DIN EN ISO 6504-3:2007 Paints and varnishes - Determination of hiding power - Part 3: Determination of contrast ratio of light-coloured paints at a fixed spreading rate (ISO 6504-3:2006); English version of DIN EN ISO 6504-3:2007-05
DIN EN ISO 7751:2017-06 Rubber and plastics hoses and hose assemblies - Ratios of proof and burst pressure to maximum working pressure (ISO 7751:2016); German version EN ISO 7751:2016
DIN EN ISO 11073-10418:2014-06 Health informatics - Personal health device communication - Part 10418: Device specialization - International Normalized Ratio (INR) monitor (ISO/IEEE 11073-10418:2014); English version EN ISO 11073-10418:2014
DIN 1715-2:1983-11 Thermostat metals; testing the specific thermal curvature
DIN 19527:2012 Leaching of solid materials - Batch test for the examination of the leaching behaviour of organic substances at a liquid to solid ratio of 2 l/kg

Association Francaise de Normalisation, ratio

NF C42-161*NF EN 60524:1993 Direct-current resistive volt ratio boxes.
NF T30-073:2016 Paints and varnishes - Assessment of the natural spreading rate
NF T30-073:1989 Paints and varnishes. Assessment of the natural spreading rate.
NF T30-054:2006 Paints and varnishes - Comparison of contrast ratio (hiding power) of paints of the same type and colour.
NF X06-063:1987 Applications de la statistique - Comparaison du rapport de deux variances - (deux écarts-types) à une valeur donnée.
NF X06-027:1987 Inspection by measurement of the proportion of non conforming items. Guidance on the design of a sampling programme.
NF S94-066:1998 Materials for surgical implants. Quantitative determination of the Ca/P ratio of calcium phosphates.
NF Z82-297*NF ETS 300297:1999 Integrated Services Digital Network (ISDN). Access digital section for ISDN basic rate.
NF S31-079-1*NF EN ISO 10534-1:2003 Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Part 1 : method using standing wave ratio
NF ISO 6376:1986 Produits carbonés utilisés pour la production de l'aluminium - Brai pour électrodes - Détermination du taux des matières insolubles dans le toluène.
NF ISO 6791:1986 Produits carbonés utilisés pour la production de l'aluminium - Brai pour électrodes - Détermination du taux de matières insolubles dans la quinoleine.
NF D36-391-2*NF EN 12067-2:2004 Gas/air ratio controls for gas burners and for gas burning appliances - Part 2 : electronic types
NF ISO 21238:2007 Énergie nucléaire - Technologie du combustible nucléaire - Méthode des ratios pour déterminer la radioactivité des colis de déchets de faible et moyenne activité produits par les centrales nucléaires
NF EN ISO 7751:2017 Tuyaux et flexibles en caoutchouc et en plastique - Rapports des pressions d'épreuve et de rupture à la pression maximale de service
NF T30-092-3:2007 Paints and varnishes - Determination of hiding power - Part 3 : determination of contrast ratio of light-coloured paints at a fixed spreading rate.
NF T46-051-2*NF ISO 7270-2:2012 Rubber - Analysis by pyrolytic gas-chromatographic methods - Part 2: determination of styrene/butadiene/isoprene ratio
NF X06-024:1993 Sequential sampling plans for inspection by attributes.
NF T77-162:1988 Basic silicones for industrial use. Determination of ratios phenyl/silicium and phenyl/methyl. Near infrared spectrometric method.
NF S66-200-2*NF EN 14034-2+A1:2011 Determination of explosion characteristics of dust clouds - Part 2 : determination of the maximum rate of explosion pressure rise (dp/dt)max of dust clouds.
NF S66-200-2/IN1*NF EN 14034-2/IN1:2011 Determination of explosion characteristics of dust clouds - Part 2 : determination of the maximum rate of explosion pressure rise (dp/dt)max of dust clouds
NF EN ISO 11073-10418:2014 Informatique de santé - Communication entre dispositifs de santé personnels - Partie 10418 : spécialisation des dispositifs - Surveillance du rapport normalisé international (INR)
NF S97-518-10418*NF EN ISO 11073-10418:2014 Health informatics - Personal health device communication - Part 10418 : device specialization - International normalized ratio (INR) monitor
NF M60-454*NF ISO 12795:2006 Nuclear fuel technology - Uranium dioxide powder and pellets - Determination of uranium and oxygen/uranium ratio by gravimetric method with impurity correction
NF P98-721:1992 Road construction and maintenance equipment. Continuous batching. Equipment for aggregates. Test bench and method for flow rate measurement.
NF ISO 11265:1995 Qualité du sol - Détermination de la conductivité électrique spécifique
NF C74-226*NF EN 61262-6:1994 Medical electrical equipment. Characteristics of electro-optical X-ray image intensifiers. Part 6 : determination of the contrast ratio and veiling glare index.

Korean Agency for Technology and Standards (KATS), ratio

KS C IEC 60524-2013(2018) Direct-current resistive volt ratio boxes
KS M ISO 9967:2003 Thermoplastics pipes-Determination of creep ratio
KS M ISO 9967:2016 Thermoplastics pipes－Determination of creep ratio
KS C IEC 61788-5:2002 Superconductivity-Part 5:Matrix to superconductor volume ratio measurement-Copper to superconductor volume ratio of Cu/Nb-Ti composite superconductors
KS C IEC 60255-13-A:2014 Electrical relays — Part 13: Biased(percentage) differential relays
KS C IEC 60255-13:2005 Electrical relays-Part 13:Biased (percentage) differential relays
KS C IEC 60255-13:2014 Electrical relays－Part 13：Biased (percentage) differential relays
KS T 1303-2013 Measuring methods for space proportion of commercial packaging(consumer packaging)
KS M ISO 2814:2002 Paints and varnishes－Comparison of contrast ratio(hiding power) of paints of the same type and colour
KS C 6421-2002 FIXED ALUMINIUM ELECTROLYTIC CAPACITORS WITH NON-SOLID ELECTROLYTE FOR USE IN ELECTRONIC EQUIPMENT
KS C 6421-1982 FIXED ALUMINIUM ELECTROLYTIC CAPACITORS WITH NON-SOLID ELECTROLYTE FOR USE IN ELECTRONIC EQUIPMENT
KS A ISO 4238:2003 Cinematography－Optical printing ratios for enlargement and reduction of motion－picture film images－Specifications
KS B ISO 12721:2008 Non-destructive testing－Thermal neutron radiographic testing－Determination of beam L/D ratio
KS C IEC 60512-25-1:2004 Connectors for electronic equipment-Tests and measurements-Part 25-1:Test 25a-Crosstalk ratio
KS C IEC 60512-25-1:2014 Connectors for electronic equipment－Tests and measurements－Part 25－1：Test 25a－Crosstalk ratio
KS M ISO 12979:2004 Carbonaceous materials used in the production of aluminium－Pitch for electrodes－Determination of C/H ratio in the quinoline-insoluble fraction
KS M ISO 7270-2:2007 Rubber－Analysis by pyrolytic gas-chromatographic methods－Part 2：Determination of styrene/butadiene/isoprene ratio
KS M ISO 7270-2-2017(2022) Rubber — Analysis by pyrolytic gas-chromatographic methods — Part 2: Determination of styrene/butadiene/isoprene ratio
KS M ISO 7270-2:2017 Rubber — Analysis by pyrolytic gas-chromatographic methods — Part 2: Determination of styrene/butadiene/isoprene ratio
KS M ISO 1689-2017(2022) Sodium and potassium silicates for industrial use — Calculation of the ratio: silicon dioxide/sodium oxide or silicon dioxide/potassium oxide
KS M ISO 6504-3:2012 Paints and varnishes-Determination of hiding power- Part 3:Determination of contrast ratio of light-coloured paints at a fixed spreading rate
KS K ISO 2062:2012 Textiles-Yarns from packages-Determination of single-end breaking force and elongation at break using constant rate of extension(CRE) tester
KS X ISO/IEEE 11073-10418-2016(2021) Health informatics — Personal health device communication — Part 10418: Device specialization: International Normalized Ratio(INR) monitor
KS I ISO 11265:2021 Soil quality — Determination of the specific electrical conductivity
KS I ISO 11265-2005(2015) Soil quality－Determination of the specific electrical conductivity
KS C IEC 61262-6:2003 Medical electrical equipment－Characteristics of electro-optical X-ray image intensifiers－Part 6：Determination of the contrast ratio and veiling glare index
KS C IEC 61788-6:2002 Superconductivity - Part 6 : Mechanical properties measurement -Room temperature tensile test of Cu/Nb-Ti composite superconductors

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

GB 5211.17-1988 Comparison of Contrast Ratio (Hiding Power) of White Pigments
GB/T 5211.17-1988 Comparison of contrast ratio (hiding power) of white pigments
GB/T 23981-2009 Determination of contrast ratio of white and light coloured paints
GB/T 9270-1988 Determination of contrast ratio of light coloured paints (using polyester film)
GB/T 18042-2000 Thermoplastics pipes-Determination of creep ratio
GB/T 2927-1994 Optical printing ratios for enlargement and reduction of motion-picture film images-specification
GB/T 14731-1993 Synchronous digital hierarchy Bit rates
GB/T 18932.1-2002 Method for the determination of C-4 plant sugars in honey--Stable carbon isotope ratio method
GB/T 18119-2000 Video coding for low bit rate communication
GB/T 14731-2008 Synchronous digital hierarchy(SDH)bit rates
GB/T 30793-2014 Measuring ratio of anatase to rutile in titanium dioxide pigments by X-ray diffraction
GB/T 7611-2001 Characteristics of the electrical interface at hierarchical bit rate for digital network
GB/T 23366-2009 Electrochemical performance test of lithium cobalt oxide.Test method for discharge plateau capacity ratio and cycle life
GB/T 9574-2001 Rubber and plastics hoses and hose assemblies--Ratios of proof and burst pressure to design working pressure
GB/T 29613.2-2014 Rubber.Analysis by pyrolytic gas-chromatographic methods.Part 2:Determination of styrene/butadiene/isoprene ratio

International Electrotechnical Commission (IEC), ratio

IEC 60524:1975 Direct-current resistive volt ratio boxes
IEC 60255-13:1980 Electrical relays. Part 13 : Biased (percentage) differential relays
IEC 61501:1998 Nuclear reactor instrumentation - Wide range neutron fluence rate meter - Mean square voltage method

CN-STDBOOK, ratio

图书 A-4493 Ratiometric Theory and Practice

CZ-CSN, ratio

CSN 03 1013-1976 Gear-boxes for general use. Gear ratios.
CSN ISO 10113:1994 Metallic materials.Sheet and strips.Determination of plastic strain ratio
CSN IEC 1123:1994 Reliability testing. Compliance test plans for success ratio
CSN 46 5451-1976 Row distances, seeding and planting,rates, spacings and depths of mechanically cultivated plants.

TR-TSE, ratio

TS 885-1970 DETERMINATION OF ALKAL? SOLUBILITY RATES ON WOOL

VN-TCVN, ratio

TCVN 6672-2000 Cigarettes.Determination of loose adhitive rate
TCVN 7259-2003 Fine cut tobacco.Determination of fine cut tobacco ratio by sieving method
TCVN 5123-1990 Content of carbon in exhaust gases of automobiles with petrol engines.Rates and methods of determination
TCVN 7826-2007 Electric fans.Energy Efficiency Ratio
TCVN 6650-2000 Soil quality.Determination of the specific electrical conductivity

RO-ASRO, ratio

STAS 6299/3-1990 SERIES I FREIGHT CONTA INERS Uassification, dimensions and ratings
STAS 10499-1976 Rating fuel TANDARD HEPTANE
STAS SR ISO 7751:1995 Rubber and plastics hoses and hose assemblies - Ratios of proof and burst pressure to design working pressure

International Telecommunication Union (ITU), ratio

ITU-R INFORME BT.484-2 SPANISH-1986 RATIO OF PICTURE-SIGNAL TO SYNCHRONIZING-SIGNAL
ITU-T G.702-1993 DIGITAL HIERARCHY BIT RATES
ITU-T G.702 FRENCH-1993 DIGITAL HIERARCHY BIT RATES
ITU-T G.702 SPANISH-1993 DIGITAL HIERARCHY BIT RATES
ITU-T D.5 FRENCH-1993 COSTS AND VALUE OF SERVICES RENDERED AS FACTORS IN THE FIXING OF RATES
ITU-T D.5 SPANISH-1993 COSTS AND VALUE OF SERVICES RENDERED AS FACTORS IN THE FIXING OF RATES
ITU-R S.733-2 FRENCH-2000 DETERMlNATION OF THE G/T RATIO FOR EARTH STATIONS OPERATlNG lN THE FIXED-SATELLITE SERVICE
ITU-R S.733-2 SPANISH-2000 DETERMlNATION OF THE G/T RATIO FOR EARTH STATIONS OPERATlNG lN THE FIXED-SATELLITE SERVICE
ITU-T G.751-1988 Digital Multiplex Equipments Operating at the Third Order Bit Rate of 34 368 kbit/s and the Fourth Order Bit Rate of 139 264 kbit/s and Using Positive Justification - General Aspects of Digital Transmission Systems; Terminal Equipments (Study Groups XV a
ITU-R S.671-3 FRENCH-1994 NECESSARY PROTECTION RATIOS FOR NARROW-BAND SINGLE CHANNEL-PER-CARRIER TRANSMISSIONS INTERFERED WITH BY ANALOGUE TELEVISION CARRIERS
ITU-R S.671-3 SPANISH-1994 NECESSARY PROTECTION RATIOS FOR NARROW-BAND SINGLE CHANNEL-PER-CARRIER TRANSMISSIONS INTERFERED WITH BY ANALOGUE TELEVISION CARRIERS
ITU-R RAPPORT BT.2005 FRENCH-1995 Bit-Rate Reduction for Digital TV Signals
ITU-R BT.1380-2006 Standards for bit rate reduction coding systems for SDTV
ITU-T G.751-1993 DIGITAL MULTIPLEX EQUIPMENTS OPERATING AT THE THIRD ORDER BIT RATE OF 34 368 kbit/s AND THE FOURTH ORDER BIT RATE OF 139 264 kbit/s AND USING POSITIVE JUSTIFICATION
ITU-R BT.1380-1-2006 Standards for bit rate reduction coding systems for SDTV
ITU-R BS.1115-1 SPANISH-2005 Low bit-rate audio coding Codificaci髇 de audio a baja velocidad binaria
ITU-T G.751 FRENCH-1993 DIGITAL MULTIPLEX EQUIPMENTS OPERATING AT THE THIRD ORDER BIT RATE OF 34 368 kbit/s AND THE FOURTH ORDER BIT RATE OF 139 264 kbit/s AND USING POSITIVE JUSTIFICATION
ITU-R BS.1115-1-2004 Low bit-rate audio coding (Question ITU-R 19/6)
ITU-T G.975.1 CORR 1-2006 Forward error correction for high bit-rate DWDM submarine systems Corrigendum 1 Study Group 15
ITU-T G.975.1-2004 Forward error correction for high bit-rate DWDM submarine systems
ITU-T H.324-2009 Terminal for low bit-rate multimedia communication (Study Group 16)
ITU-T G.751 SPANISH-1993 DIGITAL MULTIPLEX EQUIPMENTS OPERATING AT THE THIRD ORDER BIT RATE OF 34 368 kbit/s AND THE FOURTH ORDER BIT RATE OF 139 264 kbit/s AND USING POSITIVE JUSTIFICATION
ITU-R BT.1199-2010 Use of bit-rate reduction in the HDTV studio environment
ITU-R BT.1199 FRENCH-1995 Use of Bit-Rate Reduction in the HDTV Studio Environment Utilisation de la r閐uction du d閎it binaire dans l'environnement d'un studio de TVHD
ITU-T G.991.1-1998 High Bit Rate Digital Subscriber Line (HDSL) Transceivers - Series G: Transmission Systems and Media Digital Systems and Networks - Digital Transmission Systems - Digital Sections and Digital Line System - Access Networks Study Group 15; 168 pp
ITU-T H.263 SPANISH-2005 Video coding for low bit rate communication study Group 16
ITU-T H.263 FRENCH-2005 Video coding for low bit rate communication study Group 16
ITU-T G.982-1996 Optical Access Networks to Support Services Up to the ISDN Primary Rate or Equivalent Bit Rates - Series G: Transmission Systems and Media Digital Systems and Networks Digital Transmission Systems - Digital Sections and Digital Line System - Optical Line
ITU-R QUESTION 19-1/6-2009 Bit-rate reduction coding of audio signals for broadcasting applications
ITU-R BT.1199-1 FRENCH-2010 Use of Bit-Rate Reduction in the HDTV Studio Environment
ITU-R BT.1199-1 SPANISH-2010 Use of bit-rate reduction in the HDTV studio environment

Professional Standard - Electricity, ratio

DL/T 1771-2017 Technical Specifications of Ratio Differential Protection Function

British Standards Institution (BSI), ratio

BS EN 61788-5:2003 Superconductivity - Matrix to superconductor volume ratio measurement - Copper to superconductor volume ratio of Cu/Nb-Ti composite superconductors
BS EN 61788-5:2001 Superconductivity - Matrix to superconductor volume ratio measurement - Copper to superconductor volume ratio of Cu/Nb-Ti composite superconductors
BS EN 61788-5:2013 Superconductivity. Matrix to superconductor volume ratio measurement. Copper to superconductor volume ratio of Cu/Nb-Ti composite superconducting wires
2G 114-1953 Specification for direct current ratiometer indicators for aircraft
BS 2G 114:1953 Specification for direct current ratiometer indicators for aircraft
BS EN ISO 2814:2007 Paints and varnishes - Comparison of contrast ratio (hiding power) of paints of the same type and colour
BS ISO 4695:2015 Iron ores for blast furnace feedstocks. Determination of the reducibility by the rate of reduction index
BS ISO 4695:2007 Iron ores for blast furnace feedstocks. Determination of the reducibility by the rate of reduction index
BS EN 12067-2:2004 Gas/air ratio controls for gas burners and gas burning appliances - Electronic types
BS 5355:1976 Specification for filling ratios and developed pressures for liquefiable and permanent gases
BS EN ISO 6504-3:2007 Paints and varnishes - Determination of hiding power - Determination of contrast ratio of light-coloured paints at a fixed spreading rate
BS EN ISO 6504-3:2019 Tracked Changes. Paints and varnishes. Determination of hiding power. Determination of hiding power of paints for masonry, concrete and interior use
BS ISO 14164:1999 Stationary source emissions - Determination of the volume flowrate of gas streams in ducts - Automated method
BS EN 14034-2:2006+A1:2011 Determination of explosion characteristics of dust clouds. Determination of the maximum rate of explosion pressure rise (dp/dt)max of dust clouds
BS EN 14034-2:2006 Determination of explosion characteristics of dust clouds - Determination of the maximum rate of explosion pressure rise (dp/dt) max of dust clouds
BS EN ISO 11073-10418:2014 Health informatics. Personal health device communication. Device specialization. International Normalized Ratio (INR) monitor
BS EN 14037-3:2003 Ceiling mounted radiant panels supplied with water at temperature below 120 °C - Rating method and evaluation of radiant thermal output
BS ISO 7270-2:2012 Rubber. Analysis by pyrolytic gas-chromatographic methods. Determination of styrene/butadiene/isoprene ratio
BS EN ISO 2062:2010 Textiles. Yarns from packages. Determination of single-end breaking force and elongation at break using constant rate of extension (CRE) tester
BS EN ISO 2062:2009 Textiles - Yarns from packages - Determination of single-end breaking force and elongation at break using constant rate of extension (CRE) tester
20/30396141 DC BS 8850. Fan Coil Unit Performance. Determination of Specific Fan Power
BS EN ISO 7751:1997+A1:2011 Rubber and plastics hoses and hose assemblies. Ratios of proof and burst pressure to maximum working pressure
BS EN 60684-3-271:2011 Flexible insulating sleeving. Specifications for individual types of sleeving. Heat-shrinkable elastomer sleevings, flame retarded, fluid resistant, shrink ratio 2:1
BS EN 60684-3-211:2007 Flexible insulating sleeving - Specifications for individual types of sleeving - Heat-shrinkable sleeving, semi-rigid polyolefin, shrink ratio 2:1
BS ISO 15064:2010 Plastics. Aromatic isocyanates for use in the production of polyurethanes. Determination of the isomer ratio in toluenediisocyanate
BS EN ISO 7751:2016 Tracked Changes. Rubber and plastics hoses and hose assemblies. Ratios of proof and burst pressure to maximum working pressure
BS 5550-5.5.1:1978 Cinematography. Common to more than one film gauge. Printing. Specification for optical printing ratios for enlargement and reduction of motion-picture film images

Society of Automotive Engineers (SAE), ratio

SAE J2749-2008 High Strain Rate Tensile Testing of Polymers
SAE J2321/3-2013 Disposable Hydraulic Filter Elements 21 MPa Collapse Pressure, Filtration Ratio = 75 at 10 Šm, 75 to 175 L/Min
SAE J2321-2-2013 Disposable Hydraulic Filter Element 190 L/Min Flow, 21 MPa Collapse Pressure, Filtration Ratio = 75 at 7 Šm
SAE J2321/3-2006 Ship Systems and Equipment Disposable Hydraulic Filter Elements 21 MPa Collapse Pressure, Filtration Ratio = 75 at 10 ?m, 75 to 175 L/Min
SAE J2321-2-2006 Ship Systems and Equipment Disposable Hydraulic Filter Element 190 L/Min Flow, 21 MPa Collapse Pressure, Filtration Ratio = 75 at 7 ?m

SAE - SAE International, ratio

SAE J2749-2017 High Strain Rate Tensile Testing of Polymers

AENOR, ratio

UNE 112016:2011 High temperature corrosion. Test for the determination of the Pilling-Bedworth ratio.
UNE 66056:1978 ESTIMATION OF THE RATIO OF TWO VARIANCES OR OF TWO STANDARD DEVIATIONS
UNE-EN ISO 7751:2017 Rubber and plastics hoses and hose assemblies - Ratios of proof and burst pressure to maximum working pressure (ISO 7751:2016)
UNE 77308:2001 Soil quality. Determination of the specific electrical conductivity.
UNE 55624:1982 SURFACE ACTIVE AGENTS. SODIUM AND POTASSIUM SILICATES TO BE USED AS RAW-MATERIALS IN DETERGENT FORMULATIONS. CALCULATION OF THE RATIO SIO2/NA2O OR SIO2/K2O

未注明发布机构, ratio

BS 2G 114:1953(1999) Specification for Direct current ratiometer indicators for aircraft
BS EN ISO 11073-10418:2014(2016) Health informatics — Personal health device communication Part 10418 : Device specialization — International Normalized Ratio (INR) monitor

US-CFR-file, ratio

CFR 20-345.307-2015 Employees’ Benefits. Part345:Employers’contributions and contribution reports. SubpartD:Contribution rates. Section345.307:Rate protest.
CFR 26-31.3101-2-2013 Internal revenue. Part31:Employment taxes and collection of income tax at source. Section31.3101-2:Rates and computation of employee tax.
CFR 26-31.3101-2-2014 Internal revenue. Part31:Employment taxes and collection of income tax at source. Section31.3101-2:Rates and computation of employee tax.

SE-SIS, ratio

SIS SS 15 51 15-1992 Petroleum products — Determination of sulfur by hydrogenolysis and ratiometric colorimetry
SIS SMS 2492-1967 V-helt pulleys. Pitch diameters and ratios. Section Y, Z, A, B, C, D, E
SIS SS-ISO 7751:1990 Rubber and plastics hoses and hose assem- blies — Ratios of proof and burst pressure to design working pressure

American Society for Testing and Materials (ASTM), ratio

ASTM E132-04 Standard Test Method for Poisson''s Ratio at Room Temperature
ASTM E132-97 Standard Test Method for Poisson''s Ratio at Room Temperature
ASTM E517-00(2010) Standard Test Method for Plastic Strain Ratio r for Sheet Metal
ASTM D4319-93(2001) Standard Test Method for Distribution Ratios by the Short-Term Batch Method (Withdrawn 2007)
ASTM E803-91(2013) Standard Test Method for Determining the L/D?Ratio of Neutron Radiography Beams
ASTM D8299-19 Standard Guide for Using Metal Ratios in Soils to Distinguish Between Anthropogenic and Natural Beryllium
ASTM E964-93(1998)e1 Standard Practice for Measuring Benefit-to-Cost and Savings-to-Investment Ratios for Buildings and Building Systems
ASTM E964-15(2020)e1 Standard Practice for Measuring Benefit-to-Cost and Savings-to-Investment Ratios for Buildings and Building Systems
ASTM E964-15 Standard Practice for Measuring Benefit-to-Cost and Savings-to-Investment Ratios for Buildings and Building Systems
ASTM D558-04 Standard Test Methods for Moisture-Density (Unit Weight) Relations of Soil-Cement Mixtures
ASTM D3720-90(2005) Standard Test Method for Ratio of Anatase to Rutile in Titanium Dioxide Pigments by X-Ray Diffraction
ASTM E2426-05 Standard Practice for Pulse Counting System Dead Time Determination by Measuring Isotopic Ratios with SIMS
ASTM D3720-90(1999) Standard Test Method for Ratio of Anatase to Rutile in Titanium Dioxide Pigments by X-Ray Diffraction
ASTM D3720-90(2011) Standard Test Method for Ratio of Anatase to Rutile in Titanium Dioxide Pigments by X-Ray Diffraction
ASTM D3720-90(2019) Standard Test Method for Ratio of Anatase to Rutile in Titanium Dioxide Pigments by X-Ray Diffraction
ASTM D6034-96 Standard Test Method (Analytical Procedure) for Determining the Efficiency of a Production Well in a Confined Aquifer from a Constant Rate Pumping Test
ASTM D6034-96(2004) Standard Test Method (Analytical Procedure) for Determining the Efficiency of a Production Well in a Confined Aquifer from a Constant Rate Pumping Test
ASTM D6212-99 Standard Test Method for Total Sulfur in Aromatic Compounds by Hydrogenolysis and Rateometric Colorimetry
ASTM D6326-98(2003) Standard Practice for The Selection of Maximum Transit-Rate Ratios and Depths for the U.S. Series of Isokinetic Suspended-Sediment Samplers
ASTM D6326-98 Standard Practice for The Selection of Maximum Transit-Rate Ratios and Depths for the U.S. Series of Isokinetic Suspended-Sediment Samplers
ASTM D6326-08 Standard Practice for The Selection of Maximum Transit-Rate Ratios and Depths for the U.S. Series of Isokinetic Suspended-Sediment Samplers
ASTM E964-02 Standard Practice for Measuring Benefit-to-Cost and Savings-to-Investment Ratios for Buildings and Building Systems
ASTM E964-06 Standard Practice for Measuring Benefit-to-Cost and Savings-to-Investment Ratios for Buildings and Building Systems
ASTM E964-06e1 Standard Practice for Measuring Benefit-to-Cost and Savings-to-Investment Ratios for Buildings and Building Systems
ASTM D6021-12(2017) Standard Test Method for Measurement of Total Hydrogen Sulfide in Residual Fuels by Multiple Headspace Extraction and Sulfur Specific Detection
ASTM E434-10(2020) Standard Test Method for Calorimetric Determination of Hemispherical Emittance and the Ratio of Solar Absorptance to Hemispherical Emittance Using Solar Simulation
ASTM E434-71(2002) Standard Test Method for Calorimetric Determination of Hemispherical Emittance and the Ratio of Solar Absorptance to Hemispherical Emittance Using Solar Simulation
ASTM E964-06(2010) Standard Practice for Measuring Benefit-to-Cost and Savings-to-Investment Ratios for Buildings and Building Systems
ASTM D6034-96(2010)e1 Standard Test Method (Analytical Procedure) for Determining the Efficiency of a Production Well in a Confined Aquifer from a Constant Rate Pumping Test
ASTM D6021-06 Standard Test Method for Measurement of Total Hydrogen Sulfide in Residual Fuels by Multiple Headspace Extraction and Sulfur Specific Detection
ASTM D6021-12 Standard Test Method for Measurement of Total Hydrogen Sulfide in Residual Fuels by Multiple Headspace Extraction and Sulfur Specific Detection
ASTM E434-10(2015) Standard Test Method for Calorimetric Determination of Hemispherical Emittance and the Ratio of Solar Absorptance to Hemispherical Emittance Using Solar Simulation

HU-MSZT, ratio

MSZ 9650/22-1974

Professional Standard - Hydroelectric Power, ratio

SD 276-1988 Technical specifications for static percentage differential protection device

Japanese Industrial Standards Committee (JISC), ratio

JIS Z 4521:2006 Method of calibration for neutron dose equivalent (rate) meters
JIS G 0580:2003 Method of electrochemical potentiokinetic reactivation ratio measurement for stainless steels
JIS A 1405:1998 Acoustics -- Determination of sound absorption coefficient and impedance in impedance tubes -- Method using standing wave ratio
JIS C 8972:1997 Testing procedure of long discharge rate lead-acid batteries for photovoltaic systems
JIS B 8615-3:2015 Multiple split-system air-conditioners and air-to-air heat pumps -- Testing and rating for performance
JIS K 1603-4:2010 Plastics -- Aromatic isocyanates for use in the production of polyurethanes -- Part 4: Determination of the isomer ratio
JIS Z 4333:2014 Portable ambient and/or directional dose equivalent (rate) meters and/or monitors for X, gamma and beta radiation
JIS K 6231-2:2007 Rubber -- Analysis by pyrolytic gas-chromatographic methods -- Part 2: Determination of styrene, butadiene, isoprene ratio
JIS H 7304:2002 Superconductivity -- Part 5: Matrix to superconductor volume ratio measurement -- Copper to superconductor volume ratio of Cu/Nb-Ti composite superconductors
JIS C 61280-2-9:2010 Fiber optic communication subsystem test procedures -- Optical signal-to-noise ratio measurement for dense wavelength-division multiplexed systems
JIS H 7304:2017 Superconductivity -- Matrix to superconductor volume ratio measurement -- Copper to superconductor volume ratio of Cu/Nb-Ti composite superconducting wires

PT-IPQ, ratio

NP 2402-1984
NP EN 12078-2000 Zero governors for gas burners and gas burning appliances
NP 4407-2001 Paints and varnishes Determination of hiding power Determination of contrast ratio (opacity) of light-coloured paints at a fixed spreading

European Committee for Electrotechnical Standardization（CENELEC）, ratio

EN 61788-5:2013 Superconductivity - Part 5: Matrix to superconductor volume ratio measurement - Copper to superconductor volume ratio of Cu/Nb-Ti composite superconducting wires
EN 61788-5:2001 Superconductivity Part 5: Matrix to superconductor volume ratio measurement - Copper to superconductor volume ratio of Cu/Nb-Ti composite superconductors

YU-JUS, ratio

JUS L.N1.046-1991 Ey?raulic fluid pofter. CylJoders. Bore and rod area ratios

RU-GOST R, ratio

GOST IEC 60255-13-2014 Electrical relays. Part 13. Percentage-differential relays
GOST 25984.1-1983 Chrysotile asbestos. Methods for determination of fractional composition and foreign matters content
GOST 8.070-2014 State system for ensuring the uniformity of measurements. State verification schedule for means measuring absorbed doses and rate of absorbed dose, dose equivalent and rate of equivalent doses of photon and electron radiation
GOST 8.209-1976 State system of ensuring the uniformity of measurements. Magnetoelectrical logometers. Methods and means of verification
GOST 25984.2-1983 Chrysotile asbestos. Method for determination of fibre average length, mass fractions of fibre of length less than 5 mm and 0,5 mm
GOST R 57183-2016 Timber structures. Test methods for determination of embedment strength and ratio foundation stiffness values for dowel type fasteners
GOST R 50591-2013 Gas-consuming thermal units. Industrial gas burners. Limiting concentration rates of NOx in combustion products
GOST 8.141-1975 State system for ensuring the uniformity of measurements. State primary standard and all-union verification schedule for means, measuring specific heat of solid bodies within temperature range of 273,15 up to 700 K
GOST 8.159-1975 State system for ensuring the uniformity of measurements. State special standard and all-union verification schedule for means measuring specific heat-conduction of solid frames in the range of temperatures 400-1800 K
GOST 8.176-1985 State system for ensuring the uniformity of measurements. State special standard and state verification schedule for means measuring specific heat-conduction of solid frames in the range of temperature 1800-3000 K
GOST 8.178-1985 State system for ensuring the uniformity of measurements. State special standard and state verification schedule for means, measuring specific heat of solids at temperature from 90 to 273,15 K
GOST R IEC 61262-6-1999 Medical electrical equipment. Characteristics of electro-optical X-ray image intensifiers. Part 6. Determination of the contrast ratio and veiling glare index

European Committee for Standardization (CEN), ratio

EN ISO 2814:2006 Paints and varnishes - Comparison of contrast ratio (hiding power) of paints of the same type and colour
EN ISO 21484:2019 Nuclear Energy - Fuel technology - Determination of the O/M ratio in MOX pellets by the gravimetric method (ISO 21484:2017)
EN 14034-2:2006 Determination of explosion characteristics of dust clouds - Part 2: Determination of the maximum rate of explosion pressure rise (dp/dt)max of dust clouds (Incorporates Amendment A1: 2011)
EN 12067-2:2004 Gas/air ratio controls for gas burners and gas burning appliances - Part 2: Electronic types
EN 12067-2:2022 Safety and control devices for burners and appliances burning gaseous or liquid fuels - Control functions in electronic systems - Part 2: Fuel/air ratio control/supervision of the electronic type
EN ISO 6504-3:2019 Paints and varnishes - Determination of hiding power - Part 3: Determination of hiding power of paints for masonry, concrete and interior use (ISO 6504-3:2019)
EN ISO 6504-3:2007 Paints and varnishes - Determination of hiding power - Part 3: Determination of contrast ratio of light-coloured paints at a fixed spreading rate (ISO 6504-3:2006)
PD CEN/TS 16233-2:2011 Foodstuffs - HPLC method for the determination of xanthophylls in fish flesh - Part 2: Identification of the enantiomer ratio of astaxanthin

CEPT - Conference Europeenne des Administrations des Postes et des Telecommunications, ratio

CEPT T/L 03-09 E-1988 Digital Hierarchy Bit Rates

BE-NBN, ratio

NBN T 03-358-1981 Sodium perborates for industrial use - Determination of rate of solution - Conductivity method
NBN B 16-507-1977

CU-NC, ratio

NC 20-06-23-1987 Medical Sciences. Determination of Blood Erythrocyte Sedimentation Ratio. Testinq Method
NC 15-76-1987 Thermotechnics. Heat Rate Values per Time Unit due to Food Products Respiration

U.S. Air Force, ratio

AIR FORCE MIL-T-25485 C NOTICE 2-1996 TRANSMITTER, THRUST, SINGLE SYNCHRO STYLE, PRESSURE RATIO, TYPE MK-2
AIR FORCE MIL-T-25485 C (2)-1992 TRANSMITTER, THRUST, SINGLE SYNCHRO STYLE, PRESSURE RATIO, TYPE MK-2
AIR FORCE MIL-T-25485 C VALID NOTICE 1-1986 TRANSMITTER, THRUST, SINGLE SYNCHRO STYLE, PRESSURE RATIO, TYPE MK-2
AIR FORCE MIL-T-25485 C-1974 TRANSMITTER, THRUST, SINGLE SYNCHRO STYLE, PRESSURE RATIO, TYPE MK-2

PL-PKN, ratio

PN T01504-24-1987 Transistors Measuring methods Forward current transfer ratio \)i2u\ at high fre?uency and transition fre?uency fr
PN C04208-1990 Raw-rubber and rubber compounds Dctcrmination ol' viscosity and rat? ol curc by thc Mooney viscometer
PN C99225-12-1989 Light sensitive photographic materials for art of printig (typography) Usable-qualitative characteristic of graphical drawing films of contrast 5
PN M51004-06-1993 Components of automatic fire detection systems. Heat sensitive detectors. Rate of rise point detectors with-out a static element
PN C99225-10-1985 Light sensitive photographic materials for art of printing (typography) Usable-qualitative characteristic of graphical orthochromatic drawing films for contrast 5

KR-KS, ratio

KS K ISO 20921-2023 Textiles — Determination of stable nitrogen isotope ratio in cotton fibres
KS X ISO/IEEE 11073-10418-2016 Health informatics — Personal health device communication — Part 10418: Device specialization: International Normalized Ratio(INR) monitor
KS I ISO 11265-2021 Soil quality — Determination of the specific electrical conductivity

Institute of Electrical and Electronics Engineers (IEEE), ratio

RP 65:2000 RP 65:2000 - SMPTE Recommended Practice - Motion-Picture Enlargement/Reduction Ratios
IEEE 292/COR-2013 Errata to Specification Format for Single-Degree-of-Freedom Spring-Restrained Rate Gyros
IEEE 292/COR-2010 Errata to Specification Format for Single-Degree-of-Freedom Spring-Restrained Rate Gyros
IEEE 517/COR-2010 Specification format guide and test procedure for single-degree-of-freedom rate-integrating gyros; Errata
IEEE 517/COR-2014 Errata to Specification Format Guide and Test Procedure for Single-Degree-of-Freedom Rate-Integrating Gyros
ISO/IEEE DIS P11073-10418/D15, June 2011 ISO/IEEE Draft Standard for Health informatics - Personal health device communication - Device specialization - International normalized ratio (INR) monitor
ISO/IEEE DIS P11073-10418 D13, January 2011 ISO/IEEE Draft Standard for Health informatics - Personal health device communication - Device specialization - International normalized ratio (INR) monitor

ITU-R - International Telecommunication Union/ITU Radiocommunication Sector, ratio

ITU-R BS.1115-1994 Low Bit-Rate Audio Coding
ITU-R BT.1380-1998 Standards for Bit Rate Reduction Coding Systems for SDTV
REPORT BT.2005-1995 Bit-Rate Reduction for Digital TV Signals (4 pp)

International Organization for Standardization (ISO), ratio

ISO 2814:1973 Paints and varnishes; Comparison of contrast ratio (hiding power) of paints of the same type and colour
ISO 21484:2008 Nuclear fuel technology - Determination of the O/M ratio in MOX pellets - Gravimetric method
ISO 4238:1976 Cinematography; Optical printing ratios for enlargement and reduction of motion-picture film images; Specifications
ISO 12721:2000 Non-destructive testing - Thermal neutron radiographic testing - Determination of beam L/D ratio
ISO 12030:2010 Tobacco and tobacco products - Non-destructive determination of strips density variation ratio in case - Ionizing radiation method
ISO 3905:1980 Paints and varnishes; Determination of contrast ratio (opacity) of light coloured paints at a fixed spreading rate (using black and white charts)
ISO 13833:2013 Stationary source emissions - Determination of the ratio of biomass (biogenic) and fossil-derived carbon dioxide - Radiocarbon sampling and determination
ISO 6504-3:2006 Paints and varnishes - Determination of hiding power - Part 3: Determination of contrast ratio of light-coloured paints at a fixed spreading rate
ISO 7270-2:2005 Rubber - Analysis by pyrolytic gas-chromatographic methods - Part 2: Determination of styrene/butadiene/isoprene ratio
ISO 7270-2:2012 Rubber - Analysis by pyrolytic gas-chromatographic methods - Part 2: Determination of styrene/butadiene/isoprene ratio
ISO/IEEE 11073-10418:2014 Health informatics - Personal health device communication - Part 10418: Device specialization - International Normalized Ratio (INR) monitor
ISO 15064:2004 Plastics - Aromatic isocyanates for use in the production of polyurethanes - Determination of the isomer ratio in toluenediisocyanate
ISO 2062:2009 Textiles - Yarns from packages - Determination of single-end breaking force and elongation at break using constant rate of extension (CRE) tester
ISO 12795:2004 Nuclear fuel technology - Uranium dioxide powder and pellets - Determination of uranium and oxygen/uranium ratio by gravimetric method with impurity correction
ISO/IEC 29157:2015 Information technology - Telecommunications and information exchange between systems - PHY/MAC specifications for short-range wireless low-rate applications in the ISM band
ISO/IEC 29157:2010 Information technology - Telecommunications and information exchange between systems - PHY/MAC specifications for short-range wireless low-rate applications in the ISM band
ISO 15064:2010 Plastics - Aromatic isocyanates for use in the production of polyurethanes - Determination of the isomer ratio in toluenediisocyanate

ZA-SANS, ratio

SANS 2814:1973 Paints and varnishes - Comparison of contrast ratio (hiding power) of paints of the same type and colour
SANS 13253:2003 Ducted air-conditioners and air-to-air heat pumps - Testing and rating for performance
SANS 12721:2004 Non-destructive testing - Thermal neutron radiographic testing - Determination of beam L/D ratio
SANS 6504-3:2007 Paints and varnishes - Determination of hiding power Part 3: Determination of contrast ratio of light-coloured paints at a fixed spreading rate

(U.S.) Ford Automotive Standards, ratio

FORD FLTM AQ 109-01-2001 SILICATE TO HYDROXIDE RATIO - HYDROPHILIC SEALER FOR CONVERSION COATING
FORD FLTM BI 101-02-2001 MEASUREMENT OF CONTRAST RATIO OF PAINT DRY HIDING POWER Replaces FLTM BI 001-02 [Replaced: FORD FLTM BI 001-02]

Shandong Provincial Standard of the People's Republic of China, ratio

DB37/T 4276-2020 Raw Material Water Ratio Standard for Beverage and Alcohol Production Enterprises in Shandong Province

Standard Association of Australia （SAA）, ratio

AS 1580.213.2:2004 Paints and related materials - Methods of test - Dry hiding power - Contrast ratio
AS/NZS 2891.14.5:1999 Methods of sampling and testing asphalt - Field density tests - Density ratio of compacted asphalt

Professional Standard - Machinery, ratio

JB/T 10250-2001 Electrical relays Part 13 Biased (percentage) differential relays

American Nuclear Society (ANS), ratio

ANS 5.4-2011 Method for calculating the fractional release of volatile fission products from oxide fuel

ATIS - Alliance for Telecommunications Industry Solutions, ratio

T1.TR.28-1994 High-Bit-Rate Digital Subscriber Line (HDSL)
T1.418-2000 High Bit Rate Digital Subscriber Line - 2nd Generation (HDSL2)
T1.418-2002 High Bit Rate Digital Subscriber Line - 2nd Generation (HDSL2) (ISSUE 2)

ES-UNE, ratio

UNE-EN ISO 21484:2019 Nuclear Energy - Fuel technology - Determination of the O/M ratio in MOX pellets by the gravimetric method (ISO 21484:2017) (Endorsed by Asociación Española de Normalización in July of 2019.)
UNE-EN ISO 11073-10418:2014 Health informatics - Personal health device communication - Part 10418: Device specialization - International Normalized Ratio (INR) monitor (ISO/IEEE 11073-10418:2014) (Endorsed by AENOR in April of 2014.)

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

GJB 698-1989 2048Kbit/s series bit rate digital interface
GJB 2078-1994 2048kbit/s series bit rate digital interface parameter test method

Danish Standards Foundation, ratio

DS/ISO 8423:1992 Sequential sampling plans for inspection by variables for percent nonconforming (known standard deviation)
DS/EN 301171 V1.1.1:1999 Video coding for low bit rate communication
DS/ISO 3905:1982 Paints and varnishes. Determination of contrast ratio (opacity) of light coloured paints at a fixed spreading rate (using black and white charts)
DS/ISO 8423/Cor.1:1993 Sequential sampling plans for inspection by variables for percent nonconforming (known standard deviation) -Technical Corrigendum 1
DS/ISO 3906:1982 Paints and varnishes. Determination of contrast ratio (opacity) of light coloured paints at a fixed spreading rate (using polyester film)

Professional Standard - Chemical Industry, ratio

HG/T 2879.4-1997 Rubber Compounding ingredients-kaolin clay-Calculation of the SiO2/Al2O3 ratio

IT-UNI, ratio

UNI 6799-1971

National Aeronautics and Space Administration (NASA), ratio

NASA-TN-D-960-1961 Effects of changing stress amplitude on the rate of fatigue-crack propagation in two aluminum alloys

Defense Logistics Agency, ratio

DLA SMD-5962-96737-1996 MICROCIRCUIT, LINEAR, PRECISION, HIGH SLEW RATE, WIDEBAND OPERATIONAL AMPLIFIER, MONOLITHIC SILICON
DLA SMD-5962-96612 REV B-1997 MICROCIRCUIT, DIGITAL, RADIATION HARDENED, CMOS, BINARY RATE MULTIPLIER, MONOLITHIC SILICON

AGMA - American Gear Manufacturers Association, ratio

04FTM9-2004 Design of a High Ratio@ Ultra Safe@ High Contact Ratio@ Double Helical Compound Planetary Transmission for Helicopter Applications

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, ratio

GB/T 7611-2016 Characteristic of the electrical interface at hierarchical bit rate for digital network
GB/T 9574-2017 Rubber and plastics hoses and hose assemblies—Ratios of proof and burst pressure to maximum working pressure

国家市场监督管理总局、中国国家标准化管理委员会, ratio

GB/T 23981.1-2019 Paints and varnishes—Determination of hiding power—Part 1: Determination of contrast ratio of white and light coloured paints
GB/T 39861-2021 Electrochemical performance test of lithium manganese oxide—Test method for discharge plateau capacity ratio and cycle life
GB/T 37207-2018 Electrochemical performance test of lithium nickel cobalt manganese oxide— Test method for discharge plateau capacity ratio and cycle life
GB/T 37054-2018 Nanotechnology—Testing ratio of anatase to rutile in nano-titanium dioxide—X-ray diffraction

American Gear Manufacturers Association, ratio

AGMA 04FTM9-2004 Design of a High Ratio, Ultra Safe, High Contact Ratio, Double Helical Compound Planetary Transmission for Helicopter Applications

BELST, ratio

STB 1643-2009 High bit rate Digital Subscriber Line. Norms of electric parameters

National Electrical Manufacturers Association（NEMA), ratio

NEMA MS 6-2008 Determination of Signal-to-Noise Ratio and Image Uniformity for Single-Channel Non-Volume Coils in Diagnostic MR Imaging

Professional Standard - Agriculture, ratio

SN/T 5035-2018 Determination of carbon stable isotope ratio of ethanol in alcoholic beverages for export Gas chromatography-stable isotope ratio mass spectrometry

AT-ON, ratio

ONORM S 1407-1976 Textile floor coverings; determination of surface pile density and pile fibre volume ratio of pile carpets

ESDU - Engineering Sciences Data Unit, ratio

ESDU 90004 C-1994 Maximum inelastic bending moments and end loads in fixed ratio for beam sections of general polygonal shape (computer program).

ITU-T - International Telecommunication Union/ITU Telcommunication Sector, ratio

ITU-T H.324 AMD 1-2005 Terminal for Low Bit-Rate Multimedia Communication (Study Group 16)
ITU-T H.263-2005 Video coding for low bit rate communication (study Group 16)

IETF - Internet Engineering Task Force, ratio

RFC 6562-2012 Guidelines for the Use of Variable Bit Rate Audio with Secure RTP

Society of Motion Picture and Television Engineers (SMPTE), ratio

SMPTE ST 2022-6-2012 Transport of High Bit Rate Media Signals over IP Networks (HBRMT)

Lithuanian Standards Office , ratio

LST EN ISO 7751:2001 Rubber and plastics hoses and hose assemblies - Ratios of proof and burst pressure to maximum working pressure (ISO 7751:1991)

European Association of Aerospace Industries, ratio

AECMA PREN 2558-1988 Aerospace Series Carbon Fibre Preimpregnates Test Method for the Determination of the Percentage of Volatile Matter Issue P 1

IN-BIS, ratio

IS 7481-1974

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

ASHRAE AC-02-13-3-2002 An Efficiency Comparison of Solar Cooling Schemes