liquid measurement unit

liquid measurement unit, Total:208 items.

The international standard classification for "liquid measurement unit" includes: Natural gas , Pumps , Volumetric equipment and measurements , Petroleum products in general , Chemical analysis , Textile fabrics , Equipment for petroleum and natural gas industries .

The Chinese standard classification for "liquid measurement unit" includes: Natural gas , Pump , Petroleum products in general , Marking, packaging, transport and storage , Basic standards and general methods , Oil and gas gathering and transportation equipment , Quantity and Unit , Basic standards and general methods .

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

GB/T 24961-2010 Refrigerated light hydrocarbon fluids—Measurement of liquid levels in tanks containing liquefied gases—Float-type level gauges
GB/T 21451.3-2017 Petroleum and liquid petroleum products-Measurement of level and temperature in storage tanks by automatic methods-Part 3:Measurement of level in pressurized tanks(non-refrigerated)
GB/T 21451.1-2015 Petroleum and liquid petroleum products―Measurement of level andtemperature in storage tanks by automatic methods―Part 1:Measurement of level in atmospheric tanks
SPC GB/T 21451.2-2019 Petroleum and liquid petroleum products -- Measurement of level and temperature in storage tanks by automatic methods -- Part 2: Measurement of level in marine vessels (TEXT OF DOCUMENT IS IN CHINESE)
GB/T 33925.1-2017 Liquid pumps and installation―General terms,definitions,quantities,letter symbols and units―Part 1:Liquid pumps
GB/T 3143-1982 Color determination method of liquid chemicals(Hazen unit--Platinum-cobalt scale)
GB 3102.13-1993 Quantities and units of solid state physics
GB/T 13894-1992 and liquid petroleum products - Measurement of liquid level in tank - Manual method
GB/T 3102.13-1993 Quantities and units of solid state physics
GB/T 13894-2023 Petroleum and liquid petroleum products—Level measurement—Manual methods
GB 3143-1982 Color determination method of liquid chemicals(Hazen unit;Platinum-cobalt scale)
GB/T 13236-2011 Dip-tapes and steel strapping tapes for petroleum--Specification
GB/T 4669-1995 Textiles－Woven fabrics－Determination of mass per unit length and mass per unit area
GB/T 21451.2-2019 Petroleum and liquid petroleum products—Measurement of level and temperature in storage tanks by automatic methods—Part 2:Measurement of level in marine vessels
GB/T 24960-2010 Refrigerated light hydrocarbon fluids—Measurement of liquid levels in tanks containing liquefied gases—Electrical capacitance gauges

Group Standards of the People's Republic of China

T/CAIA YQ002-2016 Testing Method of Micro-Flow Liquid

Professional Standard - Surveying and Mapping

CH/T 1042-2018 General requirements for the quality management system of surveying and mapping units

Professional Standard - Earthquake

DB/T 25-2008 Quantities and units for earthquake observation

British Standards Institution (BSI)

BS 3680-7:1971 Measurement of liquid flow in open channels-The measurement of liquid level (stage)
BS 188:1937 Determination of the viscosity of liquids in c.g.s. units
BS 188:1970 Determination of the viscosity of liquids in c.g.s. units
BS 3680-7:2000 Measurement of liquid flow in open channels - Specification of equipment for the measurement of water level
BS 5339:1976 Method of measurement of colour in Hazen units (platinum-cobalt scale) of liquid chemical products
BS ISO 13689:2001 Refrigerated light hydrocarbon fluids — Measurement of liquid levels in tanks containing liquefied gases — Microwave - type level gauge
BS EN ISO 17769-1:2012 Liquid pumps and installation. General terms, definitions<(>, <)> quantities, letter symbols and units. Liquid pumps
BS EN ISO 4373:2008 Hydrometry - Water level measuring devices
BS ISO 80000-1:2010 Quantities and units. General
BS ISO 9123:2001 Measurement of liquid flow in open channels. Stage-fall-discharge relationships
BS ISO 31-13:1992 Quantities and units-Solid state physics
BS ISO 4266-2:2023 Petroleum and liquid petroleum products. Measurement of level and temperature in storage tanks by automatic methods - Measurement of level in marine vessels
BS 3680-9A:1971 Methods of measurement of liquid flow in open channels. Water level instruments-Specification for the installation and performance of pressure actuated liquid level measuring equipment
BS EN ISO 80000-12:2013 Quantities and units - Solid state physics
BS ISO 80000-12:2009 Quantities and units. Solid state physics
BS ISO 1100-2:1998 Measurement of liquid flow in open channels - Determination of the stage-discharge relation
BS ISO 4266-1:2023 Petroleum and liquid petroleum products. Measurement of level and temperature in storage tanks by automatic methods - Measurement of level in atmospheric tanks
23/30461342 DC BS ISO 4266-2. Petroleum and liquid petroleum products. Measurement of level and temperature in storage tanks by automatic methods - Part 2. Measurement of level in marine vessels
BS ISO 20766-17:2022 Road vehicles. Liquefied petroleum gas (LPG) fuel system components - Gas dosage unit
BS EN ISO 2286-2:1998 Rubber- or plastics-coated fabrics - Determination of roll characteristics - Methods for determination of total mass per unit area, mass per unit area of coating and mass per unit area of substrate
22/30461339 DC BS ISO 4266-1. Petroleum and liquid petroleum products. Measurement of level and temperature in storage tanks by automatic methods - Part 1. Measurement of level in atmospheric tanks
10/30214922 DC BS ISO 17769-1. Liquid pumps and installation. General terms. Definitions, quantities, letter symbols and units. Part 1. Liquid pumps
BS A 22:1947 Units of measurement in civil aviation
BS 3680-2C:1967 Measurement of liquid flow in open channels. Dilution methods. Radioisotope techniques
BS ISO 4512:2000(2001) Petroleum and liquid petroleum products — Equipment for measurement of liquid levels in storage tanks — Manual methods
04/30061005 DC ISO 17769. Liquid pumps. General terms and installation. Definitions, quantities, letter symbols and units

National Standardisation Body (ASRO)

STAS 1081-1980 LIQUID SOLUTIONS CONCENTRATION Glossary of terms and units of measure
STAS SR ISO 2211:1994 LIQUID CHEMICAL PRODUCTS - Measurement of colour in Hazen units (platinum-cobalt scale)
STAS 1080-1973 FLUID VISCOSITY Terminology and units of measure
STAS 10085/2-1986 MEASURE UNITS OUTSIDE INTERNATIONAL SYSTEM OF UNITS (SI) Conversion factors

Ente Nazionale Italiano di Unificazione

UNI S 7-1941 Liquid fuel for engines. Determination of unit weight of a liquid fuel
UNI 4452-1960 Refractory materials. Corresponding unit weight, unit volume weight, apparent looseness and water absorption determination
UNI EN ISO 17769-1:2012 Liquid pumps and installation - General terms, definitions, quantities, letter symbols and units - Part 1: Liquid pumps
UNI S 8-1941 Liquid fuel for engines. Factors that adjust unit weight based on temperature
UNI EN 12723:2002 Liquid pumps - General terms for pumps and installations - Definitions, quantities, letter symbols and units
UNI CEI ISO 31-13:2002 Quantities and units - Solid state physics

Japanese Industrial Standards Committee (JISC)

JIS B 7560:1992 Automatic level gauges for measuring the level of liquid in tanks

Bureau of Indian Standards

IS 8768-1988 Method of measuring the color of liquid chemical products in HAZEN units
IS 1890-13-1997 Quantities and units-13 Solid state physics
IS 1964-2001 Methods for Determination of Mass per Unit Lenght and Mass per Unit Area of Fabrics
IS 9620-2024 Guide for Units Used in Air Quality Measurements

Korean Agency for Technology and Standards (KATS)

KS B 5516-1994 Automatic level gauges for measuring the level of liquid in tanks
KS B 5516-2009(2019) Automatic level gauges for measuring the level of liquid in tanks
KS M ISO 10574-2014 Refrigerated light-hydrocarbon fluids－Measurement of liquid levels in tanks containing liquefied gases－Float-type level gauges
KS M ISO 13689-2003(2008) Refrigerated light hydrocarbon fluids－Measurement of liquid levelsin tanks containing liquefied gases－Microwave-type level gauge
KS M ISO 13689-2013 Refrigerated light hydrocarbon fluids－Measurement of liquid levelsin tanks containing liquefied gases－Microwave-type level gauge
KS B ISO 10574-2005 Refrigerated light-hydrocarbon fluids－Measurement of liquid levels in tanks containing liquefied gases－Float-type level gauges
KS B 5516-2009 Automatic level gauges for measuring the level of liquid in tanks
KS M ISO 2211-2003(2018) Liquid chemicals - colorimetric measurement in Hazen units (platinum-cobalt scale)
KS B ISO 18320:2022 Hydrometry — Measurement of liquid flow in open channels — Determination of the stage–discharge relationship
KS B ISO 18320-2022 Hydrometry — Measurement of liquid flow in open channels — Determination of the stage–discharge relationship
KS M 8309-2005(2018) Nickel (Ⅱ) chloride (hexahydrate) (reagent)
KS B ISO 4373-2024 Hydrometry — Water level measuring devices
KS M ISO 8309-2003(2008) Refrigerated light hydrocarbon fluids－Measurement of liquid levels in tanks containing liquefied gases－Electrical capacitance gauges
KS B ISO 8309-2003 Refrigerated light hydrocarbon fluids－Measurement of liquid levels in tanks containing liquefied gases－Electrical capacitance gauges
KS B ISO 8309:2003 Refrigerated light hydrocarbon fluids－Measurement of liquid levels in tanks containing liquefied gases－Electrical capacitance gauges
KS B ISO 8309:2005 Refrigerated light hydrocarbon fluids-Measurement of liquid levels in tanks containing liquefied gases-Electrical capacitance gauges
KS B ISO 9123-2003(2018) Measurement of liquid flow in open channels－Stage-fall-discharge relationships
KS B ISO 6420-2005(2015) Liquid flow measurement in open channels－Position fixing equipment for hydrometric boats
KS B ISO 9123-2003(2023) Measurement of liquid flow in open channels－Stage-fall-discharge relationships
KS M ISO 4266-2-2003(2023) Petroleum and liquid petroleum products - Measurement of liquid level and temperature in storage tanks by automatic method - Part 2: Liquid level measurement on marine ships
KS M ISO 4266-2-2025 Petroleum and liquid petroleum products — Measurement of level and temperature in storage tanks by automatic methods — Part 2: Measurement of level in marine vessels
KS B 5516-2009(2024) Automatic level gauges for measuring the level of liquid in tanks
KS B ISO 10574-2003 Refrigerated light-hydrocarbon fluids－Measurement of liquid levels in tanks containing liquefied gases－Float-type level gauges
KS B ISO 10574:2005 Refrigerated light-hydrocarbon fluids－Measurement of liquid levels in tanks containing liquefied gases－Float-type level gauges
KS M ISO 10574-2003(2013) Refrigerated light-hydrocarbon fluids－Measurement of liquid levels in tanks containing liquefied gases－Float-type level gauges
KS B ISO 10574:2003 Refrigerated light-hydrocarbon fluids－Measurement of liquid levels in tanks containing liquefied gases－Float-type level gauges
KS B 5516-2019 Automatic level gauges for measuring the level of liquid in tanks
KS B 5516-2024 Automatic level gauges for measuring the level of liquid in tanks
KS B ISO 4512-2005 Petroleum and liquid petroleum products－Equipment formeasurement of liquid levels in storage tanks－Manual methods
KS F 2234-2016 Measuring method for the mass per unit volume(density) and the mass per unit of surface area of polystyrene composite wood wool cement boards

Association of German Mechanical Engineers

VDI/VDE 3519 Blatt 1-1981 Level measuring of liquids and solids (bulk solids)
VDI/VDE 3519 Blatt 2-1994 Level measurement of liquids and solids (bulk solids)
VDI/VDE 3519 Blatt 1-1998 Level measurement of liquids and solids (bulk solids)
VDI/VDE 3519 Blatt 2-1993 Level measurement of liquids and solids (bulk solids)
VDI/VDE 3519 Blatt 1-2002 Level measurement of liquids and solids (bulk solids)
VDI/VDE 3519 Blatt 2-2002 Level measurement of liquids and solids (bulk solids)
VDI/VDE 3519 Blatt 2-2001 Level measurement of liquids and solids (bulk solids)
VDI/VDE 3519 Blatt 1-1984 Level measurement of liquids and solids (bulk solids)
VDI VDE 3519 Blatt 3-2012 Level measurement - Float methods
VDI/VDE 2182-1978 Transmitter for level-measurement with displacement body; description and testing
VDI VDE 3519 Blatt 1-2002 Level measurement of liquids and solids (bulk solids)
VDI VDE 3519 Blatt 4-2012 Displacer methods for level measurement
VDI/VDE 3519 Blatt 11-2012 Fuellstandmesstechnik - Radiometrische Verfahren
VDI/VDE 3519 Blatt 11-2011 Fuellstandmesstechnik - Radiometrische Verfahren
VDI/VDE 3519 BLATT 4-2012 Fuellstandmesstechnik - Verdraengerverfahren
VDI/VDE 3519 BLATT 8-2012 Fuellstandmesstechnik - Widerstandsverfahren
VDI/VDE 3519 Blatt 3-2012 Fuellstandmesstechnik - Schwimmerverfahren
VDI/VDE 3519 Blatt 4-2011 Fuellstandmesstechnik - Verdraengerverfahren
VDI/VDE 3519 Blatt 10-2012 Fuellstandmesstechnik - Waermeableitungsverfahren
VDI/VDE 3519 Blatt 10-2011 Fuellstandmesstechnik - Waermeableitungsverfahren
VDI/VDE 3519 Blatt 3-2011 Fuellstandmesstechnik - Schwimmerverfahren
VDI/VDE 3681 Blatt 2-1976 Fluidics; physical quantities@ symbols and units

GCC Standardization Organization

GSO ISO 2211:2002 Liquid chemical products - Measurement of colour in hazen units (Platinum-cobalt scale).
GSO ISO 17769-1:2013 Liquid pumps and installation -- General terms, definitions, quantities, letter symbols and units -- Part 1: Liquid pumps
GSO ISO 6420:2015 Liquid flow measurement in open channels -- Position fixing equipment for hydrometric boats
GSO ISO 4266-2:2015 Petroleum and liquid petroleum products -- Measurement of level and temperature in storage tanks by automatic methods -- Part 2: Measurement of level in marine vessels
GSO ISO 4266-1:2015 Petroleum and liquid petroleum products -- Measurement of level and temperature in storage tanks by automatic methods -- Part 1: Measurement of level in atmospheric tanks
GSO ISO 4266-1:2024 Petroleum and liquid petroleum products — Measurement of level and temperature in storage tanks by automatic methods — Part 1: Measurement of level in atmospheric tanks
OS GSO ISO 4266-1:2024 Petroleum and liquid petroleum products — Measurement of level and temperature in storage tanks by automatic methods — Part 1: Measurement of level in atmospheric tanks
GSO ISO 4266-4:2011 Petroleum and liquid petroleum products – Measurement of level and temperature in storage tanks by automatic methods – Part 4 : Measurement of temperature in atmospheric tanks

The Directorate General of Specifications and Metrology (DGSM)

OS GSO ISO 2211:2002 Liquid chemical products - Measurement of colour in hazen units (Platinum-cobalt scale).
OS GSO ISO 4266-1:2015 Petroleum and liquid petroleum products -- Measurement of level and temperature in storage tanks by automatic methods -- Part 1: Measurement of level in atmospheric tanks

International Organization for Standardization (ISO)

ISO 4373:1979 Measurement of liquid flow in open channels; Water level measuring devices
ISO 4373:2022 Hydrometry — Water level measuring devices
ISO 4373:2008 Hydrometry - Water level measuring devices
ISO 2211:1973 Liquid chemical products; Measurement of colour in Hazen units (platinum-cobalt scale)
ISO/DIS 4266-2:2023 Petroleum and liquid petroleum products — Measurement of level and temperature in storage tanks by automatic methods — Part 2: Measurement of level in marine vessels
ISO/PRF 4266-2:2023 Petroleum and liquid petroleum products — Measurement of level and temperature in storage tanks by automatic methods — Part 2: Measurement of level in marine vessels
ISO 17769-1:2012 Liquid pumps and installation - General terms, definitions, quantities, letter symbols and units - Part 1: Liquid pumps
ISO 18320:2020 Hydrometry — Measurement of liquid flow in open channels — Determination of the stage–discharge relationship
ISO 31-13:1981 Quantities and units of solid state physics
ISO 31-13:1975 Title missing - Legacy paper document
ISO 4266-1:2023 Petroleum and liquid petroleum products — Measurement of level and temperature in storage tanks by automatic methods — Part 1: Measurement of level in atmospheric tanks
ISO/CD 4266-3:2023 Petroleum and liquid petroleum products — Measurement of level and temperature in storage tanks by automatic methods — Part 3: Measurement of level in pressurized storage tanks (non-refrigerated)

Swedish Institute for Standards

SS-ISO 10574:1993 Refrigerated light-hydrocarbon fluids - Measurement of liquid levels in tanks containing liquefied gases - Float-type level gauges
SIS SS 01 61 90-1979 Quantities and units — Solid state physics
SIS 01 61 32-1971 Quantities and units. Base units, derived units, additional units
SIS SS 401 01 13-1980 Quantities and units — Logarithmic quantities and units
SIS SS 01 61 32-1985 Quantities and units - Sl-units and additional units
SS-EN 12723:2000 Liquid pumps - General terms for pumps and installations - Definitions, quantities, letter symbols and units
SS-EN ISO 17769-1:2012 Liquid pumps and installation - General terms, definitions, quantities, letter symbols and units - Part 1: Liquid pumps (ISO 17769-1:2012)
SS-ISO 4226:2008 Air quality - General aspects - Units of measurement (ISO 4226:2007, IDT)

Spanish Association for Standardization (UNE)

UNE-ISO 13689:2005 Refrigerated light hydrocarbon fluids -- Measurement of liquid levels in tanks containing liquefied gases -- Microwave-type level gauge.
UNE-ISO 10574:2005 Refrigerated light-hydrocarbon fluids -- Measurement of liquid levels in tanks containing liquefied gases -- Float-type level gauges
UNE-EN ISO 17769-1:2012 Liquid pumps and installation - General terms, definitions, quantities, letter symbols and units - Part 1: Liquid pumps (ISO 17769-1:2012) (Endorsed by AENOR in October of 2012.)
UNE-ISO 8309:2005 Refrigerated light hydrocarbon fluids -- Measurement of liquid levels in tanks containing liquefied gases -- Electrical capacitance gauges
AENOR UNE 179008:2016 Quality management system for liver transplant units.
UNE 179008:2016 Quality management system for liver transplantation units

Standards Norway

NS 9005:1981 Liquid chemical products — Measurement of colour in Hazen units (platinum-cobalt scale)
NS-ISO 4373:1995 Measurement of liquid flow in open channels — Water-level measuring devices
NS 4856:1981 Air quality - Units of measurement
NS-EN ISO 17769-1:2012 Liquid pumps and installation - General terms, definitions, quantities, letter symbols and units - Part 1: Liquid pumps (ISO 17769-1:2012)
NS-EN 12723:2000 Liquid pumps — General terms for pumps and installations — Definitions, quantities, letter symbols and units

American Society for Testing and Materials (ASTM)

ASTM D8-21 Standard Terminology Relating to Materials for Roads and Pavements
ASTM D8-16 Standard Terminology Relating to Materials for Roads and Pavements
ASTM D8-16a Standard Terminology Relating to Materials for Roads and Pavements
ASTM D899-00(2018) Standard Practice for Applied Weight Per Unit Area of Liquid Adhesive
ASTM D899-00(2013) Standard Practice for Applied Weight Per Unit Area of Liquid Adhesive
ASTM D899-00 Standard Practice for Applied Weight Per Unit Area of Liquid Adhesive
ASTM D899-00(2007) Standard Practice for Applied Weight Per Unit Area of Liquid Adhesive

European Committee for Standardization (CEN)

EN ISO 4373:2022 Hydrometry - Water level measuring devices (ISO 4373:2022)
EN ISO 4373:2008 Hydrometry - Water level measuring devices (ISO 4373:2008)
prEN 672-1992 Cork floorcoverings; determination of mass per unit volume
EN ISO 17769-1:2012 Liquid pumps and installation - General terms, definitions, quantities, letter symbols and units - Part 1: Liquid pumps (ISO 17769-1:2012)
prEN 436-1990 Resilient floorcoverings; determination of mass per unit volume

German Institute for Standardization

DIN EN ISO 4373:2009 Hydrometry - Water level measuring devices (ISO 4373:2008); English version of DIN EN ISO 4373:2009-01
DIN EN ISO 17769-1:2012-11 Liquid pumps and installation - General terms, definitions, quantities, letter symbols and units - Part 1: Liquid pumps (ISO 17769-1:2012); Trilingual version EN ISO 17769-1:2012
DIN EN ISO 17769-1 E:2010-03 Liquid pumps and installation general terms, definitions, quantities, text symbols and units Part 1: Liquid pumps (draft)
DIN 1339:1971 Unit system Magnetic quantity unit
DIN EN 12723:2000 Liquid pumps – General terms for pumps and installations – Definitions, quantities, letter symbols and units

Association Francaise de Normalisation

NF X10-326*NF EN ISO 4373:2009 Hydrometry - Water level measuring devices
NF P84-706:2019 Bentonite geosynthetics - Determination of liquid flow per unit length of coverage
NF EN ISO 17769-1:2012 Liquid pumps and installations - General terms, definitions, quantities, letter symbols and units - Part 1: Liquid pumps
NF E44-003-1*NF EN ISO 17769-1:2012 Liquid pumps and installation - General terms, definitions, quantities, letter symbols and units - Part 1 : liquid pumps
NF X10-969*NF ISO 18320:2020 Hydrometry - Measurement of liquid flow in open channels - Determination of the stage-discharge relationship
NF Q60-010:1983 Graphics Technology - Typographic unit of measurement and data sheet for typefaces
NF P62-113*NF EN ISO 23996:2012 Resilient floor coverings - Determination of density
NF P62-113:1994 Resilient floor coverings. Determination of density.

Standard Association of Australia （SAA）

AS 2900.13:1986 Quantities, units, and symbols - Quantities and units of solid state physics
AS A108:1971 Method for the determination of weight per unit volume of freshly mixedor hardened concrete (imperial units)
AS 1012 Pt.5:1983 Method for determination of mass per unit volume of fresh concrete
AS L23:1964 Method for the determination of weight per unit length and weight per unit area of woven textile fabrics

Kingdom of Bahrain Testing and Metrology Directorate

BH GSO ISO 6420:2016 Liquid flow measurement in open channels -- Position fixing equipment for hydrometric boats
BH GSO ISO 4266-2:2016 Petroleum and liquid petroleum products -- Measurement of level and temperature in storage tanks by automatic methods -- Part 2: Measurement of level in marine vessels

International Telecommunication Union (ITU)

ITU-T M Suppl. 2.3-1972 Level measurements

Gosstandart of Russia

GOST 8.417-2024 State system for ensuring the uniformity of measurements. Units of quantities
GOST 29131-1991 Liquid chemical products. Measurement of colour in Hazen units (platinum-cobalt scale)

American Petroleum Institute (API)

API MPMS 3.1B-2021 Automatic Tank Gauges for Level Measurement of Liquid Hydrocarbon Materials in Practice (Fourth Edition)
API MPMS 3.4-1995(2021) Automatic tank measurement standard Standard for liquid hydrocarbon level measurement on offshore vessels
API MPMS 3.5-1997(2013) Standard practice for automatic tank gauging (ATG) level measurement of light hydrocarbon liquids on offshore vessels

Danish Standards Foundation

DS/EN ISO 17769-1:2012 Liquid pumps and installation - General terms, definitions, quantities, letter symbols and units - Part 1: Liquid pumps
DANSK DS/EN ISO 17769-1:2012 Liquid pumps and installation - General terms, definitions, quantities, letter symbols and units - Part 1: Liquid pumps
DS/ISO 31/13:1984 Quantities and units solid state physics

Czech Standards Institute (UNMZ)

CSN 01 1303-1976 Quantities and units of fluid mechanics and thermomechanios
CSN 01 1304-1983 Quantitles and units of acoustics

Institute of Electrical and Electronics Engineers (IEEE)

IEEE 260.1-2004 Standard Letter Symbols for Units of Measurement (SI Units, Customary Inch-Pound Units, and Certain Other Units)
IEEE 260.1-1993 Letter symbols for units of measurement (SI units, customary inch-pound units, and certain other units)
IEEE 260-1978 IEEE Standard Letter Symbols for Units of Measurement (SI Units, Customary Inch-Pound Units, and Certain Other Units)
IEEE P260.1/D21, November 2023 IEEE Draft Standard Letter Symbols for Units of Measurement (SI Units, Customary Inch-Pound Units, and Certain Other Units)
IEEE P260.1/D20, May 2023 IEEE Draft Standard Letter Symbols for Units of Measurement (SI Units, Customary Inch-Pound Units, and Certain Other Units)
P260.1/D19, February 2023 IEEE Draft Standard Letter Symbols for Units of Measurement (SI Units, Customary Inch-Pound Units, and Certain Other Units)

Austrian Standards

ONORM M 2000-1981 Hydraulics and pneumatics; quantities and units
ONORM A 6431-1986 Systems of quantities, systems of units; basic quantities, basic measures

Process Industry Practices

PIP PCELI001-2018 Level Measurement Guidelines

Türk Standardları Enstitüsü

TS 2908-1977 Quantities And Units Of Solid State Physics.

American National Standards Institute （ANSI)

ANSI/IEEE Std260.1:1993 American National Standard Letter Symbols for Units of Measurement ( SI Units, Customary Inch-Pound Units, and Certain Other Units)

Society of Automotive Engineers (SAE)

SAE MAP4053-1989 UNIFORM MEASUREMENT UNITS FOR LEAKAGE RATES

Lithuanian Standards Office

LST EN ISO 17769-1:2012 Liquid pumps and installation - General terms, definitions, quantities, letter symbols and units - Part 1: Liquid pumps (ISO 17769-1:2012)

Yugoslav Association for Standardization

JUS E.K8.022-1991 Animal and vegetable fats and oils. Determination of mass per unit volume ("litre weight") in air