ZH
RU
ES

Beijing unit of measurement

Beijing unit of measurement, Total:500 items.

In the international standard classification, Beijing unit of measurement involves: Metrology and measurement in general, On-board equipment and instruments, Character sets and information coding, Air quality, Quantities and units, Installations in buildings, Water quality, Energy and heat transfer engineering in general, Freight distribution of goods, Quality, Company organization and management, Vocabularies, Linear and angular measurements, Character symbols, Applications of information technology, Laboratory medicine, Internal combustion engines for road vehicles, Information technology (IT) in general, Measurement of fluid flow, Medical equipment, Physics. Chemistry, Thermodynamics and temperature measurements, Aerospace fluid systems and components, Radiocommunications, Acoustics and acoustic measurements, Measurement of force, weight and pressure, Electricity. Magnetism. Electrical and magnetic measurements, Paper production processes, Textile fibres, Services, Standardization. General rules, Burners. Boilers, Shipbuilding and marine structures in general, Products of the textile industry, Protection of and in buildings, Aircraft and space vehicles in general, Nuclear energy engineering, Petroleum products in general, Resistors, Insulating fluids, Power transmission and distribution networks, Hydraulic construction, Hydraulic energy engineering, Vibrations, shock and vibration measurements, Farming and forestry, Construction materials, Measurement of time, velocity, acceleration, angular velocity, Earthworks. Excavations. Foundation construction. Underground works, HEALTH CARE TECHNOLOGY, Elements of buildings, Fluid storage devices, Radiation protection.

NZ-SNZ, Beijing unit of measurement

NZS 6501:1982 Units of Measurement (ISO Standards Handbook 2 - 1982) (Corrigendum 1 1983)

CZ-CSN, Beijing unit of measurement

CSN 80 0002-1976 Quantities and units in textile industry
CSN 01 1300-1987 Legal measurement units
CSN 80 0006-1973 Textile piece goods and olothe-s. Basic dimensions of sales units
CSN 01 1304-1983 Quantitles and units of acoustics
CSN 01 1302-1976 Quantities and units of mechanics
CSN 26 9004-1983 Unit loads. Glossary of terms
CSN 14 0301-1975 Quantities and units of the refrigerating technique
CSN 01 1323 Z2-1998
CSN 01 1326-1976 Quantities and units of vacuum technology
CSN 26 9040-1983 Unit loads. Principles of forming
CSN 01 1307-1984 Quantities and units in physical che-mistry
CSN 01 1305-1984 Quantities and units in electrical technology
CSN 08 5003-1984 Water turbines Quantities, units, symbols
CSN 01 1301-1970 Quantities and units in science and technology
CSN ISO 31-4:1994 Quantities and units-Part 4:Heat
CSN 26 9041-1983 Unit loads. Unified modular series.
CSN 01 1301-1983 Quantities, units and equations. General rules
CSN 26 9053-1994 Palletized unit loads Water spray test
CSN 26 9041-1993 Unit loads. Unified modular series
CSN 26 9050-1993 Palettized unit loads. Mechanical testing. General principles

PT-IPQ, Beijing unit of measurement

NP 172-1958

Group Standards of the People's Republic of China, Beijing unit of measurement

T/YIIEE 10-2021 Measurement units, measurement characteristics of the method
T/ZBMS 005-2022 Integrity measurement Specification of demonstration unit for Oil fuelling station
T/ZBMS 002-2022 Integrity metrology demonstration specification for glasses making and matching
T/YJXH 0001-2023 Standards for Integrity Measurement and Evaluation of Glasses Manufacturing Units
T/SAME 003-2021 Norm for establishment of clinical laboratory of measurement integrity
T/SPPTA 002-2023 Specification for the Establishment of Gas Station Integrity Measurement Demonstration Units
T/SMA 0008-2020 Specifications for the Creation of Integrity Measurement Demonstration Units of Gas Stations
T/SOOA 190005-2020 The standard for establishing of the demonstration business unit for integrity and metrology for enterprise of refraction and fitting of eyeglasses
T/NMGYSGJSXH 001-2023 Code for evaluation of demonstration units of credit measurement in assembling glasses industry
T/STSI 5-2020 General Specification of Smart Electric Energy Measurement and Monitoring System of The Major Energy-using Enterprise
T/GDFS 2-2022 Forestry survey planning and design unit qualifications

Professional Standard - Aviation, Beijing unit of measurement

HB/Z 147-1989 Unit of measurement conversion rules

RO-ASRO, Beijing unit of measurement

STAS 9446-1985 USING OF MEASURE LEGAL UNITS OUTSIDE THE INTERNATIONAL SYSTEM OF UNITS
STAS 10093/2-1985 Metrology QUANTITIES AND UNITS OF MEASURE Terminology
SR ISO 4226:1994 Air quality General aspects. Measurement units
STAS 9488-1974 MECHANICS OF FLUIDS Terminology, symbols, units of measure
STAS 737/10-1987 International System of Units (SI) UNITS CHARACTERISTIC OF HEAT QUANTITIES
STAS 10085/2-1986 MEASURE UNITS OUTSIDE INTERNATIONAL SYSTEM OF UNITS (SI) Conversion factors
STAS 738-1960
STAS 9179-1974 Hydro technical constructions WATER COOLING PLANTS Classification, terminology, symbols and units of measure
SR ISO 31-4:1995 Quantites and units - Part 4: Heat
SR ISO 31-3:1995 Quantities and units - Part 3: Mechanics
SR ISO 31-7:1995 Quantities and units - Part 7: Acoustics
STAS 737/15-1983 International system of units (SI) UNITS CHARAGTERISTICS QUAN- TITIES OF NUCLEAR REACTIONS AND IONIZING RADIATIONS
STAS 3950-1981 GEOTECHNICS Terminology, symbols and units of measure
SR ISO 31-5:1995 Quantites and units - Part 5: Electricity and magnetism
SR ISO 31-12:1995 Quantites and units - Part 12: Characteristic numbers
STAS 6252/1-1974 TEX SYSTEM Characteristics and units of measure

U.S. Air Force, Beijing unit of measurement

AIR FORCE MS33636 REV B NOTICE 2-1998 MEASUREMENT, UNITS OF, FOR AIRCRAFT INSTRUMENTS
AIR FORCE MS33636 REV B VALID NOTICE 1-1987 MEASUREMENT, UNITS OF, FOR AIRCRAFT INSTRUMENTS
AIR FORCE MS33636 REV B-1970 MEASUREMENT, UNITS OF, FOR AIRCRAFT INSTRUMENTS

SE-SIS, Beijing unit of measurement

SIS SS 01 62 16-1989 Quantities and units — Presentation of values of quantities in diagrams and tables
SIS 01 61 32-1971 Quantities and units. Base units, derived units, additional units
SIS SS 01 61 32-1985 Quantities and units - Sl-units and additional units
SIS SS 401 01 13-1980 Quantities and units — Logarithmic quantities and units
SIS SS 01 61 26-1991 Quantities and units — Prefixes for multiple units
SIS 01 61 26-1971 Quantities and units. Prefixes for multiple units
SIS SS 01 61 56-1986 Quantities and units - Moisture
SIS 01 61 50-1970 Quantities and units. Heat
SIS 01 61 56-1970 Quantities and units. Moisture
SIS 01 62 26-1971 Quantities and units. Concise edition
SIS 01 61 46-1971 Quantities and units. Mechanics
SIS SS 25 12 69-1981 Textiles — Woven fabrics — Determination of mass per unit length and mass per unit area
SIS SS 401 01 11-1985 Quantities and units - Time-periodic quantities
SIS SS 01 61 28-1986 Quantities and units - Greek letters
SIS SS 01 61 90-1979 Quantities and units — Solid state physics
SIS 01 61 38-1971 Quantities and units. Space and time
SIS 01 61 42-1971 Quantities and units. Energy and power
SIS 01 61 11-1971 Quantities and units. List of Swedish standards
SIS 01 61 11-1979 Quantities and units — List of Swedish standards
SIS 1-1988 Quantities and units - List of Swedish standards
SIS SS 01 61 78-1978 Quantities and units. Atomic and nuclear physics
SIS 01 61 62-1971 Quaritities and units. Electricity and magnetism
SIS SEN 01 01 11-1971 Quantities and units Symbols for vectors, quantities varying with ti me and complex quantities
SIS SS 02 42 03-1990 Building physics — Mass transfer — Quantities and units
SIS 01 61 18-1971 Quantities and units. Introduction and general principles

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, Beijing unit of measurement

GB/T 17295-2008 Codes for units of measure used in international trade
GB/T 17295-1998 Codes for units of measure used in international trade
GB/T 26937-2011 Conversion unit of quantitative analysis for freight containers
GB 24789-2009 General provisions on equipping and managing of the measuring instrument of water in organization of water using
GB/T 24789-2022 General rules for equipping and managing of the water measuring instrument in water-use organization
GB/T 4669-1995 Textiles--Woven fabrics--Determination of mass per unit length and mass per unit area
GB 17167-2006 General principle for equipping and managing of the measuring instrument of energy in organization of energy using
GB/T 50597-2010 Standard for terminology,measure units and symbols in textile engineering
GB/T 50597-2019 Textile Engineering Common Terms, Units of Measurement and Symbol Standards
GB 3102.3-1993 Quantities and units of mechanics
GB 3102.4-1993 Quantities and units of heat
GB 3102.7-1993 Quantities and units of acoustics
GB/T 26719-2022 General rules for water statistics in water-use organization
GB/T 4669-2008 Textiles.Woven fabrics.Determination of mass per unit length and mass per unit area
GB/T 2900.91-2015 Electrotechnical terminology.Quantities and units
GB/T 16732-1997 Units and symbols of heating ventilation air conditioning and air cleaning equipment in building
GB/T 16732-2023 Heating, ventilation, air conditioning and air cleaning equipment in building—Units and symbols
GB/T 14559-1993 Symbols and units of variant quantities
GB 2586-1991 Calorie Units, Symbols and Conversions
GB 3102.1-1993 Quantities and units of space and time
GB 3102.5-1993 Quantities and units of electricity and magnetism
GB 3102.13-1993 Quantities and units of solid state physics

Professional Standard - Geology, Beijing unit of measurement

DZ/T 0361-2020 Geophysical survey unit of measure

Institute of Electrical and Electronics Engineers (IEEE), Beijing unit of measurement

ANSI/IEEE Std 260.1-1993 American National Standard Letter Symbols for Units of Measurement (SI Units, Customary Inch-Pound Units, and Certain Other Units)
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/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)
IEEE P260.1/D18, August 2022 IEEE Draft Standard Letter Symbols for Units of Measurement (SI Units, Customary Inch-Pound Units, and Certain Other Units)
IEEE P260.1 IEEE Draft Standard Letter Symbols for Units of Measurement (SI Units, Customary Inch-Pound Units, and Certain Other Units)
IEEE P260.1/D19, February 2023 IEEE Draft Standard Letter Symbols for Units of Measurement (SI Units, Customary Inch-Pound Units, and Certain Other Units)
IEEE Std 260.1-2004 IEEE Standard Letter Symbols for Units of Measurement (SI Customary Inch-Pound Units, and Certain Other Units)

SAE - SAE International, Beijing unit of measurement

SAE J916-1969 METRIC EQUIVALENTS OF U.S. CONVENTIONAL UNITS OF MEASURE
SAE J916-1965 METRIC EQUIVALENTS OF U.S. CONVENTIONAL UNITS OF MEASURE
SAE ARP1405-1976 UNIFORM MEASUREMENT UNITS FOR LEAKAGE RATES
SAE MAP4053A-2016 Uniform Measurement Units for Leakage Rates

Professional Standard - Urban Construction, Beijing unit of measurement

CJ/T 3069-1997 Units and symbols for city gas measurement

Professional Standard - Tobacco, Beijing unit of measurement

YC/T 148-2002 Cigarettes and cigars----Basic metric units

Gansu Provincial Standard of the People's Republic of China, Beijing unit of measurement

DB62/T 2598-2015 Calculation method of water consumption in public institutions

国家市场监督管理总局、中国国家标准化管理委员会, Beijing unit of measurement

GB/T 13234-2018 Determination of energy savings in organizations

Beijing Provincial Standard of the People's Republic of China, Beijing unit of measurement

DB11/T 1987-2022 Calculation Guidelines for Water Savings per Unit of Water Use
DB11/T 1769-2020 Water metering and statistical management specifications for water use units
DB11/T 858-2012 Technical specifications for energy measurement and evaluation of energy-consuming units
DB11/T 1408-2017 Guidelines for on-site evaluation of energy measuring instruments for energy-consuming units
DB11/T 1417-2017 Technical requirements for energy metering data collection terminal equipment for energy-consuming units
DB11/T 2060-2022 Technical guidelines for water use audit of service industry units

AR-IRAM, Beijing unit of measurement

IRAM 8-1948

BR-ABNT, Beijing unit of measurement

ABNT NBR ISO 80000-5:2016 Quantities and units Part 5- Thermodynamics

Association Francaise de Normalisation, Beijing unit of measurement

NF X02-050:1967 Main american and british measurement units.
NF X02-203:1993 Quantities and units. Mechanics.
NF X02-204:1993 Quantities and units. Heat.
NF X02-001:1993 Quantities and units. General principles.
NF X02-300-7:2009 Quantities and units - Part 7 : light.
NF X02-201:1993 Quantities and units. Space and time.
NF X06-023:1997 Application de la statistique - Sélection de plans d'échantillonnage pour le contrôle du pourcentage d'unités non conformes par mesurage
NF G07-169*NF EN 14971:2006 Textiles - Knitted fabrics - Determination of number of stitches per unit length and unit area.
NF X02-300-8:2007 Quantities and units - Part 8 : acoustics.
NF X02-300-4:2013 Quantities and units - Part 4: mechanics
NF X02-300-1*NF EN ISO 80000-1:2013 Quantities and units - Part 1 : general
NF P84-514:1994 Geomembranes. Determination of mass per unit area.
NF G07-115:1977 Textiles. Test for woven fabrics. Method of determining of mass per unit length and mass per unit area of pieces.
NF X02-300-11:2009 Quantities and units - Part 11 : characteristic numbers.
NF X02-300-5:2013 Quantities and units - Part 5: thermodynamics
NF X02-300-11:2013 Quantities and units - Part 11: characteristic numbers
NF C03-001-6*NF EN 80000-6:2008 Quantities and units - Part 6 : electromagnetism
NF X02-300-11*NF EN ISO 80000-11:2020 Quantities and units - Part 11 : characteristic numbers
NF X02-212:1992 Quantities and units. Part 12 : characteristic numbers.
NF X02-206:1993 Quantities and units. Electromagnetic radiations and optics.
NF X02-205:1994 Quantities and units. Part 5 : electricity and magnetism.
NF X02-300-4*NF EN ISO 80000-4:2019 Quantities and units - Part 4 : mechanics
NF X02-300-2*NF EN ISO 80000-2:2019 Quantities and units - Part 2 : mathematics
NF X02-300-8*NF EN ISO 80000-8:2020 Quantities and units - Part 8 : acoustics

Anhui Provincial Standard of the People's Republic of China, Beijing unit of measurement

DB34/T 1692-2012 Evaluation Requirements for Energy Measurement Demonstration Units
DB34/T 1692-2016 Evaluation Requirements for Energy Measurement Demonstration Units
DB34/T 1687-2016 Evaluation Requirements for Integrity Measurement Demonstration Units of Catering Enterprises
DB34/T 1688-2016 Evaluation Requirements for Integrity Measurement Demonstration Units of Gas Supply Enterprises
DB34/T 2611-2016 Evaluation Requirements for Integrity Measurement Demonstration Units of Medical Institutions
DB34/T 2610-2016 Evaluation Requirements for Integrity Measurement Demonstration Units of Stores and Supermarkets
DB34/T 1689-2016 Evaluation Requirements for Integrity Measurement Demonstration Units of Water Supply Enterprises
DB34/T 1690-2016 Evaluation Requirements for Integrity Measurement Demonstration Units in Bazaars
DB34/T 1384-2016 Evaluation Requirements for Integrity Measurement Demonstration Units of Power Supply Enterprises
DB34/T 2609-2016 Evaluation Requirements for Integrity Measurement Demonstration Units of Taxi Companies
DB34/T 4233-2022 Creation Specifications for Integrity Measurement Demonstration Units of Logistics Express Enterprises
DB34/T 1691-2016 Evaluation Requirements for Integrity Measurement Demonstration Units of Optical Fitting Enterprises
DB34/T 2612-2016 Evaluation requirements for integrity measurement demonstration units of quantitative packaging commodity production enterprises
DB34/T 2175-2014 Calculation method and limit determination of comprehensive energy consumption per unit output of products
DB34/T 4234-2022 Specifications for the establishment of integrity measurement demonstration units in smart farmers' markets
DB34/T 2608-2016 Evaluation Requirements for Integrity Measurement Demonstration Units of Highway Overloading Inspection Stations/Weighing Toll Stations
DB34/T 1383-2016 Evaluation Requirements for Integrity Measurement Demonstration Units of Refined Oil Business Enterprises (Gas Stations)

Hebei Provincial Standard of the People's Republic of China, Beijing unit of measurement

DB13/T 5039-2019 Integrity measurement construction specification for water supply units
DB13/T 1542-2012 Specifications for energy measurement review of key energy-consuming units

Shanxi Provincial Standard of the People's Republic of China, Beijing unit of measurement

DB14/T 2234-2020 Code for Integrity Metering Construction of Water Supply Units
DB14/T 2557.2-2023 Water Conservancy Engineering Quality Management Specification Part 2: Survey and Design Units

AT-ON, Beijing unit of measurement

ONORM A 6431-1986 Systems of quantities, systems of units; basic quantities, basic measures
ONORM A 6435-1987 Mechanics; quantities and units
ONORM A 6409-1990 Physical qucmtities; quantities, units, numerical values
ONORM A 6401-2001 Symbols for quantities and units
ONORM A 6436-1993 Heat - Quantities and units Chaleur - Grandeurs et unites
ONORM A 6434-1987 Kinematics; quantities and units
ONORM A 6433-1986 Geometry; quantities and units
ONORM S 1403-1975 Textile floor coverings; determination of mass per piece, mass per unit length and mass per unit area
ONORM A 6438-1991 Electricity and magnetism - Quantities and units
ONORM S 5001-1-1993 Acoustics - Quantities, units and definrtions - Index

German Institute for Standardization, Beijing unit of measurement

DIN 2257-1:1982 Terminology used in dimensional metrology; Units, activities, checking instruments; Metrological concepts
DIN 11901:1976-06 Laundry and dry cleaning machinery; measuring quantities, symbols, units, formulas for calculation
DIN IEC/TS 62720:2018-04*DIN SPEC 42720:2018-04 Identification of units of measurement for computer-based processing (IEC/TS 62720:2017)
DIN 5493:2013 Logarithmic quantities and units
DIN 5493:2013-10 Logarithmic quantities and units
DIN 81835:2001 Anchor chain cables - Basis for calculation units
DIN 11901:1976 Laundry and dry cleaning machinery; measuring quantities, symbols, units, formulas for calculation
DIN 41450-2:1987 Potentiometers; single turn rotary potentiometers, low power; terms and definitions, characteristics, methods of test
DIN ISO 4226:2009-02 Air quality - General aspects - Units of measurement (ISO 4226:2007)
DIN EN ISO 80000-8:2008 Quantities and units - Part 8: Acoustics (ISO 80000-8:2007, corrected 2007-08-15); English version of DIN EN ISO 80000-8:2008-01
DIN EN 14971:2006 Textiles - Knitted fabrics - Determination of number of stitches per unit length and unit area; English version of DIN EN 14971:2006-04
DIN 5493-2:1994 Logarithmic quantities and units - Part 2: Logarithmic ratios, levels in nepers and decibels
DIN EN 80000-6:2008 Quantities and units - Part 6: Electromagnetism (IEC 80000-6:2008); German version EN 80000-6:2008

YU-JUS, Beijing unit of measurement

JUS A.A1.025-1980 Quantities, unitsand symbols. Quantities and units of mechanics
JUS A.A1.026-1980 Quantities, units and symbols. Quantities and units of heat
JUS A.A1.027-1982 Ouantities, units and symbols. Quan tities and units of electricity and magnetism
JUS A.A1.023-1980 Ouantities, units and symbols. Ouantities and units of space and time
JUS A.A1.028-1982 uantities, units and symbols. Quantities and units of lightand related electromagnetic radiations
JUS A.A1.024-1980 Quantities, units and symbols. Quantities and units of periodic and related phanomena
JUS A.A1.037-1980 Ouantities, units and symbols. Conversion factors for units no longer to be used
JUS A.A1.020-1980 Ouantities, units and symbols. General principles

CL-INN, Beijing unit of measurement

INDITECNOR 2.4-14ch-1948

International Code Council, Beijing unit of measurement

ICC IZC-1998 CHAPTER 13-1998 Planned Unit Development

US-DOT, Beijing unit of measurement

DOT 23 CFR PT 657-2008 CERTIFICATION OF SIZE AND WEIGHT ENFORCEMENT

Taiwan Provincial Standard of the People's Republic of China, Beijing unit of measurement

CNS 13161-1993 Codes for Units of Measurement Used in International Trade
CNS 11296-7-1985 Quantities and Units of Acoustics
CNS 11296-3-1985 Quantities and Units of Mechanics
CNS 11296-4-1985 Quantities and Units of Heat
CNS 11296.3-1985 Quantities and Units of Mechanics
CNS 11296.4-1985 Quantities and Units of Heat
CNS 11296.7-1985 Quantities and Units of Acoustics
CNS 11296-5-1985 Quantities and Units of Electricity ancd Agnetism
CNS 11296.5-1985 Quantities and Units of Electricity ancd Agnetism
CNS 11296-1985 General Principles Concerning Quantities, Units and Symbols
CNS 11296-13-1985 Quantities and Units of Solid State Physics
CNS 11296-9-1985 Quantities and Units of Atomic and Nuclear Physics
CNS 11296-1-1985 Quantities and Units of Space and Time
CNS 11296.13-1985 Quantities and Units of Solid State Physics
CNS 11296.1-1985 Quantities and Units of Space and Time
CNS 11296.9-1985 Quantities and Units of Atomic and Nuclear Physics

National Metrological Technical Specifications of the People's Republic of China, Beijing unit of measurement

JJF 1356-2012 The Rules for the Examination of the Energy Measuring in Key Organization of Energy Using
JJF 1356.1-2023 The Rules for the Examination of the Energy Measuring in Key Organization of Energy Using—Data Center

British Standards Institution (BSI), Beijing unit of measurement

BS PD IEC/TS 62720:2017 Identification of units of measurement for computer-based processing
BS ISO 80000-7:2009 Quantities and units. Light
BS ISO 80000-7:2008 Quantities and units - Light
BS EN ISO 80000-8:2007 Quantities and units. Acoustics
BS EN ISO 80000-1:2013 Quantities and units. General
BS EN ISO 80000-4:2013 Quantities and units - Mechanics
BS EN 80000-6:2008 Quantities and units - Electromagnetism
BS EN ISO 80000-5:2013 Quantities and units. Thermodynamics
BS EN ISO 80000-11:2013 Quantities and units. Characteristic numbers
BS EN ISO 80000-2:2019 Quantities and units - Mathematics
BS EN ISO 80000-8:2020 Quantities and units - Acoustics
BS EN ISO 80000-4:2019 Quantities and units - Mechanics
BS 2471:2005 Textiles. Woven fabrics. Determination of mass per unit length and mass per unit area
BS A 22:1947 Units of measurement in civil aviation
BS ISO 80000-1:2010 Quantities and units. General
BS EN ISO 80000-5:2019 Quantities and units - Thermodynamics
PD IEC/TS 62720:2017 Tracked Changes. Identification of units of measurement for computer-based processing
BS ISO 80000-11:2009 Quantities and units. Characteristic numbers
BS EN ISO 80000-3:2013 Quantities and units - Space and time
BS EN ISO 80000-12:2013 Quantities and units - Solid state physics
BS EN ISO 80000-3:2020 Quantities and units. Space and time
BS EN ISO 80000-11:2020 Quantities and units - Characteristic numbers
21/30323438 DC BS EN IEC 80000-15. Quantities and units - Part 15. Logarithmic and related quantities, and their units
BS ISO 4226:2008 Air quality - General aspects - Units of measurement
BS ISO 4226:2007 Air quality. General aspects. Units of measurement
BS EN ISO 80000-12:2019 Quantities and units - Condensed matter physics
BS EN 764-2:2002 Pressure equipment - Quantities, symbols and units
BS EN 80000-13:2009 Quantities and units - Information science and technology
BS EN ISO 80000-10:2013 Quantities and units. Atomic and nuclear physics
BS EN 764-2:2012 Pressure equipment. Quantities, symbols and units
BS EN 80000-13:2008 Quantities and units –– Part 13: Information science and technology

IX-ICAO, Beijing unit of measurement

ICAO ANNEX 5 CHINESE SUPP AMD 2-2004 Units of Measurement to Be Used in Air and Ground Operations Fourth Edition
ICAO ANNEX 5 CHINESE SUPP AMD 1-2002 Units of Measurement to Be Used in Air and Ground Operations Fourth Edition
ICAO ANNEX 5 CHINESE SUPP-2001 Units of Measurement to Be Used in Air and Ground Operations Fourth Edition
ICAO ANNEX 5 CHINESE AMD 16-2000 Units of Measurement to Be Used in Air and Ground Operations Fourth Edition
ICAO ANNEX 5 FRENCH SUPP-2001 Unit閟 de mesure ?utiliser dans l抏xploitation en vol et au sol Quatri閙e 閐ition
ICAO ANNEX 5 CHINESE-1979 Units of Measurement to Be Used in Air and Ground Operations Fourth Edition; Incorporates Amendments 1-15

ZA-SANS, Beijing unit of measurement

CKS 367-1973 Oil filter elements (full flow design)
CKS 317-1972 Clinical thermometers

International Electrotechnical Commission (IEC), Beijing unit of measurement

IEC TS 62720:2013 Identification of units of measurement for computer-based processing
IEC TS 62720:2017 Identification of units of measurement for computer-based processing
ISO 80000-1:2022 Quantities and units - Part 1: General
IEC 60777:1983 Terminology, quantities and units concerning radiation

RU-GOST R, Beijing unit of measurement

GOST 8.417-2002 State system for ensuring the uniformity of measurements. Units of quantities
GOST 21910-1976 Metals. Helt-resistance characteristics. Names, definitions, formulae for calculations and units of quantities
GOST R 8.642-2008 State system for ensuring the uniformity of measurements. Metrological maintenance of measuring systems of units of the account of thermal energy. Main principles
GOST 24347-1980 Vibration. Designations and units of quantities
GOST R ISO 4226-2012 Air quality. General aspects. Units of measurement
GOST R 50413-1992 Revolts counters and units counters. Specifications. Testing methods

International Organization for Standardization (ISO), Beijing unit of measurement

ISO 31-4:1978 Quantities and units of heat
ISO 31-3:1978 Quantities and units of mechanics
ISO 3801:1977 Textiles; Woven fabrics; Determination of mass per unit length and mass per unit area
ISO 31-5:1979 Quantities and units of electricity and magnetism
ISO 31-7:1978 Quantities and units of acoustics
ISO 31-13:1981 Quantities and units of solid state physics
ISO 80000-7:2008 Quantities and units - Part 7: Light
ISO 31-13:1975 Title missing - Legacy paper document
ISO 31-4:1978/Amd 1:1985 Quantities and units of heat — Amendment 1
ISO 4226:2007 Air quality - General aspects - Units of measurement
ISO 4226:1993 Air quality; general aspects; units of measurement
IEC 80000-14:2008 Quantities and units - Part 14: Telebiometrics related to human physiology
ISO 80000-4:2006 Quantities and units - Part 4: Mechanics
ISO 80000-8:2007 Quantities and units - Part 8: Acoustics
ISO 31-3:1992 Quantities and units; part 3: mechanics
ISO 31-4:1992 Quantities and units; part 4: heat
ISO 31-7:1992 Quantities and units; part 7: acoustics
ISO 80000-5:2007 Quantities and units - Part 5: Thermodynamics
ISO 80000-11:2008 Quantities and units - Part 11: Characteristic numbers
ISO 80000-1:2009 Quantities and units - Part 1: General
ISO 31-9:1973 Title missing - Legacy paper document
ISO 31-3:1978/Amd 1:1985 Quantities and units of mechanics — Amendment 1
ISO 31-9:1980 Quantities and units of atomic and nuclear physics
ISO 31-1:1978 Quantities and units of space and time
ISO 31-12:1992 Quantities and units; part 12: characteristic numbers
ISO 80000-3:2019 Quantities and units — Part 3: Space and time
ISO 80000-2:2019 Quantities and units — Part 2: Mathematics
ISO 80000-4:2019 Quantities and units — Part 4: Mechanics
ISO 80000-8:2020 Quantities and units — Part 8: Acoustics

American National Standards Institute （ANSI), Beijing unit of measurement

ANSI/IEEE Std260.1:1993 American National Standard Letter Symbols for Units of Measurement ( SI Units, Customary Inch-Pound Units, and Certain Other Units)
ANSI/ASTM D4826:1997 Practice for Units of Measurements and Conversion Factors for Pulp, Paper, and Paperboard
ANSI/IEEE 260.1:2004 Standard Letter Symbols for Units of Measurement (SI Units, Customary Inch-Pound Units, and Certain Other Units)

Tianjin Provincial Standard of the People's Republic of China, Beijing unit of measurement

DB12/ 046.23-2011 Calculation method and limit of comprehensive energy consumption per unit output of products Part 23: Energy factor per unit of crude oil processing
DB12/ 046.72-2008 Calculation method and quota of comprehensive energy consumption per unit output of cigarettes
DB12/ 046.77-2008 Calculation method and quota of comprehensive energy consumption per unit of alcohol production
DB12/ 046.76-2008 Calculation method and limit of comprehensive energy consumption per unit output of beer
DB12/ 046.92-2008 Calculation method and quota of comprehensive energy consumption per unit output of yogurt
DB12/ 046.73-2008 Calculation method and quota of comprehensive energy consumption per unit output of liquor
DB12/ 046.81-2008 Calculation method and quota of comprehensive energy consumption per unit output of edible oil
DB12/ 046.91-2008 Calculation method and quota of comprehensive energy consumption per unit output of wine
DB12/ 046.42-2008 Calculation method and limit of comprehensive energy consumption per unit output of float glass
DB12/ 046.41-2008 Calculation method and quota of comprehensive energy consumption per unit output of synthetic ammonia products
DB12/ 046.71-2008 Calculation method and quota of comprehensive energy consumption per unit output of soft drink products
DB12/ 046.39-2008 Calculation method and quota of comprehensive energy consumption per unit output of propylene oxide products
DB12/ 046.36-2008 Calculation method and quota of comprehensive energy consumption per unit output of accelerator M products
DB12/ 046.01-2008 Calculation method of comprehensive energy consumption per unit output of products and general rules for setting limits
DB12/ 046.93-2008 Calculation method and quota of comprehensive energy consumption per unit output of UHT aseptic milk
DB12/ 046.38-2008 Calculation method and quota of comprehensive energy consumption per unit output of epichlorohydrin products
DB12/ 046.95-2011 Calculation method and limit of comprehensive energy consumption per unit output of products Part 95: Port throughput

HU-MSZT, Beijing unit of measurement

MSZ 1228/11-1983

Henan Provincial Standard of the People's Republic of China, Beijing unit of measurement

DB41/T 1980-2020 General requirements for energy metering management system of energy-consuming units
DB41/T 1441-2017 Specifications for the Evaluation of Integrity Measurement Demonstration Units in the Optical Industry

Guangdong Provincial Standard of the People's Republic of China, Beijing unit of measurement

DB44/T 1212-2013 General requirements for energy metering management system of energy-consuming units

工业和信息化部, Beijing unit of measurement

QC/T 1158-2022 Calculation method of comprehensive water consumption per unit output of automobile products
QC/T 1157-2022 Calculation method of comprehensive energy consumption per unit output of automobile products
JC/T 793-2019 Calculation method of thermal efficiency, unit heat consumption and unit coal consumption of tunnel drying chamber-wheel kiln system
JC/T 429-2019 Brick and tile industrial tunnel kiln-drying chamber system thermal efficiency, unit heat consumption, unit coal consumption calculation method

BE-NBN, Beijing unit of measurement

NBN 136-1951 vereniging zonder winstbejag voorheen Belgische Vereniging voor Standardisatie)
NBN X 02-103-1988 Quantities and units for mechanics
NBN X 02-104-1989 Quantities and units of heat
NBN X 02-107-1989 Quantities and units of acoustics
NBN X 02-105-1989 Quantifies and units of electricity and magnetism
NBN X 02-113-1990 Quantities and units of solid state physics

Society of Automotive Engineers (SAE), Beijing unit of measurement

SAE MAP4053-1989 UNIFORM MEASUREMENT UNITS FOR LEAKAGE RATES
SAE ARP1405-1992 Uniform Measurement Units for Leakage Rates
SAE MAP4053-2007 UNIFORM MEASUREMENT UNITS FOR LEAKAGE RATES

International Telecommunication Union (ITU), Beijing unit of measurement

ITU-R V.665-3-2015 Traffic intensity unit
ITU-R V.665-2-2000 Traffic Intensity Unit
ITU-T B.18-1993 Traffic Intensity Unit

国家技术监督局, Beijing unit of measurement

GB/T 3102.3-1993 Quantities and units of mechanics
GB/T 3102.7-1993 Quantities and units of acoustics
GB/T 3102.4-1993 Quantities and units of heat
GB/T 3102.1-1993 Quantities and units of space and time
GB/T 3102.13-1993 Quantities and units of solid state physics
GB/T 3102.5-1993 Quantities and units of electricity and magnetism

TR-TSE, Beijing unit of measurement

TS 297-1965 QUANT?TIES AND UNITS OF HEAT
TS 296-1965 OUANTITIES AND UNITS OF MECHANICS
TS 2908-1977 Quantities And Units Of Solid State Physics.
TS 294-1965 OUANTITIES AND UNITS OF SPACE AND TIME
TS 1139-1972 THE DETERMINATION OF THE WEIGHT PER UNIT OF THE SLIVERS

Professional Standard - Education, Beijing unit of measurement

JY 0343-1994 Specification for the capacity vnit demonstrator

American Society of Mechanical Engineers (ASME), Beijing unit of measurement

ASME B89.7.5-2006 Metrological Traceability of Dimensional Measurements to the SI Unit of Length

Shanghai Provincial Standard of the People's Republic of China, Beijing unit of measurement

DB31/T 227-1999 Method for calculating intergrating energy consumption of standard unit production of viscose fibre

American Society for Testing and Materials (ASTM), Beijing unit of measurement

ASTM D4826-88(1997) Standard Practice for Units of Measurement and Conversion Factors for Pulp, Paper, and Paperboard
ASTM D6475-17 Standard Test Method for Measuring Mass per Unit Area of Erosion Control Blankets
ASTM E2810-11e2 Standard Practice for Demonstrating Capability to Comply with the Test for Uniformity of Dosage Units

Canadian General Standards Board （CGSB), Beijing unit of measurement

CGSB 4.2 NO. 5.2-M87-CAN/CGSB-1987 Methodes Pour Epreuves Textiles Masse Lineique Du Fil En Unites SI

United States Navy, Beijing unit of measurement

NAVY MIL-STD-1660 VALID NOTICE 2-1991 DESIGN CRITERIA FOR AMMUNITION UNIT LOADS
NAVY MIL-STD-1660 NOTICE 1-1978 DESIGN CRITERIA FOR AMMUNITION UNIT LOADS
NAVY MIL-P-82427 C NOTICE 1-1998 POWER UNIT (FOR TORPEDO MK 46 MOD 1)
NAVY MIL-P-82427 C-1985 POWER UNIT (FOR TORPEDO MK 46 MOD 1)

Sichuan Provincial Standard of the People's Republic of China, Beijing unit of measurement

DB51/T 2246-2016 Energy Audit Specifications for Energy Consumption Units

Heilongjiang Provincial Standard of the People's Republic of China, Beijing unit of measurement

DB23/T 1798-2016 Energy Audit Specifications for Energy Consumption Units

Liaoning Provincial Standard of the People's Republic of China, Beijing unit of measurement

DB21/T 1842-2010 Energy Audit Specifications for Energy Consumption Units

Professional Standard - Military and Civilian Products, Beijing unit of measurement

WJ 1915-1990 Weapon product calculation unit code
WJ/T 9080-2013 Calculation method of comparable comprehensive energy consumption per unit output of civil explosives

VN-TCVN, Beijing unit of measurement

TCVN 4-1993 Quantities and units.Letter symbols of quantities
TCVN 5125-1990 Vibration.Symbols and units of quantities
TCVN 5967-1995 Air quality.General aspects.Units of measurement
TCVN 7870-7-2009 Quantities and units.Part 7: Light
TCVN 7870-1-2010 Quantities and units.Part 1: General
TCVN 7870-4-2007 Quantities and units.Part 4: Mechanics
TCVN 7870-8-2007 Quantities and units.Part 8: Acoustics

Korean Agency for Technology and Standards (KATS), Beijing unit of measurement

KS A ISO 31-4-2001(2006) Quantities and units－Part 4：Heat
KS A ISO 31-4:2012 Quantities and units－Part 4：Heat
KS A ISO 31-0:2010 Quantities and units－Part 0：General principles
KS I 2002-2005 Air quality－General aspects(Units of measurement)
KS I ISO 4225:2012
KS I 2002-2005(2010) Air quality－General aspects(Units of measurement)
KS I ISO 4226-2014(2019) Air quality — General aspects — Units of measurement
KS A ISO 80000-7:2010 Quantities and units-Part 7:Light
KS K 0516-2011 Determination for weight of cloth：Cut, roll or bolt method
KS A ISO 31-3:2009 Quantities and units－Part 3：Mechanics
KS A ISO 31-7:2012 Quantities and units－Part 7：Acoustics
KS A ISO 80000-1-2015(2020) Quantities and units－Part 1：General
KS A ISO 80000-8-2011(2016) Quantities and units－Part 8：Acoustics
KS A ISO 31-3-2001(2006) Quantities and units－Part 3：Mechanics
KS A ISO 31-7-2001(2006) Quantities and units－Part 7：Acoustics
KS A ISO 31-0:2012 Quantities and units－Part 0：General principles
KS A ISO 80000-7:2015 Quantities and units－Part 7：Light
KS K 0516-1963 Determination for weight of cloth：Cut, roll or bolt method
KS A ISO 80000-4:2010 Quantities and units-Part 4:Mechanics
KS A IEC 80000-6:2012 Quantities and units－Part 6：Electromagnetism
KS A ISO 80000-8:2011 Quantities and units－Part 8：Acoustics
KS K 0516-2022 Determination for weight of cloth: roll unit method
KS A ISO 80000-8:2021 Quantities and units — Part 8: Acoustics
KS A ISO 80000-4:2020 Quantities and units — Part 4: Mechanics
KS A ISO 80000-3:2020 Quantities and units — Part 3: Space and time
KS A ISO 31-12-2001(2006) Quantities and units－Part 12：Characteristic numbers
KS A ISO 80000-2:2020 Quantities and units — Part 2: Mathematics
KS A ISO 80000-8-2011(2021) Quantities and units－Part 8：Acoustics
KS A ISO 31-5-2001(2006) Quantities and units－Part 5：Electricity and magnetism
KS A ISO 80000-2:2015 Quantities and units－Part 2：Mathematical signs and symbols to be used in the natural sciences and technology
KS A ISO 80000-3:2015 Quantities and units－Part 3：Space and time
KS A ISO 80000-4:2015 Quantities and units－Part 4：Mechanics

Indonesia Standards, Beijing unit of measurement

SNI ISO 3801:2010 Textiles - Woven fabrics - Determination of mass per unit length and mass per unit area)
SNI 08-4090-1996 Test method for determination of number of tufts and/or loops per unit length and per unit area of carpets
SNI 19-1942-1990 Quantities and units of electricity and magnetism

AENOR, Beijing unit of measurement

UNE 40305:1975 MAGNITUDES AND UNITS OF APPLICATION IN TEXTILE INDUSTRY. INTERNATIONAL SYSTEM OF SI UNITS.
UNE 40339:2002 Textiles. Woven fabrics. Determination of mass per unit length and mass per unit area.
UNE-ISO 4226:2010 Air quality. General aspects. Units of measurement.

Professional Standard - Water Conservancy, Beijing unit of measurement

SL 2-2014 Quantities and units in water resources and hydropower
SL 2.2-1998 General quantities and units.Water resources and hydropower
SL 2.3-1998 Special quantities and units.Water resources and hydropower

Professional Standard - Earthquake, Beijing unit of measurement

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

Military Standards (MIL-STD), Beijing unit of measurement

DOD A-A-53323-1988 LIDDING SHEET, UNIT DOSE
DOD A-A-53436-1988 BLISTER SHEET, UNIT DOSE

Danish Standards Foundation, Beijing unit of measurement

DS/ISO 31/3:1984 Quantities and units of mechanics
DS/ISO 31/4:1984 Quantities and units heat
DS/ISO 31/7:1984 Quantities and units acoustics
DS/EN 80000-14:2009 Quantities and units - Part 14: Telebiometrics related to human physiology
DS/ISO 80000-7:2010 Quantities and units - Part 7: Light
DS/ISO 31/0:1982 General principles concerning quantities, units and symbols
DS/ISO 31/1:1984 Quantities and units space and time
DS/ISO 31/13:1984 Quantities and units solid state physics
DS/ISO 31/5:1984 Quantities and units of electricity and magnetism
DS/EN ISO 80000-4:2013 Quantities and units - Part 4: Mechanics
DS/EN ISO 80000-1:2013 Quantities and units - Part 1: General

水利部, Beijing unit of measurement

SL/T 2-2014 Water conservancy, hydropower and units

Zhejiang Provincial Standard of the People's Republic of China, Beijing unit of measurement

DB33/ 758-2015 Cotton yarn unit output comparable comprehensive power consumption limit and calculation method

Standard Association of Australia （SAA）, Beijing unit of measurement

AS B129:1968 Designs for geometric limit gauges (plain and screwed in inch units)
AS 4878.3:2001 Methods of test for coated fabrics - Determination of total mass per unit area, mass per unit area of coating and mass per unit area of substrate

Professional Standard - Nuclear Industry, Beijing unit of measurement

EJ/T 591-1991 Calculation method of unit separation power consumption
EJ/T 591-2018 Calculation method of unit separation power consumption

Lithuanian Standards Office , Beijing unit of measurement

LST ISO 3801:1998 Textiles. Woven fabrics. Determination of mass per unit length and mass per unit area

ESDU - Engineering Sciences Data Unit, Beijing unit of measurement

ESDU 72018-1972 Atmospheric data for performance calculations. Addendum: height in feet@ data in SI units.

IT-UNI, Beijing unit of measurement

Jiangsu Provincial Standard of the People's Republic of China, Beijing unit of measurement

DB32/T 2061-2018 Statistical scope and calculation method of unit energy consumption quota

Professional Standard - Electricity, Beijing unit of measurement

DL 434-1991 Regulations for implementing the legal units of measure in power plant water chemistry

TH-TISI, Beijing unit of measurement

TIS 235.7-2012 Quantities and units.part 7: light
TIS 235.8-2011 Quantities and units.part 8: acoustics
TIS 235.1-2013 Quantities and units part 1: general
TIS 235.4-2011 Quantities and units.part 4: mechanics
TIS 235.5-2011 Quantities and units.part 5: thermodynamics
TIS 235.6-2011 Quantities and units.part 6: electromagnetism
TIS 235.11-2013 Quantities and units.part 11: characteristic numbers

KR-KS, Beijing unit of measurement

KS A ISO 31-0-2010 Quantities and units－Part 0：General principles
KS A ISO 80000-4-2020 Quantities and units — Part 4: Mechanics
KS A ISO 80000-2-2020 Quantities and units — Part 2: Mathematics
KS A ISO 80000-8-2021 Quantities and units — Part 8: Acoustics
KS A ISO 80000-3-2020 Quantities and units — Part 3: Space and time

Japanese Industrial Standards Committee (JISC), Beijing unit of measurement

JIS Z 8000-7:2014 Quantities and units -- Part 7: Light
JIS Z 8000-1:2014 Quantities and units -- Part 1: General
JIS Z 8000-4:2014 Quantities and units -- Part 4: Mechanics
JIS Z 8000-8:2014 Quantities and units -- Part 8: Acoustics
JIS C 5260-4:2000 Potentiometers for use in electronic equipment -- Part 4: Sectional specification: Single-turn rotary power potentiometers
JIS Z 8000-2:2022 Quantities and units -- Part 2: Mathematics
JIS Z 8000-4:2022 Quantities and units -- Part 4: Mechanics
JIS Z 8000-8:2022 Quantities and units -- Part 8: Acoustics
JIS Z 8000-6:2014 Quantities and units -- Part 6: Electromagnetism
JIS Z 8000-5:2014 Quantities and units -- Part 5: Thermodynamics
JIS Z 8418:1971 British thermal unit -- Kilocalorie conversion tables
JIS Z 8202-0:2000 Quantities and units -- Part 0: General principles
JIS Z 8202-3:2000 Quantities and units -- Part 3: Mechanics
JIS Z 8202-4:2000 Quantities and units -- Part 4: Heat
JIS Z 8202-7:2000 Quantities and units -- Part 7: Acoustics

Xinjiang Provincial Standard of the People's Republic of China, Beijing unit of measurement

DB65/T 3609-2014 Code of practice for energy audits of energy-consuming units

IN-BIS, Beijing unit of measurement

Professional Standard - Building Materials, Beijing unit of measurement

JC/T 793-1985 The methods for the calculation of the efficiency,unit heat consumption and unit coal consumption of tunnel dryer annular kiln system
JC/T 793-2007 The methods for the calculation of the efficiency, unit heat consumption and unit coal consumption of tunnel dryer annular kiln system
JC/T 429-2007 The methods for the calculation of the efndeney, unit heat consumption and unit coal consumption of dryer annular tunnel kiln system
JC/T 429-1991 Brick and Tile Industrial Tunnel Kiln—Calculation Method of Thermal Efficiency, Unit Heat Consumption and Unit Coal Consumption of Drying Chamber System

国家建筑材料工业局, Beijing unit of measurement

JC 429-1991 Brick and Tile Industrial Tunnel--Calculation Method for Unit Heat Consumption and Unit Coal Consumption of Thermal Efficiency of Drying Room System

European Committee for Standardization (CEN), Beijing unit of measurement

EN ISO 80000-1:2022 Quantities and units - Part 1: General (ISO 80000-1:2022)
EN ISO 80000-4:2019 Quantities and units - Part 4: Mechanics (ISO 80000-4:2019)
EN ISO 80000-1:2013 Quantities and units - Part 1: General
EN ISO 80000-4:2013 Quantities and units - Part 4: Mechanics
EN 14971:2006 Textiles - Knitted fabrics - Determination of number of stitches per unit length and unit area
EN ISO 80000-5:2019 Quantities and units - Part 5: Thermodynamics (ISO 80000-5:2019)
EN ISO 80000-11:2020 Quantities and units - Part 11: Characteristic numbers (ISO 80000-11:2019)
EN ISO 80000-11:2013 Quantities and units - Part 11: Characteristic numbers (ISO 80000-11:2008)
EN ISO 80000-5:2013 Quantities and units - Part 5: Thermodynamics

PL-PKN, Beijing unit of measurement

PN J01003-02-1992 Nuclear techni?ue Terminology Quantities and units

(U.S.) Parachute Industry Association, Beijing unit of measurement

PIA-TEST METHOD-6004C-2013 LENGTH PER UNIT WEIGHT; CORDAGE
PIA-TEST METHOD-6004C-2007 LENGTH PER UNIT WEIGHT; CORDAGE

Professional Standard - Aerospace, Beijing unit of measurement

QJ 1806-1989 Specifications for quality and reliability information management of electronic components for machine design units

Jilin Provincial Standard of the People's Republic of China, Beijing unit of measurement

DB22/T 1654-2012 General technical requirements for energy metering data centralized acquisition system of energy consumption unit

未注明发布机构, Beijing unit of measurement

ISO 3801:1977/Cor 1:1983 Textiles. Woven fabrics. Determination of mass per unit length and mass per unit area. Corrigendum 1

PK-PSQCA, Beijing unit of measurement

PS 143-1961 DETERMINATION OFWEIGHT PER UNIT LENGTH AND WEIGHT PER UNIT AREA OF WOVEN OR KNITTED FABRICS

FI-SFS, Beijing unit of measurement

SFS 3192-1974

Professional Standard - Aquaculture, Beijing unit of measurement

SC/T 1088-2007 Quantities, Unites and Symbols Aquaculture