Gas direct measurement method

Gas direct measurement method, Total:198 items.

The international standard classification for "Gas direct measurement method" includes: Natural gas , Manganese ores , Iron ores , Chromium ores , Volumetric equipment and measurements , Animal and vegetable fats and oils , Optoelectronics. Laser equipment , Occupational safety. Industrial hygiene , Workplace atmospheres , Geology. Meteorology. Hydrology , Electrical equipment of ships and of marine structures , Copper and copper alloys , Lead, zinc, tin and their alloys , Medical Sciences and health care facilities in general , Textile fibres in general .

The Chinese standard classification for "Gas direct measurement method" includes: Natural gas , Manganese ore , Iron ore , Chrome ore , Oil and gas gathering and transportation equipment , Grease and oil processing and products , Carrier communication equipment , Hygiene, safety and labor protection , Labor sanitation , Meteorology , Mechanics Measurement , Electrical, observation/communication and navigation equipment for vessel in general , Heavy metals and their alloys analysis method , Marking, packaing, transport and storage , Chemical fibre in general .

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

GB/T 18273-2000 Petroleum and liquid petroleum products - Direct static measurements - Contents of vertical storage tands - Mass measurement by hydrostatic tank gauging
GB/T 31948-2015(英文版) Chromium ores—Determination of mercury content—Solid sampling and direct mercury analysis method
GB/T 31253-2014 Natural gas―Validation for gaseous reference materials―Direct measurement of calorific value and density
GB/T 5704.2-1985 Measuring instruments for anthropometry--Sliding caliper for anthropometry
GB/T 31949-2015(英文版) Manganese ores—Determination of mercury content—Solid sampling and direct mercury analysis method
GB/T 31743-2015 Animal and vegetable fats and oils―Determination of solid fat content by pulsed NMR―Direct method
GB/T 31947-2015(英文版) "Iron ores—Determination of mercury content—Solid sampling and direct mercury analysis method"
GB/T 31949-2015 Manganese ores―Determination of mercury content―Solid sampling and direct mercury analysis method
GB/T 31948-2015 Chromium ores―Determination of mercury content―Solid sampling and direct mercury analysis method
GB/T 24235-2009 Iron ores for shaft direct-reduction feedstocks—Determination of the low temperature reduction-disintegration index and degree of metallization
GB/T 31947-2015 Iron ores―Determination of mercury content―Solid sampling and direct mercury analysis method
GB/T 16043-1995 Workplace air--Determination of benzene--Direct injection gas chromatographic method
GB/T 23250-2009 The direct method of determining coalbed gas content in the mine
GB/T 21548-2008 Methods of measurement of the high speed semiconductor lasers directly modulated for optical fiber communication systems

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

GB/T 34286-2017 Greenhouse gas--Carbon dioxide measurement--Off-axis integrated cavity output spectroscopy method
GB/T 34287-2017 Greenhouse gas--Methane measurement--Off-axis integrated cavity output spectroscopy method

National Metrological Verification Regulations of the People's Republic of China

JJG 2064-1990 Gas Flow Measuring Instruments

国家质量监督检验检疫总局

SN/T 4697-2016 Determination of Mercury in paper based packaging―Direct mercury determining with solid injection method
SN/T 4763-2017 Determination of mercury in coal-Direct mercury analyzer with solid sampling

Professional Standard - Commodity Inspection

SN/T 3605-2013 Determination of mercury content in liquid petroleum products―Direct injection method

Group Standards of the People's Republic of China

T/NAIA 087-2021 Determination of Mercury Content in Coal-based Liquid Oil by Direct Sampling Method
T/HNNMIA 73-2023 Determination of mercury content in groundwater - Direct mercury determination method

Professional Standard-Ships

CB 1247-1994 Measurement Method for Overlapping and Grounding DC Resistance

国家市场监督管理总局、中国国家标准化管理委员会

GB/T 21548-2021 Methods of measurement of the high speed semiconductor lasers directly modulated for optical fiber communication systems
GB/T 8151.23-2020 Methods for chemical analysis of zinc concentrates—Part 23:Determination of mercury content—Solid sampling and direct mercury analysis method
GB/T 3884.20-2018 Methods for chemical analysis of copper concentrates—Part 20:Determination of mercury content—Solid sampling and direct mercury analysis method

Professional Standard - Pharmaceutical Packaging

YBB 00082003-2015 gas permeation method
YBB 0008-2003 Qiti Touguolinag Cedingfa Tests for Gas Transmission

Professional Standard - Textile

FZ/T 50014-2008 Method for the determination of residual sulphur in viscoce fibres-direct iodimetry

Professional Standard-Safe Production

AQ 1066-2008 The direct method of determining coalbed gas content in the mine

American Society for Testing and Materials (ASTM)

ASTM D7569/D7569M-10(2023) Standard Practice for Determination of Gas Content of Coal—Direct Desorption Method
ASTM D7569/D7569M-10(2015)e1 Standard Practice for Determination of Gas Content of Coal—Direct Desorption Method
ASTM D7569-10 Standard Practice for Determination of Gas Content of Coal-Direct Desorption Method
ASTM D3792-05(2009) Standard Test Method for Water Content of Coatings by Direct Injection Into a Gas Chromatograph
ASTM D3792-05 Standard Test Method for Water Content of Coatings by Direct Injection Into a Gas Chromatograph
ASTM D3792-16(2022) Standard Test Method for Water Content of Coatings by Direct Injection Into a Gas Chromatograph

British Standards Institution (BSI)

BS EN 45544-1:2000 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - General requirements and test methods
BS EN 45544-1:2015 Workplace atmospheres. Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours. General requirements and test methods
BS EN 45544-2:2015 Workplace atmospheres. Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours. Performance requirements for apparatus used for exposure measurement
BS EN 45544-3:2015 Workplace atmospheres. Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours. Performance requirements for apparatus used for general gas detection
BS EN 45544-2:2000 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Performance requirements for apparatus used for measuring concentrations in the region of limit values
BS EN 45544-4:2000 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Guide for selection, installation, use and maintenance
BS EN 45544-3:2000 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Performance requirements for apparatus used for measuring concentrations well above limit values
BS EN 45544-4:2016 Workplace atmospheres. Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours. Guide for selection, installation, use and maintenance
BS ISO 17997-2:2005 Milk - Determination of casein-nitrogen content - Direct method
BS ISO 3454:2008 Hydrometry - Direct depth sounding and suspension equipment
BS ISO 17997-2:2004 Milk. Determination of casein-nitrogen content - Direct method

YU-JUS

JUS H.F8.141-1986 Gases. Determination of argon content in argon. Indirect method
JUS H.F8.131-1986 Gases. Determination of nitrogen content. Indirect method
JUS H.F8.161-1986 Gases. Determination of hydrogen content. Indirectmethod
JUS H.F8.125-1986 Gases. Determination of oxygen content Colorimetric method
JUS H.F8.122-1986 Gases. Determination of oxygen content. Gas chromatographic method
JUS H.F8.231-1986 Gases. Determination of hydrocarbons content Gas chromatographic metbod
JUS H.F8.121-1986 Gases. Oxygen. Determination of oxygen content. Absorption method
JUS H.F8.201-1986 Gases. Determination of vvater content. Oravimetric method

Spanish Association for Standardization (UNE)

UNE-EN 45544-1:2015 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 1: General requirements and test methods (Endorsed by AENOR in March of 2015.)
UNE-EN 45544-1:2000 Workplace atmospheres. Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours. Part 1: General requirements and test methods.
UNE-EN 45544-3:2015 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 3: Performance requirements for apparatus used for general gas detection (Endorsed by AENOR in March of 20...
UNE-EN 45544-2:2015 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 2: Performance requirements for apparatus used for exposure measurement (Endorsed by AENOR in March of 2015.)
UNE-EN 45544-4:2016 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 4: Guide for selection, installation, use and maintenance (Endorsed by AENOR in June of 2016.)
UNE-EN 45544-3:2000 WORKPLACE ATMOSPHERES. ELECTRICAL APPARATUS USED FOR THE DIRECT DETECTION AND DIRECT CONCENTRATION MEASUREMENT OF TOXIC GASES AND VAPOURS. PART 3: PERFORMANCE REQUIREMENTS FOR APPARATUS USED FOR MEASURING CONCENTRATIONS WELL ABOVE LIMIT VALUES.
UNE-EN 45544-2:2000 WORKPLACE ATMOSPHERES. ELECTRICAL APPARATUS USED FOR THE DIRECT DETECTION AND DIRECT CONCENTRATION MEASUREMENT OF TOXIC GASES AND VAPOURS. PART 2: PERFORMANCE REQUIREMENTS FOR APPARATUS USED FOR MEASURING CONCENTRATIONS IN THE REGION OF LIMIT VALUES.
UNE-EN 45544-4:2001 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours -- Part 4: Guide for selection, installation, use and maintenance.
UNE 77251:2003 Air quality -- Determination of total non-methane organic compounds -- Cryogenic preconcentration and direct flame ionization detection method.

SCC

AENOR UNE-EN 45544-1:2000 Workplace atmospheres. Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapors. Part 1: General requirements and test methods.
DIN EN 45544-1 E:2014 Draft Document - Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 1: General requirements and test methods; German version prEN 45544-1:2013
CEI UNI EN 45544-3:2015 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours Part 3: Performance requirements for apparatus used for general gas detection
DANSK DS/EN 45544-1:2015 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 1: General requirements and test methods
CEI UNI EN 45544-1:2015 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours Part 1: General requirements and test methods
NS-EN 45544-1:2015 Workplace atmospheres — Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours — Part 1: General requirements and test methods
NS-EN 45544-1:1999 Workplace atmospheres — Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours — Part 1: General requirements and test methods
NS-EN 45544-3:2015 Workplace atmospheres — Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours — Part 3: Performance requirements for apparatus used for general gas detection
DANSK DS/EN 45544-3:2015 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 3: Performance requirements for apparatus used for general gas detection
NS-EN 45544-2:2015 Workplace atmospheres — Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours — Part 2: Performance requirements for apparatus used for exposure measurement
DANSK DS/EN 45544-2:2015 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 2: Performance requirements for apparatus used for exposure measurement
DIN EN 45544-3 E:2014 Draft Document - Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 3: Performance requirements for apparatus used for general gas detection; German version ...
CEI UNI EN 45544-4:2016 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours Part 4: Guide for selection, installation, use and maintenance
NS-EN 45544-4:2016 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 4: Guide for selection, installation, use and maintenance
NS-EN 45544-4:1999 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 4: Guide for selection, installation, use and maintenance
NS-EN 45544-3:1999 Workplace atmospheres — Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours — Part 3: Performance requirements for apparatus used for measuring concentrations well above limit values
VDI 3490 BLATT 12-1988 Measuring gases; test gases; production of test gases by manometric methods
NS-EN 45544-2:1999 Workplace atmospheres — Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours — Part 2: Performance requirements for apparatus used for measuring concentrations in the region of limit values
VDI 3490 BLATT 4-1980 Measuring gases; test gases; production using gravimetric methods
DANSK DS/EN 45544-4:2016 Workplace atmospheres – Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours – Part 4: Guide for selection, installation, use and maintenance
VDI/VDE 3514 BLATT 2-2013 Gas humidity measurement — measuring method
VDI 3490 BLATT 2-1980 Measuring gases; Test gases; Manufacturing processes; Overview
CEI UNI EN 45544-2:2015 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours Part 2: Performance requirements for apparatus used for exposure management
DIN EN 45544-4 E:2015 Draft Document - Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 4: Guide for selection, installation, use and maintenance; German version prEN 45544-4:2014
AENOR UNE-EN 45544-2:2000 WORKPLACE ATMOSPHERES. ELECTRICAL APPARATUS USED FOR THE DIRECT DETECTION AND DIRECT CONCENTRATION MEASUREMENT OF TOXIC GASES AND VAPOURS. PART 2: PERFORMANCE REQUIREMENTS FOR APPARATUS USED FOR MEASURING CONCENTRATIONS IN THE REGION OF LIMIT VALUES.
AENOR UNE-EN 45544-4:2001 Atmospheres in workplaces. Electrical material used for direct detection and direct measurement of the concentration of toxic gases and vapors. Part 4: Guide for selection, installation, use and maintenance.
VDI 3865 BLATT 4-2000 Measuring organic soil contamination — Gas chromatographic determination of low-boiling organic compounds in soil air by direct measurement
DIN EN 45544-2 E:2014 Draft Document - Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 2: Performance requirements for apparatus used for exposure management; German version pr...
AENOR UNE-EN 45544-3:2000 WORKPLACE ATMOSPHERES. ELECTRICAL APPARATUS USED FOR THE DIRECT DETECTION AND DIRECT CONCENTRATION MEASUREMENT OF TOXIC GASES AND VAPOURS. PART 3: PERFORMANCE REQUIREMENTS FOR APPARATUS USED FOR MEASURING CONCENTRATIONS WELL ABOVE LIMIT VALUES.
VDI 3490 BLATT 5-1980 Measuring gases; test gases; determining composition by comparison methods
DANSK DS/EN ISO 8292-1:2010 Animal and vegetable fats and oils - Determination of solid fat content by pulsed NMR - Part 1: Direct method
VDI 3865 BLATT 4-2000 Measuring organic soil contamination — Gas chromatographic determination of low-boiling organic compounds in soil air by direct measurement

Danish Standards Foundation

DS/EN 45544-1:2000 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 1: General requirements and test methods
DS/EN 45544-3:2000 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 3: Performance requirements for apparatus used for measuring concentrations well above limit values
DS/EN 45544-4:2000 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 4: Guide for selection, installation, use and maintenance
DS/EN 45544-2:2000 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 2: Performance requirements for apparatus used for measuring concentrations in the region of limit values

Lithuanian Standards Office

LST EN 45544-1-2001 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 1: General requirements and test methods
LST EN 45544-3-2001 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 3: Performance requirements for apparatus used for measuring concentrations well above limit values
LST EN 45544-2-2001 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 2: Performance requirements for apparatus used for measuring concentrations in the region of limit values
LST EN 45544-4-2001 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 4: Guide for selection, installation, use and maintenance

German Institute for Standardization

DIN EN 45544-1:2000 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 1: General requirements and test methods; German version EN 45544-1:1999
DIN EN 45544-1:2015 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 1: General requirements and test methods; German version EN 45544-1:2015
DIN EN 45544-3:2015 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 3: Performance requirements for apparatus used for general gas detection; German version EN 45544-3:2015
DIN EN 45544-2:2015 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 2: Performance requirements for apparatus used for exposure measurement; German version EN 45544-2:2015
DIN EN 45544-3:2000 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 3: Performance requirements for apparatus used for measuring concentrations well above limit values; German v
DIN EN 45544-4:2000 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 4: Guide for selection, installation, use and maintenance; German version EN 45544-4:1999
DIN EN 45544-2:2000 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 2: Performance requirements for apparatus used for measuring concentrations in the region of limit values; Ge
DIN 51869:2000 Testing of gaseous fuels and other gases - Determination of water content according to Karl Fischer - coulometric method
DIN EN 45544-4:2017 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 4: Guide for selection, installation, use and maintenance; German version EN 45544-4:2016

European Committee for Standardization (CEN)

EN 45544-1:1999 Workplace Atmospheres - Electrical Apparatus Used for the Direct Detection and Direct Concentration Measurement of Toxic Gases and Vapours - Part 1: General Requirements and Test Methods
EN 45544-1:2015 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 1: General requirements and test methods
EN 45544-3:1999 Workplace Atmospheres - Electrical Apparatus Used for the Direct Detection and Direct Concentration Measurement of Toxic Gases and Vapours - Part 3: Performance Requirements for Apparatus Used for Measuring Concentrations Well Above Limit Values
EN 45544-4:1999 Workplace Atmospheres - Electrical Apparatus Used for the Direct Detection and Direct Concentration Measurement of Toxic Gases and Vapours - Part 4: Guide for Selection, Installation, Use and Maintenance
EN 45544-3:2015 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 3: Performance requirements for apparatus used for general gas detection

Standard Association of Australia （SAA）

AS 3980:1999 Guide to the determination of gas content of coal - Direct desorption method
AS 3980:1999(R2013) Guidelines for Determination of Coal Gas Content Direct Desorption Method

International Organization for Standardization (ISO)

ISO 11256:1998 Iron ore pellets - Determination of clustering of feedstock for direct reduction by gas reforming processes
ISO 11257:1998 Iron ores - Determination of disintegration and metallization of feedstock for direct reduction by gas reforming processes
ISO 11258:1999 Iron ores - Determination of reducibility and metallization of feedstock for direct reduction by gas reforming processes
ISO 1015:1992 Brown coals and lignites; determination of moisture content; direct volumetric method
ISO 3454:2008 Hydrometry - Direct depth sounding and suspension equipment
ISO 1015:1975 Brown coals and lignites — Determination of moisture content — Direct volumetric method
ISO 9931:1991 Coal; sampling of pulverized coal conveyed by gases in direct fire coal systems

Association Francaise de Normalisation

NF X43-246-1:2000 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 1 : general requirements and test methods.
NF X43-246-1*NF EN 45544-1:2015 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 1 : general requirements and test methods
NF X43-246-3*NF EN 45544-3:2015 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 3 : performance requirements for apparatus used for general gas detection
NF X43-246-2*NF EN 45544-2:2015 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 2 : performance requirements for apparatus used for exposure measurement
NF X10-325:1986 Liquid flow measurement in open channels. Direct depth sounding and suspension equipment.
NF EN 45544-4:2016 Workplace atmospheres - Electrical equipment used for the direct detection of toxic vapors and gases and the direct measurement of their concentration - Part 4: guide to selection, installation, use and maintenance
NF X43-246-2:2000 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 2 : performance requirements for apparatus used for measuring concentrations in the region of limit values.
NF X43-246-4*NF EN 45544-4:2016 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 4 : guide for selection, installation, use and maintenance
NF X43-246-4:2000 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 4 : guide for selection, installation, use and maintenance.
NF X43-246-3:2000 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 3 : performance requirements for apparatus used for measuring concentrations well above limit values.
NF EN 61079-2:1994 Measurement methods on satellite broadcast receivers in the 12 GHz band - Part 2: electrical measurements on tuners for direct satellite broadcasting
XP E03-110:2003 Geometrical product specification (GPS) - Screw threads - Direct measuring methods
NF A72-120:1973 Large diameter pipes and valves for gaseous fluids. Flange connections PN 6.

VDE - VDE Verlag GmbH@ Berlin@ Germany

VDE 0400-22-1-2015 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 1: General requirements and test methods; German version EN 45544-1:2015
VDE 0400-22-2-2015 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 2: Performance requirements for apparatus used for exposure measurement; German version EN 45544-2:2015
VDE 0400-22-3-2015 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 3: Performance requirements for apparatus used for general gas detection; German version EN 45544-3:2015
VDE 0400-22-4-2000 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 4: Guide for selection@ installation@ use and maintenance; German version EN 45544-4:1999
VDE 0400-22-4-2017 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 4: Guide for selection@ installation@ use and maintenance; German version EN 45544-4:2016
VDE 0400-22-4-2015 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 4: Guide for selection@ installation@ use and maintenance; German version prEN 45544-4:2014

Korean Agency for Technology and Standards (KATS)

KS B 0546-2016 Methods of mesurement for gas Concentration in welding environment
KS B 0546-2021 Methods of measurement for gas concentration in welding environment
KS E ISO 11257:2008 Iron ores for shaft direct-reduction feedstocks-Determination of the low-temperature reduction-disintegration index and degree of metallization
KS M ISO 11223-2014(2019) Petroleum and liquid petroleum products — Direct static measurements — Measurement of content of vertical storage tanks by hydrostatic tank gauging
KS E ISO 11256:2008 Iron ore pellets for shaft direct-reduction feedstocks-Determination of the clustering index
KS E ISO 1015:2002 Brown coals and lignites－Determination of moisture content－Direct gravimetric method
KS E ISO 11256:2017 Iron ore pellets for shaft direct-reduction feedstocks－Determination of the clustering index

GSO

GSO ASTM D7314:2014 Standard Practice for Determination of the Heating Value of Gaseous Fuels using Calorimetry and On-line/At-line Sampling
GSO OIML R105:2002 DIRECT MASS FLOW MEASURING SYSTEMS FOR QUANTITIES OF LIQUIDS
OS GSO OIML R105:2002 DIRECT MASS FLOW MEASURING SYSTEMS FOR QUANTITIES OF LIQUIDS
GSO ASTM D7164:2014 Standard Practice for On-line/At-line Heating Value Determination of Gaseous Fuels by Gas Chromatography

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

ASHRAE 133-2008 Method of Testing Direct Evaporative Air Coolers
ASHRAE 133-2001 Method of Testing Direct Evaporative Air Coolers
ASHRAE 41.7-1984 Method of Test for Measurement of Flow of Gas
ASHRAE 41.7-2015 Standard Methods for Gas Flow Measurement
ASHRAE 41.7-2021 Standard Methods for Gas Flow Measurement

Japanese Industrial Standards Committee (JISC)

JIS Z 3952:2005 Methods of measurement for gas concentration in welding environment
JIS K 0315:2022 Method for measuring reducing trace gases by semiconductor-type trace gas measuring equipment

European Committee for Electrotechnical Standardization（CENELEC）

EN 45544-2:2015 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 2: Performance requirements for apparatus used for exposure measurement
EN 45544-2:1999 Workplace Atmospheres - Electrical Apparatus Used for the Direct Detection and Direct Concentration Measurement of Toxic Gases and Vapours - Part 2:Performance Requirements for Apparatus Used for Measuring Concentrations in the Region of Limit Values
EN 45544-4:2016 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 4: Guide for selection@ installation@ use and maintenance
HD 148 S2-1977 Methods for the Measurement of Direct Interelectrode Capacitances of Electronic Tubes and Valves

SE-SIS

SIS SS IEC 107:1989 Electrical measuring instruments — Direct acting indicating analogue electrical measuring instruments and their accessories
SIS SS IEC 51:1988 Electrical measuring instruments — Direct acting indicating analogue electrical measuring instruments and their accessories
SIS SS-EN 60 051-1991 Electrical measuring instruments — Direct acting indicating analogue electrical measuring instruments and their accessories
SIS SS-ISO 8761:1990 Work-place air — Determination of mass concentration of nitrogen dioxide — Method using detector tubes for short- term sampling with direct indication
SIS SS-ISO 8760:1990 Work-place air — Determination of mass concentration of carbon monoxide — Method using detector tubes for short-term sampling with direct indication

RU-GOST R

GOST 20398.1-1974 Field-effect transistors. Shot-circuit forward transfer admittance measurement technique
GOST 8.464-1982 State system for ensuring the uniformity of measurements. Gas mass flow rate. Calculated relations of indirect methods of measurements
GOST R 8.736-2011 State system for ensuring the uniformity of measurements. Multiple direct measurements. Methods of measurement results processing. Main principles
GOST R 8.783-2012 State system for ensuring the uniformity of measurements. Automobile gasoline. Direct method of lead, iron and manganese determination
GOST 8.207-1976 State system for ensuring the uniformity of measurements. Direct measurements with multiple observations. Methods of processing the results of observations. Basic principles

PT-IPQ

NP 1014-1987 Solid fuel. Measurement of Moisture in Coal Sample Analysis by Direct Volumetric Method

VDI - Verein Deutscher Ingenieure

VDI/VDE 3514 Blatt 2-2011 Measurement of humidity - Methods of measurement
VDI 3865 Blatt 4-1999 Measurement of organic soil pollutants - Gas-chromatographic determination of volatile organic compounds in soil gas through direct measurement
VDI 2466 Blatt 1-2007 Gaseous emission measurement - Measurement of methane - Manual gas chromatography method

IT-UNI

UNI 4360-1959 Chemical analysis methods of metallic materials. Determination of total carbon in electrolytic manganese and thermal manganese. Direct combustion method. gas volume measurement method

GOSTR

GOST R 59176-2020 Solid mineral fuels. Determination of mercury by direct combustion

American National Standards Institute （ANSI)

ANSI/ASHRAE 133-2008 Method of Testing Direct Evaporative Air Coolers
ANSI/ASHRAE 41.7-2021 Standard Methods for Gas Flow Measurement
ANSI/ASHRAE 41.7-2015 Standard Methods for Gas Flow Measurement
ANSI Z83.18-2012 Non-Recirculating Direct Gas-Fired Industrial Air Heaters
ANSI/ASHRAE Standard 133-2015 Method of Testing Direct Evaporative Air Coolers
ANSI/ASHRAE 133-2015 Method of Testing Direct Evaporative Air Coolers

South African Bureau of Standard

SANS 3001-AG2:2009 Civil engineering test methods Part AG2: Determination of the average least dimension of aggregates by direct measurement

RO-ASRO

STAS 9280-1987 MEASURING OF GAS FLOW Measuring methods and means
STAS SR ISO 1015:1994 Brown coals and lignites. Determination of moisture content. Direct volumetric method

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

ASHRAE 133-2015 Method of Testing Direct Evaporative Air Coolers

Association of German Mechanical Engineers

DVS 0801-2002 "Volume measurement of industrial gases for welding, cutting and allied working methods"
DVS 0801-1973 "Volume measurement of industrial gases for welding, cutting and allied working methods"
VDI 2466 Blatt 1-2008 Gaseous emission measurement - Measurement of methane - Manual gas chromatography method

TR-TSE

TS 2971-1978 Methods For The Measurement Of Direct Interelectrode Capacitances Of Electronic Tubes And Valves

Others: Gas direct measurement method,direct measurement,gas measurement