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air methane
air methane, Total:27 items.
In the international standard classification, air methane involves: Air quality, Vocabularies, Alarm and warning systems, Electrical equipment for working in special conditions, Measurement of volume, mass, density, viscosity.
Professional Standard - Coal, air methane
Shanghai Provincial Standard of the People's Republic of China, air methane
- DB31/T 1090-2018 Technical specifications for online monitoring of non-methane total hydrocarbons in ambient air
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, air methane
- GB 16192-1996 Health standard for methyl chloride in the air of workplace
- GB 16218-1996 Health standard for dichloromethane in the air of workplace
- GB 16219-1996 Health standard for trichlormethane in the air of workplace
- GB/T 16078-1995 Workplace air--Determination of methyl chloride--Direct injection gas chromatographic method
- GB/T 16084-1995 Workplace air--Determination of methyl bromide--Direct injection gas chromatographic method
- GB/T 16123-1995 Workplace air--Determination of methyl iodide--1,2-naphthaquinone-4-sodium sulfonate spectrophotometric method
- GB/T 16079-1995 Workplace air--Determination of methylene chloride--Direct injection gas chromatographic method
- GB/T 16080-1995 Workplace air--Determination of trichloromethane--Direct injection gas chromatographic method
- GB/T 16081-1995 Workplace air--Determination of trichloromethane--Solvent desorption gas chromatographic method
- GB 20936.2-2009 Electrical apparatus for the detection and measurement of flammable gases.Part 2:Performance requirements for group I apparatus indicating a volume fraction up to 5% methane in air
- GB/T 20936.3-2009 Electrical apparatus for the detection and measurement of flammable gases.Part 3:Performance requirements for group I apparatus indicating a volume fraction up to 100% methane in air
Hebei Provincial Standard of the People's Republic of China, air methane
Standard Association of Australia （SAA）, air methane
Professional Standard - Hygiene , air methane
- WS/T 141-1999 Workplace air.Determination of total hydrocarbon except for methane.Gas chromatographic method
Professional Standard - Environmental Protection, air methane
- HJ 604-2017 Ambient air.Determination of total hydrocarbons, methane and nonmethane hydrocarbons.Direct injection/gas chromatography
British Standards Institution (BSI), air methane
- BS 6020-2:1981 Instruments for the detection of combustible gases - Specification for safety and performance requirements for Group I instruments reading up to 5% methane in air
- BS EN 50056:1999 Electrical apparatus for the detection and measurement of combustible gases. Performance requirements for Group I apparatus indicating up to 100% (V/V) methane in air
- BS EN 50055:1991 Electrical apparatus for the detection and measurement of combustible gases. Performance requirements for Group I apparatus indicating up to 5 % (V/V) methane in air
- BS EN 50055:1999 Electrical apparatus for the detection and measurement of combustible gases. Performance requirements for Group I apparatus indicating up to 5 % (V/V) methane in air
- BS EN 61779-2:2000 Electrical apparatus for the detection and measurement of flammable gases - Performance requirements for group I apparatus indicating a volume fraction up to 5% methane in the air
- BS EN 61779-3:2000 Electrical apparatus for the detection and measurement of flammable gases - Performance requirements for group I apparatus indicating a volume fraction up to 100% methane in air
RU-GOST R, air methane
- GOST R 52137-2003 Electrical apparatus for the detection and measurement of flammable gases. Part 2. Performance requirements for group I apparatus indicating a volume fraction up to 5 % methane in air
- GOST R 52138-2003 Electrical apparatus for the detection and measurement of flammable gases. Part 3. Performance requirements for group I apparatus indicating a volume fraction up to 100 % methane in air
CENELEC - European Committee for Electrotechnical Standardization, air methane
- EN 61779-3:2000 Electrical Apparatus for the Detection and Measurement of Flammable Gases - Part 3: Performance Requirements for Group I Apparatus Indicating a Volume Fraction Up to 100% Methane in Air