GB - Chinese national standards

Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 5: Determination of nitrogen,carbon dioxideand C1 to C5 and C6+ hydrocarbons for a laboratory and on-line process application using three columns

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Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 6: Determination of hydrogen helium oxygen nitrogen carbon dioxide and C1 to C8 hydrocarbons using three capillary columns

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Natural gas—Determination of composition and associated uncertainty by gas chromatography—Part 7:Rapid determination of helium content using two packed columns

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Natural gas—Determination of composition and associated uncertainty by gas chromatography—Part 8:Determination of hydrogen oxygen nitrogen carbon monoxide carbon dioxide and C1 to C5 and C6+ hydrocarbons by micro-cell thermal conductivity detector

Available languages: English, Chinese

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Natural gas - Determination of the hydrocarbon dew point - Cooled mirror method

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Test method for water vapor content of natural gas—Electronic moisture analyzers

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Class A foam extinguishing agent

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Class A foam extinguishing agent

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Available design: electronic design (pdf), Print design

Class A foam extinguishing agent

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Fixed water supply equipment used for fire-protection—Part 1:Gas pressure fixed water supply equipment used for fire-protection

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