Standard No.:	GB/T 18619.1-2002
Chinese Name:	天然气中水含量的测定 卡尔费休-库仑法
English Name:	Natural gas--Determination of water by the Karl Fischer method--Coulometric procedure
Professional Classification:	E24 Natural gas
Professional Classification:	GB National Standard
ICS Classification:	75.060
Issued by:
Issued on:	2002-01-14
Implemented on:	2002-08-01
Status:	VALID
Language:	English
File Format:	PDF
Word Count:
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This Standard specifies general requirements for the determination of water in natural gas using the Karl Fischer method.
This Standard is applicable to water concentrations between 5 mg/m3 ~5000 mg/m3. This method applies to natural gas with total content of hydrogen sulfide and mercaptan sulfur lower than 20% of water content, and other gases which do not react with Karl Fischer reagents.
Standard reference conditions of volume measurement is at temperature of 20 ℃ and a pressure of 101.325 kPa.