GB/T 1920-1980
Abolished
HY/T 262-2018
Active
Industry standards-The ocean
HY/T 262-2018 Determination of dissolved methane in seawater—Headspace equilibrium gas chromatography method
HY/T 262-2018 Determination of dissolved methane in seawater—Headspace equilibrium gas chromatography method
Basic Information
Standard Code:
HY/T 262-2018
Standard Type:
Industry standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Methods for analyzing substances in marine environments
ICS Name:
Geology, meteorology, and hydrology
Publish Date:
2018-07-30
Implement Date:
2018-11-01
Pages:
11 pages
Scope
This standard specifies the methodological principles, analytical procedures, and result calculation for determining the concentration of dissolved methane (CH4) in seawater using headspace equilibrium gas chromatography. This standard is applicable to the determination of dissolved CH4 concentrations in offshore seawater and estuarine waters, with a measurement range of 2 nmol·L-1 to 500 nmol·L-1.
Development Information
Related Standards
GB/T 958-1989
Replaced
GB/T 958-1989 Geological symbols used for regional geological maps (1:50000)
GB/T 11615-1989
Replaced
GB/T 11615-1989 Geologic exploration standard of geothermal resources
GB/T 12329-1990
Active
GB/T 12329-1990 Karst geology terminology
GB/T 12745-1991
Replaced
GB/T 12745-1991 Static penetrometer
GB/T 12746-1991
Replaced