GB/T 16781.1-2008 Replaced National standards

GB/T 16781.1-2008 Natural gas—Determination of mercury—Part 1:Sampling of mercury by chemisorption on iodine

Publish Date: 2008-12-31 Implement Date: 2009-06-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 16781.1-2008

Standard Type: National standards

Standard Status: Replaced

is_force_gb: no

CCS Name: Natural gas

ICS Name: Natural gas

Publish Date: 2008-12-31

Implement Date: 2009-06-01

Pages: 16 pages

Scope

This section specifies the method for determining the mercury content in natural gas using iodine-impregnated silica gel chemical adsorption sampling, with a maximum sampling pressure of 40 MPa. This method is suitable for determining mercury content in natural gas ranging from 0.1 μg/m3 to 5000 μg/m3. It is applicable to samples with a hydrogen sulfide mass of less than 20 mg in the sampled volume, and samples with a total amount of liquid hydrocarbon condensate of less than 10 g/m3 under sampling conditions. The amount of mercury vapor collected is determined by measuring the absorbance or fluorescence at a wavelength of 253.7 nm.