GB/T 16781.1-2017 Active National standards

GB/T 16781.1-2017 Natural gas—Determination of mercury—Part 1:Sampling of mercury by chemisorption on iodine

Publish Date: 2017-09-07 Implement Date: 2018-04-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 16781.1-2017

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Natural gas

ICS Name: Natural gas

Publish Date: 2017-09-07

Implement Date: 2018-04-01

Pages: 18 pages

Scope

This part of GB/T 16781 specifies the method of determining the mercury content in natural gas by chemical adsorption sampling with iodine-impregnated silica gel, with a maximum sampling pressure of 40 MPa. This part is applicable to the determination of mercury content in natural gas ranging from 0.1 μg/m3 to 5,000 μg/m3. This part is applicable to samples with a hydrogen sulfide mass of less than 20 mg in the sample volume; and the total amount of liquid hydrocarbon condensate in the sample gas is 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.