GB/T 16781.1-2017 Active
GB/T 16781.1-2017 Natural gas—Determination of mercury—Part 1:Sampling of mercury by chemisorption on iodine
Abstract
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.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 16781.1-2017 |
| CCS | Natural gas |
| ICS | Natural gas |
| Implement Date | 2018-04-01 |