GB/T 16781.1-2008 (English Version) PDF

Standard No.: GB/T 16781.1-2008
Language: Chinese, Available in English version
Release Date: 2008
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Status: Be replaced 2018-04
Replace By: GB/T 16781.1-2017
Latest: GB/T 16781.1-2017
Replace: GB/T 16781.1-1997

Scope: WARNING—The application of this part of GB/T 16781 may involve hazardous substances and their operation and equipment. However, this section does not address all safety issues associated with its use. It is the responsibility of the user of this section to institute appropriate safety and health practices and to determine the suitability or scope of application prior to use. This part specifies the method for the determination of mercury content in natural gas by chemical adsorption sampling method impregnated with silica gel, and the sampling pressure is up to 40MPa. This method is applicable to the determination of mercury in natural gas within the range of 0.1μg/m³ to 5000μg/m³. This method is applicable to the sample gas whose hydrogen sulfide mass in the sample volume is less than 2Omg; and the total amount of liquid hydrocarbon condensate is less than 1Og/m³ under the sampling conditions. The amount collected was determined by measuring the absorbance or fluorescence of mercury vapor at a wavelength of 253.7 nm.

GB/T 16781.1-2008 Referenced Document

GB/T 13609 Natural gas sampling guidelines*， 2017-12-29 Update
GB/T 20604 Natural gas Vocabulary
ISO 6570 Natural gas - Determination of potential hydrocarbon liquid content - Gravimetric methods

2017 GB/T 16781.1-2017 Natural gas—Determination of mercury—Part 1: Sampling of mercury by chemisorption on iodine
2008 GB/T 16781.1-2008 Natural gas.Determination of mercury.Part 1: Sampling of mercury by chemisorption on iodine
1997 GB/T 16781.1-1997 Natural gas--Determination of mercury--Atomic absorption spectrometry