GB/T 40704-2021 Active National standards

GB/T 40704-2021 Natural gas—Determination of odorant tetrahydrothiophene—On-line sampling gas chromatography method

GB/T 40704-2021 Natural gas—Determination of odorant tetrahydrothiophene—On-line sampling gas chromatography method

Publish Date: 2021-10-11 Implement Date: 2022-05-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 40704-2021

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Natural gas

ICS Name: Natural gas

Publish Date: 2021-10-11

Implement Date: 2022-05-01

Pages: 7 pages

Scope

This document specifies the principle, reagents and materials, instruments, sampling, determination steps, calculation methods, and precision requirements for online determination of the content of tetrahydrothiophene, an odorant, in natural gas using a portable gas chromatograph with a thermal conductivity detector. This document is applicable to the determination of tetrahydrothiophene in natural gas, with a measurement range of 5 mg/m3 to 200 mg/m3.

Development Information

Word Count: 16 Thousand words Pages: 7 pages

Referenced Standards

GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 13609-1999 Natural gas—Sampling guidelines GB/T 13609-2012 Natural gas sampling guidelines GB/T 13609-2017 Natural gas sampling guidelines CJJ/T 148-2010 Technical specification for city gas odorization GB/T 13609-2025 Natural gas—Gas sampling

Related Standards

GB/T 12205-1990 Abolished

GB/T 12205-1990 Chemical analysis method for main composition of manufactured fuel gas

Publish Date: 1990-01-04

GB/T 12206-1990 Replaced

GB/T 12206-1990 Method of testing for calorific value of gas in urban areas

Publish Date: 1990-01-04

GB/T 12207-1990 Replaced

GB/T 12207-1990 Method of testing for relative density of gas in urban area

Publish Date: 1990-01-04

GB/T 12208-1990 Replaced

GB/T 12208-1990 Determination of coal tar and dust of gas in urban area

Publish Date: 1990-01-04

GB/T 12209.1-1990 Replaced

GB/T 12209.1-1990 Determination of naphthalene of gas in urban area—Picric acid method

Publish Date: 1990-01-04

GB/T 11061-1997 Replaced

GB/T 11061-1997 Natural gas—Determination of sulfur—Oxidative microcoulometry method

Publish Date: 1997-05-08