GB/T 27894.7-2025

Active

Natural gas—Determination of composition and associated uncertainty by gas chromatography—Part 7:Rapid determination of helium content using two packed columns

天然气用气相色谱法测定组成和计算相关不确定度第7部分：用两根填充柱快速测定氦气含量

Standard Type

GBT

ICS

75.060

CCS

E 24

Status

现行

Issue Date

2025-08-29

Implementation

2026-03-01

Responsible Dept

国家标准委

Drafting Unit

N/A

🔗 Related Standards / 同类标准

GB/Z 33440-2016 General requirements for interchangeability of natural gas entering long-distance pipeline network GB/Z 35474-2017 Natural gas—Technical explanation for calculation of physical properties from composition GB/T 17281-1998 Natural gas--Determination of hydrocarbons from butane(C4) to hexadecane(C16)--Gas chromato-graphic method GB/T 18605.2-2001 Natural gas--Determination of hydrogen sulfide content--Part 2:Lead acetate reaction ratesingle photo path method GB/T 18619.1-2002 Natural gas--Determination ofwater by the Karl fischer method--Coulometric procedure GB/T 20368-2006 Production,storage and handling of Liquefied Natural Gas (LNG) GB/T 20603-2006 Refrigerated light hydrocarbon fluids - Sampling of liquefied natural gas - Continuous method GB/T 20604-2006 Natural gas - Vocabulary