GB/T 27894.6-2012
Natural gas.Determination of composition with defined uncertainty by gas chromatography.Part 6:Determination of hydrogen helium oxygen nitrogen carbon dioxide and C₁ to C₈ hydrocarbons using three capillary columns (English Version)

Standard No.: GB/T 27894.6-2012
Language: Chinese, Available in English version
Release Date: 2012
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 27894.6-2012

Scope: This part of GB/T 27894 provides a gas chromatographic method for the quantitative determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and hydrocarbons from C₁ to C₈ in natural gas using three capillary columns This method is applicable to the analysis of gas components whose mole fractions are within the range given in Table 1. These ranges do not indicate the detection limit, but indicate that the method used within this range can achieve the specified precision, although there will be a or more components cannot be detected, but this method is still applicable. This part of GB/T 27894 is used in conjunction with Part 1 of GB/T 27894 and Part 2 of GB/T 27894. This method is also applicable to Analysis of alternative natural gas,

GB/T 27894.6-2012 Referenced Document

ISO 6142 Gas analysis - Preparation of calibration gas mixtures - Gravimetric method; Amendment 1: Liquid introduction
ISO 6143 Gas analysis - Comparison methods for determining and checking the composition of calibration gas mixtures
ISO 6974-2 Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 2: Uncertainty calculations
ISO 7504 Gas analysis - Vocabulary*， 2015-05-01 Update

2012 GB/T 27894.6-2012 Natural gas.Determination of composition with defined uncertainty by gas chromatography.Part 6:Determination of hydrogen helium oxygen nitrogen carbon dioxide and C<下标1> to C<下标8> hydrocarbons using three capillary columns