GB/T 27894.5-2012
Natural gas-Determination of composition with defined uncertainty by gas chromatography.Part 5:Determination of nitrogen,carbon dioxideand C1 to C5and C6+hydrocarbons for a laboratory and on-line process application using thr (English Version)

Standard No.: GB/T 27894.5-2012
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 27894.5-2012

Scope: This part of GB/T 27894 provides a gas chromatographic method for the quantitative analysis of natural gas composition using a three-column system. This method is applicable to a certain range of natural gas, and performs online automatic calibration on conventional gas samples that do not contain any hydrocarbon condensate/anhydrous. This method is applicable to gas components whose mole fractions are within the range specified in Table 1. These ranges do not represent detection limits, but indicate that the specified precision can be achieved using the method within these ranges. Although one or more components in the sample cannot be detected, the method can still be applied. This section is used in conjunction with Parts 1 and 2 of GB/T 27894.

GB/T 27894.5-2012 Referenced Document

GB/T 14850-2008 Gas analysis.Vocabulary
GB/T 27894.1-2011 Natural gas.Determination of composition with defined uncertainty by gas chromatogramphy.Part 1:Guidelines for tailored analysis
ISO 6974-2 Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 2: Uncertainty calculations

2012 GB/T 27894.5-2012 Natural gas-Determination of composition with defined uncertainty by gas chromatography.Part 5:Determination of nitrogen,carbon dioxideand C1 to C5and C6+hydrocarbons for a laboratory and on-line process application using thr