Multi-part Document
BS EN ISO 6974 - Natural gas. Determination of composition with defined uncertainty by gas chromatography

This is a multi-part document divided into the following parts:

• Part 1 Natural gas. Determination of composition with defined uncertainty by gas chromatography. Guidelines for tailored analysis
• Part 2 Natural gas. Determination of composition with defined uncertainty by gas chromatography. Measuring-system characteristics and statistics for processing of data
• Part 3 Natural gas. Determination of composition with defined uncertainty by gas chromatography. Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and hydrocarbons up to C8 using two packed columns
• Part 4 Natural gas. Determination of composition with defined uncertainty by gas chromatography. Determination of nitrogen, carbon dioxide and C1 to C5 and C6+ hydrocarbons for a laboratory and on-line measuring system using two columns
• Part 5 Natural gas. Determination of composition with defined uncertainty by gas chromatography. Determination of nitrogen, carbon dioxide and C1 to C5 and C6+ hydrocarbons for a laboratory and on-line process application using three columns
• Part 6 Natural gas. Determination of composition with defined uncertainty by gas chromatography. Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and C1 to C8 hydrocarbons using three capillary columns