ISO 6974-3:2018
Natural gas — Determination of composition and associated uncertainty by gas chromatography — Part 3: Precision and bias

Standard No.

ISO 6974-3:2018

Release Date

2018

Published By

International Organization for Standardization (ISO)

Latest

ISO 6974-3:2018

Scope

This document describes the precision that can be expected from the gas chromatographic method that is set up in accordance with ISO 6974-1. The stated precision provides values for the magnitude of variability that can be expected between test results when the method described in ISO 6974-1 is applied in one or more competent laboratories. This document also gives guidance on the assessment of bias.

ISO 6974-3:2018 Referenced Document

• ISO/IEC 17025:2017 General requirements for the competence of testing and calibration laboratories

ISO 6974-3:2018 history

• 2018 ISO 6974-3:2018 Natural gas — Determination of composition and associated uncertainty by gas chromatography — Part 3: Precision and bias
• 2000 ISO 6974-3:2000 Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 3: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and hydrocarbons up to C<(Index)8> using two packed columns