GB/T 33649-2017 Determination of oxygenates and aniline compounds in motor gasoline—Gas chromatography

GB/T 4756-1998 Petroleum liquids—Manual sampling GB/T 4756-2015 Method for manual sampling of petroleum liquids GB/T 6683-1997 Petroleum products—Determination of precision data in relation to methods of test GB/T 6683.1-2021 Petroleum and related products—Precision of measurement methods and results—Part 1:Determination of precision data in relation to methods of test GB/T 6683.3-2023 Petroleum and related products—Precision of measurement methods and results—Part 3:Monitoring and verification of published precision data in relation to methods of test GB/T 27867-2011 Petroleum liquid—Automatic pipeline sampling NB/SH/T 0663-2014 Determination of alcohol and ether content in gasoline by gas chromatography GB/T 6683.2-2025 Pertroleum and related products—Precision of measurement methods and results—Part 2:Interpretation and application of precision data in relation to methods of test GB/T 6683.4-2026 Petroleum and related products—Precision of measurement methods and results—Part 4:Use of statistical control charts to validate 'in-statistical-control' status for the execution of a test method standard in a single laboratory