GB/T 338-2025 Methanol for industrial use

GB/T 338-2011 Methanol for industrial use

GB l90 GB/T 601-2002 Chemical reagent Preparations of standard volumetric solutions GB/T 601-2016 Chemical reagent—Preparations of reference titration solutions GB/T 603-2002 Chemical reagent—Preparations of reagent solutions for use in test methods GB/T 603-2023 Chemical reagent—Preparations of reagent solutions for use in test methods GB/T 2013-2010 Standard test method for density of liquid petrochemical products GB/T 3143-1982 Color determination method of liquid chemicals (Hazen unit—platinum-cobalt scale) GB/T 6283-1986 Chemical products—Determination of water—Karl fischer method (general method) GB/T 6283-2008 Chemical products—Determination of water Karl·fischer method(general method) GB/T 6324.1-1986 Organic chemical products for industrial use—Standard test method for water miscibility GB/T 6324.1-2004 Test method of organic chemical products—Part 1:Water miscibility test of liquid organic chemical products GB/T 6324.2-1986 Volatile organic liquids—Determination of dry residue after evaporation on a water bath—General method GB/T 6324.2-2004 Test method of organic chemical products—Part 2:Determination of dry residue after evaporation on a water bath for volatile organic liquids GB/T 6324.3-1993 Organic chemical products for industrial use—Test method for the determination of permanganate-reducing substances GB/T 6324.3-2011 Test method of organic chemical products—Part 3:Determination of permanganate-reducing substances GB/T 6324.5-1986 Organic chemical products for industrial use—Determination of content of carbonyl compounds present—Volumetric method GB/T 6324.5-2008 Test method of organic chemical products—Part 5:Determination of trace quantities of carbonyl compounds in organic chemicals GB/T 6324.6-1986 Organic chemical products for industrial use—Determination of content of carbonyl compounds present in small amounts—Photometric method GB/T 6324.6-2014 Test method of organic chemical products—Part 6:Determination of color for liquids—Tristimulus colorimetry GB/T 6678-2003 General principles for sampling chemical products GB/T 6680-2003 General rules for sampling liquid chemical products GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 40394-2021 Determination of trace trimethylamine in methanol for industrial use—Gas chromatography mass spectrometry GB/T 46434-2025 Determination of purity and trace organic impurities of methanol—Gas chromatography HG/T 4773-2014 The methanol used in the carbonyl synthesis process for producing acetic acid