GB/T 23672-2009 2-Ethylanthraquinone

GB/T 2386-2006 Dyestuffs and intermediate of dyes—Determination of moisture GB/T 6678-2003 General principles for sampling chemical products GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 2384-1992 Dye intermediates—General method for the determination of melting range GB/T 2384-2007 Dyes intermediates—General method for the determination of melting range GB/T 2384-2015 Dyes intermediates—General method for the determination of melting range GB/T 2384-2021 Dyes intermediates—General method for the determination of melting range GB/T 9728-1988 Chemical reagent General method for the determination of sulphate GB/T 9728-2007 Chemical reagent—General method for the determination of sulphate GB/T 9729-1988 Chemical reagent General method for the determination of chloride GB/T 9729-2007 Chemical reagent—General method for the determination of chloride GB/T 191-2025 Graphical symbols marking for handling and storage of packages