GB/T 2092-2024 Sebacic acid for industrial use

GB/T 2092-1992 Sebacic acid for industrial use

GB/T 6283-2008 Chemical products—Determination of water Karl·fischer method(general method) 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 617-1988 Chemical reagent General method for the determination of melting range GB/T 617-2006 Chemical reagent—General method for the determination of melting range GB/T 3143-1982 Color determination method of liquid chemicals (Hazen unit—platinum-cobalt scale) GB/T 6284-1986 Chemical products for industrial use—General method for determination of water content—Gravimetric method GB/T 6284-2006 Chemical products for industrial use—General method for determination of water content—The loss of mass on drying method GB/T 6678-2003 General principles for sampling chemical products GB/T 6679-2003 General rules for sampling solid 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 7531-1987 Determination of ash for organic chemical products GB/T 7531-2008 Determination of ignition residue for organic chemical products 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 9722-2006 Chemical reagent—General rules for the gas chromatography GB/T 9722-2023 Chemical reagent—General rules for the gas chromatography