GB/T 23668-2016 2,6-Dichloro-4-nitroaniline

GB/T 23668-2009 2,6-Dichloro-4-nitroaniline

GB/T 2386-2014 Dyestuffs and intermediate of dyes—Determination of moisture content GB/T 6678-2003 General principles for sampling chemical products GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values 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 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 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 21876-2008 Solvent dyes and intermediate of dyes—Determination of ash content GB/T 21876-2015 Solvent dyes and intermediate of dyes—Determination of ash content GB/T 24164-2009 Determination of the content of polychloriznated benzenes in dye products GB/T 24164-2020 Determination of chlorinated benzenes in dye products GB/T 24165-2009 Determination of the content of polychlorinated biphenyls in dye products GB/T 24165-2020 Determination of polychlorinated biphenyls in dye products GB/T 24166-2009 Determination of the content of chlorinated phenols in dye products GB/T 24166-2021 Determination of the content of chlorinated phenols in dye products