GB/T 629-2026 Chemical reagent—Sodium hydroxide

GB/T 629-1997 Chemical reagent—Sodium hydroxide

GB/T 601-2002 Chemical reagent Preparations of standard volumetric solutions GB/T 601-2016 Chemical reagent—Preparations of reference titration solutions GB/T 602-2002 Chemical reagent—Preparations of standard solutions for impurity GB/T 602-2026 Chemical reagent—Preparations of standard solutions for impurity 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 609-2018 Chemical reagent—General method for the determination of total nitrogen GB/T 610-2008 Chemical reagent—General method for the determination of arsenic 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 9723-2007 Chemical reagent—General rule for flame atomic absorption spectrometric analysis GB/T 9727-2007 Chemical reagent—General method for the determination of phosphate 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 9734-1988 Chemical reagent General method for the determination of aluminium GB/T 9734-2008 Chemical reagent—General method for the determination of aluminium GB/T 9735-2008 Chemical reagent—General method for the determination of heavy metals GB/T 9739-1988 Chemical reagent General method for the determination of iron GB/T 9739-2006 Chemical reagent—General method for the determination of iron GB/T 9742-1988 Chemical reagent General method for the determination of silicate GB/T 9742-2008 Chemical reagent—General method for the determination of silicate GB 15258-1999 General rules for preparation of precautionary label for industrial chemicals GB 15258-2009 General rules for preparation of precautionary label for chemicals GB 15346-1994 Chemical reagent—Packaging and marking GB 15346-2012 Chemical reagent—Packaging and marking GB/T 23942-2009 Chemical reagent—General rules for inductively coupled plasma atomic emission spectrometry GB 28644.2-2012 Limited quantities and packing requirements of dangerous goods GB/T 34672-2017 Chemical reagent—General rules for the ion chromatography HG/T 3484-1999 Chemical reagent Standard of clear liquor,made from glass dust,and standard of transparence HG/T 3921-2006 Chemical reagents sampling and acceptance rules