GB 10730-2008 Primary chemical—Potassium hydrogen phthalate

GB 10730-1989 Primary chemical—Potassium hydrogen phthalate

GB/T 9723-2007 Chemical reagent—General rule for flame atomic absorption spectrometric analysis JJG 116 JJG 119-2005 Laboratory pH Meters GB/T 602-2002 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 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 9724-2007 Chemical reagent—General rule for the determination of pH 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 9738-1988 Chemical reagent General method for the determination of water insoluble matter GB/T 9738-2008 Chemical reagent—General method for the determination of water insoluble matter 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 15346-1994 Chemical reagent—Packaging and marking GB 15346-2012 Chemical reagent—Packaging and marking JJG 99-2006 Weights JJG 99-2022 Weights JJG 153-1996 Standard Cell JJG 1006-2005 Determinators for Total Sulfur in Coal HG/T 3484-1999 Chemical reagent Standard of clear liquor,made from glass dust,and standard of transparence GB/T 602-2026 Chemical reagent—Preparations of standard solutions for impurity