GB/T 601-2016 Chemical reagent—Preparations of reference titration solutions

GB/T 601-2002 Chemical reagent Preparations of standard volumetric solutions

GB/T 6379.6-2009 Accuracy(trueness and precision)of measurement methods and results—Part 6:Use in practice of accuracy values GB/T 9725-2007 Chemical reagent—General rule for potentiometric titration JJG 196-2006 Working Glass Container 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 606-2003 Chemical reagent—General method for the determination of water—Karl Fischer method 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 JJG 130-2011 Liquid-in-Glass Thermometers for Working JJG 1036-2008 Electronic Balance JJG 1036-2022 Electronic Balance JJG 130-2004 Verification Regulation of Liquid-in-Glass Thermometers for Working