GB/T 43865-2024 General rules for direct sampling mercury analysis method

GB/T 602-2002 Chemical reagent—Preparations of standard solutions for impurity GB/T 622-1989 Chemical reagent—Hydrochloric acid GB/T 622-2006 Chemical reagent—Hydrochloric acid GB/T 626-1989 Chemical reagent—Nitric acid GB/T 626-2006 Chemical reagent—Nitric acid GB/T 638-1988 Chemical reagent—Tin(Ⅱ) chloride dihydrate GB/T 638-2007 Chemical reagent—Tin(Ⅱ) Chloride dihydrate GB/T 638-2018 Chemical reagent—Stannous chloride dihydrate GB/T 642-1999 Chemical reagent—Potassium dichromate GB/T 4842-1995 Pure argon GB/T 4842-2006 Argon GB/T 4842-2017 Argon GB/T 6379.1-2004 Accuracy(trueness and precision)of measurement methods and results—Part 1:General principles and definitions GB/T 6379.2-2004 Accuracy(trueness and precision)of measurement methods and results—Part 2:Basic method for the determination of repeatability and reproducibility of a standard measurement 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 GB/T 8979-1996 Pure nitrogen GB/T 8979-2008 Pure nitrogen and high purity nitrogen and ultra pure nitrogen GB/T 13966-1992 Analytical instrument—Vocabulary GB/T 13966-2013 Terminology for analytical instruments GB/T 14599-1993 High purity oxygen GB/T 14599-2008 Pure oxygen and high purity oxygen and ultra pure oxygen GB/T 27411-2012 Routine methods for evaluation and expression of measurement uncertainty in testing laboratory GB/T 27415-2013 Estimate of detection and quantitation limit for analytical method JB/T 5228-2018 Mercury Analyzer GB/T 14599-2025 Pure oxygen,high purity oxygen and ultra pure oxygen GB/T 8979-2025 Pure nitrogen,high purity nitrogen and ultra pure nitrogen GB/T 602-2026 Chemical reagent—Preparations of standard solutions for impurity