GB/T 28159-2025 Electronic grade phosphoric acid

GB/T 28159-2011 Electronic grade phosphoric acid

GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 191-2025 Graphical symbols marking for handling and storage of packages 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 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 1282-2013 Chemical reagent—Phosphoric acid GB 1886.15-2015 Food Safety National Standard for Food Additives: Phosphoric Acid GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 11446.1-1997 Electronic grade water GB/T 11446.1-2013 Electronic grade water 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/T 23770-2009 Liquid inorganic chemical products—General method for the measurement of colour GB/T 25915.1-2010 Cleanrooms and associated controlled environments—Part 1:Classification of air cleanliness GB/T 25915.1-2021 Cleanrooms and associated controlled environments—Part 1:Classification of air cleanliness by particle concentration GB/T 34672-2017 Chemical reagent—General rules for the ion chromatography SJ/T 11637-2016 Electronic chemicals and ICP-MS general rules SJ/T 11638-2016 The testing methods for particles in electronic chemicals GB/T 602-2026 Chemical reagent—Preparations of standard solutions for impurity