GB/T 209-2018 Sodium hydroxide for industrial use

GB/T 209-2006 Sodium hydroxide for industrial use

GB 190-1990 Labels for packages of dangerous goods GB 190-2009 Packing symbol of dangerous goods GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 601-2002 Chemical reagent Preparations of standard volumetric solutions GB/T 601-2016 Chemical reagent—Preparations of reference titration solutions 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 4348.1-2000 Sodium hydroxide for industrial use—Determination of sodium hydroxide and sodium carbonate content GB/T 4348.1-2013 Sodium hydroxide for industrial use—Determination of sodium hydroxide and sodium carbonate content GB/T 4348.2-2002 Sodium hydroxide for industrial use—Determination of sodium chloride content—Mercurimetric method GB/T 4348.2-2014 Sodium hydroxide for industrial use—Determination of sodium chloride content—Mercurimetric method GB/T 4348.3-2002 Sodium hydroxide for industrial use—Determination of iron content-1,10—Phenanthroline photometric method GB/T 4348.3-2012 Sodium hydroxide for industrial use—Determination of iron content—1,10-phenanthroline photometric method GB/T 6678-2003 General principles for sampling chemical products GB/T 6679-2003 General rules for sampling solid chemical products GB/T 6680-2003 General rules for sampling liquid chemical products GB/T 7698-2003 Sodium hydroxide for industrial use—Determination of carbonates content—Titrimetric method GB/T 7698-2014 Sodium hydroxide for industrial use—Determination of carbonates content—Titrimetric method 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 9725-1988 Chemical reagent General rules for potentiometric titration GB/T 9725-2007 Chemical reagent—General rule for potentiometric titration GB/T 11213.2-1989 Sodium hydroxide for chemical fiber use—Determination of sodium chloride content—Spectrometric method GB/T 11213.2-2007 Sodium hydroxide for chemical fiber use—Determination of sodium chloride content—Spectrometric method GB/T 15915-1995 Paking containers—Caustic alkali steel drum GB/T 15915-2007 Paking containers—Caustic alkali steel drum GB/T 191-2025 Graphical symbols marking for handling and storage of packages GB/T 4348.1-2026 Component determination of sodium hydroxide for industrial use—Part 1:Sodium hydroxide and sodium carbonate