GB/T 11213.1-2007
Sodium hydroxide for chemical fiber use - Determination of sodium hydroxide content
GB/T 4348.1-2013
Sodium hydroxide for industrial use - Determination of sodium hydroxide and sodium carbonate content
GB/T 4348.2-2014
Sodium hydroxide for industrial use―Determination of sodium chloride content―Mercurimetric method
GB/T 11213.5-2006
Sodium hydroxide for chemical fiber use - Determination of sulphate content
GB/T 7698-2014
Sodium hydroxide for industrial use―Determination of carbonates content―Titrimetric method
GB/T 11064.2-2023
Methods for chemical analysis of lithium carbonate,lithium hydroxide monohydrate and lithium chloride—Part 2:Determination of lithium hydroxide content—Acid-alkali titrimetric method
GB/T 2677.5-1993
Fibrous raw material--Determinationof one percent sodium hydroxide solubility
GB/T 22651-2008
Sodium hydroxide for industrial use - Determination of mercury content - Spectrometric method
GB/T 22650-2008
Sodium hydroxide for industrial use - Determination of calcium and magnesium content - Complexometric method
GB/T 11213.3-2003
Sodium hydroxide for chemical fiber use--Determination of the calcium content--EDTA complexometric method
GB/T 12010.7-2010
Plastics - polyvinyl alcohol (PVAL)materials - Part 7: Determination for sodium hydroxide contents
GB/T 11213.2-2007
Sodium hydroxide for chemical fiber use - Determination of sodium chloride content - Spectrometric method
GB/T 4348.1-2000
Sodium hydroxide for industrial use—Determination of sodium hydroxide and sodium carbonate content
GB/T 4348.3-2012
Sodium hydroxide for industrial use - Determination of iron content-1,10-phenanthroline photometric method
GB/T 11213.4-2006
Sodium hydroxide for chemical fiber use - Determination of silicon content - Reduced molybdosilicate spectrophotometric method
GB/T 11200.3-2008
Text methods of high-purity sodium hydroxide - Part 3: Determination of calcium content - Flame atomic absorption method
GB/T 11200.1-2006
Sodium hydroxide for industrial use - Determination of sodium chlorate content - O-Tolidine spectrometric method
GB/T 11200.2-2008
Sodium hydroxide for industrial use - Determination of aluminium oxide content - Spectrometric method
HG/T 3942-2007
Sodium hydroxide for industrial use-Determination of metal and nonmetal ions content-ICP method
YS/T 534.5-2007
Chemical analysis methods of aluminium hydroxide—Part 5:Determination of sodium oxide content