HG/T 4699-2014
GB/T 11213.7-2008
Test methods of sodium hydroxide for chemical fiber use -Part 7:Determination of copper content-spectrometric method
GB/T 11064.16-2023
Methods for chemical analysis of lithium carbonate, lithium hydroxide monohydrate and lithium chloride—Part 16: Determination of calcium, magnesium, copper, lead, zinc, nickel, manenases, cadmium, aluminum, iron and sulfate contents—Inductively coupled plasma atomic emission spectrometry
GB/T 5121.8-2024
Methods for chemical analysis of copper and copper alloys—Part 8 : Determination of oxygen, nitrogen and hydrogen contents
YS/T 1658.4-2023
GB/T 11213.7-1989
Sodium hydroxido for chemical fiber use—Determination of copper mass fraction—Spectrometric method
YS/T 1445.3-2021
32012L0002
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
AATCC 185-2016
Chelating Agents: Percent Content in Hydrogen Peroxide Bleach Baths; Copper PAN Indicator Method
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 8152.17-2023(\u82f1\u6587\u7248)
铅精矿化学分析方法 第17部分:铝、镁、铁、铜、锌、镉、砷、锑、铋、钙含量的测定 电感耦合等离子体原子发射光谱法
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