GB/T 4348.3-2012
ActiveSodium hydroxide for industrial use - Determination of iron content－1，10－phenanthroline photometric method
工业用氢氧化钠 铁含量的测定 1，10-菲啰啉分光光度法
Application Summary AI generated
This standard specifies the 1,10-phenanthroline photometric method for determining iron content in industrial-grade sodium hydroxide. It is applied in chemical manufacturing and quality control laboratories to test raw materials or finished products, ensuring that iron impurities remain within specified limits for applications such as water treatment, pulp and paper production, or soap manufacturing. The method is particularly relevant for verifying compliance with purity requirements in industrial processes where iron contamination could affect product quality or cause discoloration.
Related Standards
HG/T 3815-2006
Potassium hydroxide solution by ion exchange membrane method for industrial use
GB/T 11213.3-2003
Sodium hydroxide for chemical fiber use--Determination of the calcium content--EDTA complexometric method
GB/T 4947-2003
Red phosphoric for industrial use
GB/T 19306-2003
Sodium cyanide for industrial use
GB/T 4104-2003
Leucoscopic method for testing whiteness of zinc oxide made by direct process
GB/T 8185-2004
Palladium chloride
GB/T 210.2-2004
Specification and determination methods of sodium carbonate for industrial use--Part 2:Specification and determination methods
GB/T 1587-2000
Potassium carbonate for industrial use
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.