GB/T 4348.3-2012
Sodium hydroxide for industrial use.Determination of iron content.1,10-phenanthroline photometric method (English Version)

Standard No.

GB/T 4348.3-2012

Language

Chinese, Available in English version

Release Date

2012

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 4348.3-2012

Replace

GB/T 4348.3-2002

Scope

This standard specifies the method for the determination of iron content in industrial sodium hydroxide by 1,10-phenanthroline spectrophotometry. This standard is applicable to industrial sodium hydroxide products with iron content greater than or equal to 0.00005% (mass fraction),

GB/T 4348.3-2012 Referenced Document

• GB/T 603 Preparation of preparations and products used in chemical reagent test methods*， 2023-08-06 Update
• GB/T 6682 Water for analytical laboratory use.Specification and test methods

GB/T 4348.3-2012 history

• 2012 GB/T 4348.3-2012 Sodium hydroxide for industrial use.Determination of iron content.1,10-phenanthroline photometric method
• 2002 GB/T 4348.3-2002 Sodium hydroxide for industrial use--Determination of iron content-1,10--Phenanthroline photometric method

GB/T 4348.3-2012 -All Parts