GB/T 4348.3-2002
Sodium hydroxide for industrial use--Determination of iron content-1,10--Phenanthroline photometric method (English Version)

Standard No.

GB/T 4348.3-2002

Language

Chinese, Available in English version

Release Date

2002

Published By

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

Status

Be replaced 2013-08

Replace By

GB/T 4348.3-2012

Latest

GB/T 4348.3-2012

Scope

This standard specifies the method for the determination of iron content in industrial sodium hydroxide by l,l0-phenanthroline spectrophotometry. This standard is applicable to all levels of industrial sodium hydroxide products with iron content greater than or equal to 0.00005%.

GB/T 4348.3-2002 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 4348.3-2002 -All Parts