GB/T 22650-2008 Active National standards

GB/T 22650-2008 Sodium hydroxide for industrial use—Determination of calcium and magnesium content—Complexometric method

GB/T 22650-2008 Sodium hydroxide for industrial use—Determination of calcium and magnesium content—Complexometric method

Publish Date: 2008-12-30 Implement Date: 2009-08-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 22650-2008

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Inorganic acids and alkalis

ICS Name: \nAlkali

Publish Date: 2008-12-30

Implement Date: 2009-08-01

Pages: 4 pages

Scope

This standard specifies the method for determining the total calcium and magnesium content in industrial sodium hydroxide.
This standard applies to industrial sodium hydroxide products with a total calcium and magnesium content greater than or equal to 0.0005%.

Development Information

Word Count: 5 Thousand words Pages: 4 pages

Referenced Standards

GB/T 601-2002 Chemical reagent Preparations of standard volumetric solutions GB/T 601-2016 Chemical reagent—Preparations of reference titration solutions GB/T 602-2002 Chemical reagent—Preparations of standard solutions for impurity GB/T 603-2002 Chemical reagent—Preparations of reagent solutions for use in test methods GB/T 603-2023 Chemical reagent—Preparations of reagent solutions for use in test methods GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods GB/T 602-2026 Chemical reagent—Preparations of standard solutions for impurity

Adopt standards

ΓOCT 2263:1979(1990)

Related Standards

GB/T 11199-1989 Replaced

GB/T 11199-1989 Membrane process sodium hydroxide

Publish Date: 1989-02-24

GB/T 11213.1-1989 Replaced

GB/T 11213.1-1989 Sodium hydroxide for chemical fiber—Determination method of mass fraction

Publish Date: 1989-03-31

GB/T 11213.2-1989 Replaced

GB/T 11213.2-1989 Sodium hydroxide for chemical fiber use—Determination of sodium chloride content—Spectrometric method

Publish Date: 1989-03-31

GB/T 11213.7-1989 Replaced

GB/T 11213.7-1989 Sodium hydroxido for chemical fiber use—Determination of copper mass fraction—Spectrometric method

Publish Date: 1989-03-31

GB 209-1993 Replaced

GB 209-1993 Sodium hydroxide for industrial use

Publish Date: 1993-01-06

GB/T 4294-1997 Replaced

GB/T 4294-1997 Aluminium hydroxide

Publish Date: 1997-12-22