GB/T 4699.2-2008
Ferrochromium and ferrosilicochromium. Determination of chromium content. The ammonium persulfate oxidation titrimetric method and potentiometric titration method (English Version)

Standard No.

GB/T 4699.2-2008

Language

Chinese, Available in English version

Release Date

2008

Published By

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

Latest

GB/T 4699.2-2008

Replace

GB/T 5687.1-1985 GB/T 4699.2-1984 GB/T 10323-1988

Scope

WARNING: Personnel applying this standard should have practical experience in formal laboratory work. This section does not address all possible security issues. It is the user's responsibility to take appropriate safety and health measures and ensure compliance with the conditions stipulated in the relevant national laws and regulations. This part specifies the ammonium persulfate oxidation titration method and potentiometric titration method for the determination of chromium content in ferrochromium and silicon chromium alloys. This section applies to the determination of chromium content in ferrochromium and silicon chromium alloys. Measuring range (mass fraction): 25.00% to 80.00%

GB/T 4699.2-2008 Referenced Document

• GB/T 4010 Ferroallys sampling and preparation of samples for chemical analysis*， 2015-09-11 Update

GB/T 4699.2-2008 history

• 2008 GB/T 4699.2-2008 Ferrochromium and ferrosilicochromium. Determination of chromium content. The ammonium persulfate oxidation titrimetric method and potentiometric titration method
• 1984 GB/T 4699.2-1984 Methods for chemical analysis of silicochromium--The alkaline fusion-ammonium persulfate oxidation volumetric method for the determination of chromium content

GB/T 4699.2-2008 Ferrochromium and ferrosilicochromium. Determination of chromium content. The ammonium persulfate oxidation titrimetric method and potentiometric titration method has been changed from GB/T 5687.1-1985 Methods for chemical analysis of ferro-chromium--The ammonium persulfate oxidation volumetric method for the determination of chromium content.

GB/T 4699.2-2008 Ferrochromium and ferrosilicochromium. Determination of chromium content. The ammonium persulfate oxidation titrimetric method and potentiometric titration method has been changed from GB/T 10323-1988 Methods for chemical analysis of ferrochromium and silicochromium--The potentiometric titration method for the determination of chromium content.

GB/T 4699.2-2008 -All Parts