BS 7020-4.2:1990

Analysis of iron ores. Method for the determination of total iron content. Titanium (III) chloride reduction methods.

NORMA vydaná dňa 31.10.1990

Anglicky -
PDF - okamžité stiahnutie (183.80 EUR)

The information about the standard:

Designation standards: BS 7020-4.2:1990
Publication date standards: 31.10.1990
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: British technical standard
Kategória: Technické normy BS

Annotation of standard text BS 7020-4.2:1990 :

Two methods specified using potassium dichromate as titrant after reduction of the iron (III) by tin (II) chloride and titanium (III) chloride. Excess reductant oxidized by either dilute potassium dichromate or perchloric acid. Status: Definitive