ISO 804:1976
Aluminium oxide primarily used for the production of aluminium — Preparation of solution for analysis — Method by alkaline fusion
Reference number
ISO 804:1976
Edición 1
1976-09
Retirada
ISO 804:1976
5149
Retirada (Edición 1, 1976)

Resumen

The procedure for the preparation of a principal solution for chemical analysis requires at first an alkaline fusion of the test portion, either with a mixture of sodium carbonate and boric acid or with a mixture of sodium carbonate and sodium tetraborate. Subsequent dissolution of the molten mass in an excess of nitric acid and adjustment of an appropriate aliquot portion to pH 2. Replaces ISO Recommendation R804/1968.

Informaciones generales

  •  : Retirada
     : 1976-09
    : Retirada de la Norma Internacional [95.99]
  •  : 1
     : 3
  • ISO/TC 226
    71.100.10 
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