Reference number
ISO 745:1976
ISO 745:1976
Sodium carbonate for industrial use — Determination of loss of mass and of non-volatile matter at 250 degrees C
Edition 1
1976-02
Retirada
ISO 745:1976
4999
Retirada (Edición 1, 1976)

Resumen

Describes a method of analysis of anhydrous sodium carbonate and sodium carbonate decahydrate. The principle of analysis consists in heating of thin layers of a test portion to constant mass at 250 °C. The residue constitutes the non-volatile matter at 250 °C. The loss of mass represents water in its various forms plus half the carbon dioxide content of the hydrogen carbonate present. Replaces ISO Recommendation R 745-1968.

Informaciones generales

  •  : Retirada
     : 1976-02
    : Retirada de la Norma Internacional [95.99]
  •  : 1
     : 2
  • ISO/TC 47
    71.060.50 
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