Reference number
ISO 906:1976
ISO 906:1976
Hydrochloric acid for industrial use — Determination of sulphate content — Barium sulphate gravimetric method
Edition 1
1976-11
Retirada
ISO 906:1976
5310
Retirada (Edición 1, 1976)

Resumen

The method is applicable to products having sulphate contents equal to or greater than 0,1 % (m/m). The principle consists in precipitation of the sulphates contained in a test portion as barium sulphate in diluted hydrochloric acid medium. Separation of the precipitate obtained and ignition of the residue in an electric furnace, amintained at (800 +- 25 ) °C, and weighing. Replaces ISO Recommendation R 906-1968.

Informaciones generales

  •  : Retirada
     : 1976-11
    : Retirada de la Norma Internacional [95.99]
  •  : 1
     : 2
  • ISO/TC 47
    71.060.30 
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