Reference number
ISO 731-4:1977
ISO 731-4:1977
Formic acid for industrial use — Methods of test — Part 4: Visual limit test for inorganic chlorides
Edition 1
1977-02
Retirada
ISO 731-4:1977
4975
Retirada (Edición 1, 1977)

Resumen

Applicable to products having inorganic chlorides contents in the range 0,0005 to 0,5 % (m/m). Comparison of the turbidity, obtained by the addition of silver nitrate to a solution prepared from a test portion, with that similarly obtained from a standard chloride solution.

Informaciones generales

  •  : Retirada
     : 1977-02
    : Retirada de la Norma Internacional [95.99]
  •  : 1
     : 2
  • ISO/TC 47
    71.080.40 
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