Ссылочный номер
ISO 753-9:1981
ISO 753-9:1981
Acetic acid for industrial use — Methods of test — Part 9: Visual limit test for inorganic sulphates
Версия 1
1981-10
В время отменен
ISO 753-9:1981
5018
Отозвано (Версия 1, 1981)

Тезис

Specifies a method for a visual comparison of the turbitity obtained by adding a barium chloride solution to a solution of a test portion acidified with hydrochloric acid, with that similarly obtained from a sulphate solution of known concentration. Using a test portion of 100 g, the method is applicable directly to products having inorganic sulphate contents in the range 0,001 % (m/m) to 0,1 % (m/m). This range can be extended by adjusting the mass of the test portion. It has also been approved by the International Union of Pure and Applied Chemistry (IUPAC). ISO 753/1 to ISO 753/11 cancel and replace ISO Recommendation R 753-1968.

Общая информация

  •  : Отозвано
     : 1981-10
    : Отмена международного стандарта [95.99]
  •  : 1
  • ISO/TC 47
    71.080.40 
  • RSS обновления

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