Ссылочный номер
ISO 3195:1975
ISO 3195:1975
Sodium hydroxide for industrial use — Sampling — Test Sample — Preparation of the main solution for carrying out certain determinations
Версия 1
1975-03
В время отменен
ISO 3195:1975
8392
Отозвано (Версия 1, 1975)

Тезис

Indicates the conditions under which the test sample shall be prepared and relates to particular properties which require particular precausions: the samples shall be taken rapidly in a dry atmosphere, storage in an airtight bottle. The bottle shall be made from an inert material such as polyethylene. Preparation of the main solution with distilled carbonat- free water. If the silica content is to be determined the test portion shall be dissolved in a container made from silica-free material such as polyethylene or silver. Cancels and replaces ISO Recommendations R 977/1969 and R 978/1969.

Общая информация

  •  : Отозвано
     : 1975-03
    : Отмена международного стандарта [95.99]
  •  : 1
  • ISO/TC 47
    71.060.40 
  • RSS обновления

Жизненный цикл

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