ISO 731-5:1977 PDF
Formic acid for industrial use — Methods of test — Part 5: Visual limit test for inorganic sulphates
Название (английский):
ISO 731-5:1977
Formic acid for industrial use — Methods of test — Part 5: Visual limit test for inorganic sulphates
- Статус документа:
- Отменён
- Формат:
- Электронный (PDF)
- Количество страниц:
- 2
- Дата публикации:
- 1 февраля 1977 г.
- Издание:
- ISO IS 731 edition 1 version 1
- ICS:
- 71.080.40
Описание (английский):
The principle consists in a comparison of the turbidity, obtained by the addition of barium chloride to a solution prepared from a test portion in the presence of hydrochloric acid, with that similarly obtained from a standard sulphate solution. The method is a applicable to products having inorganic sulphates contents, expressed as sulphate (SO42-), in the range 0,001 to 0,1 % (m/m).
Технические детали
- Технический комитет
- ISO/TC 47 - Chemistry
- SKU
- ISO 731-5:1977