ISO 743:1976
Sodium carbonate for industrial use — Determination of sulphate content — Barium sulphate gravimetric method
Sodium carbonate for industrial use — Determination of sulphate content — Barium sulphate gravimetric method
- Статус документа:
- Отменён
- Формат:
- Электронный (PDF)
- Количество страниц:
- 3
- Дата публикации:
- 1 февраля 1976 г.
- Издание:
- ISO IS 743 edition 1 version 1
- ICS:
- 71.060.50
The principle in dissolution of a test portion and separation of the insoluble matter. Precipitation of sulphate as barium sulphate in dilute hydrochloric acid medium. Separation of the precipitate obtained and ignition at 800 °C +- 25 °C and weighing. The method is applicable to products having a sodium sulphate content equal to or greater than 0,01 % (m/m). Replaces ISO Recommendation R 743-1968.
Технические детали
- Технический комитет
- ISO/TC 47 - Chemistry
- SKU
- ISO 743:1976
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