ISO 746:1976
Sodium carbonate for industrial use — Determination of matter insoluble in water at 50 degrees C
Sodium carbonate for industrial use — Determination of matter insoluble in water at 50 degrees C
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 2
- Дата публикации:
- 1 февраля 1976 г.
- Издание:
- ISO IS 746 edition 1 version 1
- ICS:
- 71.060.50
The principle of the method consists in dissolution of a test portion and filtration of the solution through a tared filter. Washing of the insoluble matter at approximately 50 C until the washings are no longer alkaline. Drying of the residue and weighing. Replaces ISO Recommendation R 746-1968.
Abstract
Overview
ISO 746:1976 specifies a standardized for determining the amount of in . The method replaces ISO Recommendation R 746‑1968 and defines the principle, apparatus, reagents, procedure and expression of results required for consistent, comparable test data in quality control and compliance testing.
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