ISO 1391-5:1981 PDF
Paraformaldehyde for industrial use — Methods of test — Determination of aldehyde content — Titrimetric method
Название (английский):
ISO 1391-5:1981
Paraformaldehyde for industrial use — Methods of test — Determination of aldehyde content — Titrimetric method
- Статус документа:
- Отменён
- Формат:
- Электронный (PDF)
- Количество страниц:
- 2
- Дата публикации:
- 1 мая 1981 г.
- Издание:
- ISO IS 1391 edition 1 version 1
- ICS:
- 71.080.80
Описание (английский):
The method is applicable to solid paraformaldehyde of aldehyde contents in the range 67 % (m/m) to 97 % (m/m). The principle consists in the reaction of aldehyde present in a test portion with neutralized sodium sulphite solution. Titration of the liberated sodium hydroxide with sulphuric acid solution using thymolphthalein as indicator. - This document has also been approved by the IUPAC.
Технические детали
- Технический комитет
- ISO/TC 47 - Chemistry
- SKU
- ISO 1391-5:1981