ISO 731-3:1977 PDF
Formic acid for industrial use — Methods of test — Part 3: Determination of content of other acids — Potentiometric method
Название (английский):
ISO 731-3:1977
Formic acid for industrial use — Methods of test — Part 3: Determination of content of other acids — Potentiometric method
- 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 quantitative oxidation of the formic acid in a test portion with excess mercury(II) oxide. Potentiometric titration of the residual acids with standard volumetric sodium hydroxide solution. The method is applicable to products containing 0,5 to 6,0 % (m/m) of other acids, expressed as acetic acid. ISO/R 731 has been subdivised into seven parts. ISO 731/3 replaces clause 4 of ISO Recommendation R 731-1968.
Технические детали
- Технический комитет
- ISO/TC 47 - Chemistry
- SKU
- ISO 731-3:1977