ISO 8660:1988 PDF
Caprolactam for industrial use — Determination of permanganate index — Spectrometric method
Название (английский):
ISO 8660:1988
Caprolactam for industrial use — Determination of permanganate index — Spectrometric method
- Статус документа:
- Отменён
- Формат:
- Электронный (PDF)
- Количество страниц:
- 2
- Дата публикации:
- 14 апреля 1988 г.
- Издание:
- ISO IS 8660 edition 1 version 1
- ICS:
- 71.080.30
Описание (английский):
Equal volumes of potassium permanganate solution are added to a carpolactam test solution and to a blank (water). After standing for a specified time the absorbance, at a wavelength of 420 nm, of the test solution and of the blank are compared in cells of 5 cm thickness. The permanganat index is the difference between the absorbance of the test sample and that of the blank, multiplied by 100/3. It is a conventional measure of the content of oxidizable impurities.
Технические детали
- Технический комитет
- ISO/TC 61/SC 5 - Physical-chemical properties
- SKU
- ISO 8660:1988