ISO 8660:1988 PDF
Caprolactam for industrial use — Determination of permanganate index — Spectrometric method
Title (English):
ISO 8660:1988
Caprolactam for industrial use — Determination of permanganate index — Spectrometric method
- Document status:
- Withdrawn
- Format:
- Electronic (PDF)
- Number of pages:
- 2
- Publication date:
- April 14, 1988
- Edition:
- ISO IS 8660 edition 1 version 1
- ICS:
- 71.080.30
Description (English):
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.
Technical details
- Technical committee
- ISO/TC 61/SC 5 - Physical-chemical properties
- SKU
- ISO 8660:1988
