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ISO 8660:1988

Caprolactam for industrial use — Determination of permanganate index — Spectrometric method

Standard Details

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.

General Information

Status : WITHDRAWN
Standard Type: Main
Document No: ISO 8660:1988
Document Year: 1988
Pages: 2
Edition: 1

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WITHDRAWN
ISO 8660:1988
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