Standard

ISO 8660:1988

Apr 1988 Withdrawn

Note: This standard has a new edition: ISO 8660:2002

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Abstract

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.

Document information

Standard from ISO
Published: 14 April 1988
Withdrawn: 6 June 2002
Expires: 18 May 1987
Edition: 1
Version: 1
Document type: IS
ISBN:

ICS 71.080.30
ISO TC ISO/TC 61/SC 5

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Revised by: ISO 8660:2002
Revised by: ISO 8660:2002

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Withdrawn

ISO 8660:1988
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ISO 8660:2002

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ISO 8660:2002

ISO 8660:1988

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ISO 8660:2002

ISO 8660:2002

ISO 8660:1988

Abstract

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Version history History (3)

ISO 8660:2002

ISO 8660:2002

ISO 8660:1988

Abstract

Document information

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Product life cycle