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ISO 8660:2002

Plastics — Determination of permanganate absorption number of caprolactam — Spectrometric method
6 qer 2002

General information

90.93     15 qer 2022

ISO

ISO/TC 61/SC 5

International Standard

71.080.30     83.080.01  

anglisht   frëngjisht  

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Scope

This International Standard specifies a spectrometric method for the determination of the permanganate absorption number of caprolactam for industrial use. The permanganate absorption number is a measure of the oxidizable impurities in caprolactam, determined in a buffered neutral aqueous medium under fixed conditions.
The method is applicable to purified caprolactam (and intermediates in the caprolactam purification process) with an alkalinity or acidity lower than 0,50 mmol/kg and a PAN value of up to 35.

Life cycle

PREVIOUSLY

Revises
ISO 8660:1988

NOW

PUBLISHED
ISO 8660:2002
90.93 Standard confirmed
15 qer 2022

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