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Homepage>ISO Standards>ISO 8660:2002-Plastics-Determination of permanganate absorption number of caprolactam
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download between 0-24 hoursReleased: 2002
ISO 8660:2002-Plastics-Determination of permanganate absorption number of caprolactam

ISO 8660:2002

ISO 8660:2002-Plastics-Determination of permanganate absorption number of caprolactam

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Standard´s number:ISO 8660:2002
Pages:6
Edition:2
Released:2002
DESCRIPTION

ISO 8660:2002


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.