This standard was last reviewed and confirmed in 2017. Therefore this version remains current.
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.
Status : PublishedPublication date : 2002-05
Edition : 2Number of pages : 6
Technical Committee:Physical-chemical properties
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