BS ISO 8660:2002

This standard BS ISO 8660:2002 Plastics. Determination of permanganate absorption number of caprolactam. Spectrometric method is classified in these ICS categories:

• 83.080.01 Plastics in general
• 71.080.30 Organic nitrogen compounds

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.