标准摘要
[中文适用范围]： 本标准规定了测定工业用己内酰胺高锰酸盐吸收值的光谱方法。 高锰酸盐吸收值是己内酰胺中可氧化杂质的量度，在固定条件下在缓冲中性水介质中测定。 该方法适用于碱度或酸度低于 0.50 mmol/kg、PAN 值高达 35 的纯化己内酰胺（以及己内酰胺纯化过程中的中间体）。 [外文原描述]： 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.
英文名称Plastics — Determination of permanganate absorption number of caprolactam — Spectrometric method