BS ISO 8660:2002
Plastics. Determination of permanganate absorption number of caprolactam. Spectrometric method
Plastics. Determination of permanganate absorption number of caprolactam. Spectrometric method
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Дата публикации:
- 15 июля 2002 г.
- ICS:
- 71.080.30
- SKU:
- BS ISO 8660:2002
Abstract
1 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.
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