Determination of the acid value, hydroxyl value, and isocyanates in raw materials for the fabrication of plastics by automatic potentiometric titration

contributed by Metrohm | 02/08/2016

The determination of the acid value, the hydroxyl value, and the isocyanates plays an important part in the analysis of raw materials for plastics. The present bulletin describes the determination of these characteristic values by automatic potentiometric titration. The acid and hydroxyl value are measured according to ASTM, the isocyanate value is measured according to ISO.

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