ISO International Standard

Plastics — Polyols for use in the production of polyurethanes — Determination of degree of unsaturation by microtitration

This document specifies a microtitration method to measure the degree of unsaturation in polyether polyols used in the production of polyurethanes. It is based on the reaction of mercuric acetate with double bonds in the polyol. It does not apply to compounds in which the unsaturation is conjugated with carbonyl, carboxyl or nitrile groups.

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