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NBN ISO 4764:2025
Plastics — Polyols for use in the production of polyurethanes — Determination of degree of unsaturation by using iodine method
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Summary
This document specifies a method for quantifying the total unsaturation using an addition reaction of the interhalogen compound iodine monochloride (ICl), using glacial acetic acid as a solvent as a method for measuring the total unsaturation of a polyether polyol for polyurethanes. It is not applicable to unsaturated compounds that are conjugated with a carbonyl group, a carboxyl group, or a nitrile group.
Technical characteristics
| Publisher | Bureau de Normalisation Belge (NBN) |
| Publication Date | 01/28/2025 |
| Page Count | 0 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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