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sklademVydáno: 2024
ISO 4764:2024
ISO 4764:2024-Plastics — Polyols for use in the production of polyurethanes — Determination of degree of unsaturation by using iodine method
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| Označení normy: | ISO 4764:2024 |
| Počet stran: | 9 |
| Vydání: | 1 |
| Vydáno: | 2024 |
| Jazyk: | Anglicky |
Popis
ISO 4764:2024
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.