Active standard | Published: 16/09/2024

ISO 4764:2024

Plastics — Polyols for use in the production of polyurethanes — Determination of degree of unsaturation by using iodine method
(Plastiques — Polyols pour la production des polyuréthanes — Détermination du degré de non-saturation par la méthode a l´iode)

Available languages: English

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Detail information

Designation: ISO 4764:2024

Publication date: 16/09/2024

Pages: 9

Country: International technical standard

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Anotation

Description / Abstract: 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.

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