ISO 14900:2023

Indisponible en français

Publiée (Edition 3, 2023)

ISO 14900:2023

CHF 63

Convertir les francs suisses (CHF) dans une autre devise

Résumé

This document specifies two methods for the measurement of the hydroxyl number of polyols used as polyurethane raw materials.

The hydroxyl content of polyols are determined to properly formulate polyurethane systems. Method A is primarily applicable to readily esterified polyether polyols. It is also intended for polyols which have significant steric hindrance, such as those based on sugars. Method B is intended for polyether polyols, polymer polyols and amine-initiated polyols, but can give low results for sterically hindered polyols. Other polyols can be analysed by these methods if precautions are taken to verify applicability. These methods can be used for research and for quality control and specification purposes.

Informations générales

État actuel
: Publiée

Date de publication
: 2023-12

Stade
: Norme internationale publiée [60.60]
Edition
: 3
Comité technique :
ISO/TC 61/SC 12

ICS :
83.080.10
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