Reference number
ISO 14900:2023
International Standard
ISO 14900:2023
Plastics — Polyols for use in the production of polyurethanes — Determination of hydroxyl number
Edition 3
2023-12
Preview
ISO 14900:2023
85615
Indisponible en français
Publiée (Edition 3, 2023)

ISO 14900:2023

ISO 14900:2023
85615
Langue
Format
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

  •  : Publiée
     : 2023-12
    : Norme internationale publiée [60.60]
  •  : 3
  • ISO/TC 61/SC 12
    83.080.10 
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