ISO 14900:2023
ISO 14900:2023 Plastics – Polyols for use in the production of polyurethanes – Determination of hydroxyl number
CDN $130.00
Description
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.
Edition
3
Published Date
2023-12-12
Status
PUBLISHED
Pages
12
Language
English
Format
Secure PDF
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Abstract
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.
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