NEN-EN-ISO 15023-1
Plastics - Poly(vinyl alcohol) (PVAL) materials - Part 1: Designation system and basis for specifications
| Organization: | NEN |
| Publication Date: | 1 April 2006 |
| Status: | inactive |
| Page Count: | 18 |
| ICS Code (Thermoplastic materials): | 83.080.20 |
scope:
This part of ISO 15023 establishes a system of designation for poly(vinyl alcohol) (PVAL) materials which may be used as the basis for specifications. 1.2 The types of poly(vinyl alc ohol) (PVAL) materials are differentiated from each other by a classification system based on the designatory properties: a) degree of hydrolysis b) viscosity of aqueous solution under d efined conditions and on information about basic polymer param eters, intended application and/or method of processing.
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