Superseded
Standard
Historical
NBN EN ISO 305:1999
Plastics - Determination of thermal stability of poly(vinyl chloride), related chlorine-containing homopolymers and copolymers and their compounds - Discoloration method (ISO 305:1990)
Preview
Summary
Specification of a comparing method, based on the increasing discoloration of polyvinylchloride when exposed to heat, due to a decomposition reaction. Test pieces in diskform are placed between aluminium pieces and heated to the specified test temperature. After specified periods one test specimen at a time is taken out and the degree of discoloration assessed by visual examination or by measuring with a photometer.
Technical characteristics
| Publisher | Bureau de Normalisation Belge (NBN) |
| Publication Date | 09/29/1999 |
| Cancellation Date | 12/31/1999 |
| Page Count | 12 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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