Повучен
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.
ПОВУЧЕН
ISO 305:1976
ПОВУЧЕН
ISO 305:1990
95.99
Повучен
15. 5. 2019.
ОБЈАВЉЕН
ISO 305:2019
Plastične mase — Određivanje termičke stabilnosti poli(vinil-hlorida), sličnih homopolimera koji sadrže hlor i kopolimera i njihovih jedinjenja — Metoda obezbojavanja
95.99 Повучен