GB/T 9349-2002 (English Version) PDF

Standard No.: GB/T 9349-2002
Language: Chinese, Available in English version
Release Date: 2002
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 9349-2002
Replace: GB/T 9349-1988

Scope: This standard specifies two methods for measuring the thermal stability of blends and products mainly composed of vinyl chloride homopolymers and copolymers (hereinafter referred to as PVC) by discoloration in the form of thin sheets placed at high temperatures. This standard is applicable to the determination of the thermal degradation resistance of PVC. It is evaluated by the color change of different heating times under standard conditions. The results are only relative and are not applicable to the determination of colored PVC materials. ——Method A: oil bath method——Method B: oven method The stability times obtained by the two methods may be inconsistent, and the two results cannot be directly compared.

GB/T 9349-2002 history

2002 GB/T 9349-2002 Determination of thermal stabitity of poly(vinyl chloride) related chlorine-containing homopolymers and copolymers and their compounds--Discoloration method
0000 GB/T 9349-1988