Standard No.:	GB/T 9349-2002
English Name:	Determination of thermal stabitity of poly (vinylchloride) related chlorine - containing homopolymers and copolymers and their compounds - Discoloration method
Chinese Name:	聚氯乙烯、相关含氯均聚物和共聚物及其共混物热稳定性的测定 变色法
Chinese Classification:	G32    Synthetic resin and plastic
Professional Classification:	GB    National Standard
ICS Classification:	83.080.20 83.080.20    Thermoplastic materials 83.080.20
Issued by:	AQSIQ
Issued on:	2002-5-2
Implemented on:	2002-12-1
Status:	valid
Superseding:	GB/T 9349-1988 Determination of the thermal stability of homopolymer and copolymer resins of cinyl chloride and their compounds--Discoloration method
Language:	English
File Format:	PDF
Word Count:	3500 words
Price(USD):	100.00
Delivery:	via email in 1~3 business day

本标准规定了以聚乙烯均聚物和共聚物（以下简称PVC）为主的共混物和制品，通过以薄片形式放置在高温中发生变色程度测定热稳定性的两种方法。本标准适用于测定PVC的热降解阻力，通过在标准条件下不同加热时间颜色变化来评价，结果只是相对的，不适用对有颜色PVC材料的测定。——A法：油浴法——B法：烘箱法由两种方法得出的稳定时间可能不一致，不能将两个结果直接对比。