Home / Standards / GB/T 7142-2002 GB/T 7142-2002 Active Determination of time-temperature limits for plastics after prolonged exposure to heat 塑料长期热暴露后时间-温度极限的测定 Standard Type GBT ICS 83.080.01 CCS G31 Status 现行 Issue Date 2002-05-29 Implementation 2002-12-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A