Home / Standards / GB/T 21189-2007 GB/T 21189-2007 Active Verification of pendulum impact-testing machines used for Charpy, lzod and tensile impact-testing of plastics 塑料简支梁、悬臂梁和拉伸冲击试验用摆锤冲击试验机的检验 Standard Type GBT ICS 83.200;19.060 CCS N72 Status 现行 Issue Date 2007-11-14 Implementation 2008-05-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A