Home / Standards / GB/T 18658-2018 GB/T 18658-2018 Active Charpy V-notch reference test pieces for indirect verification of pendulum impact testing machines 摆锤式冲击试验机间接检验用夏比V型缺口标准试样 Standard Type GBT ICS 19.060;77.040.10 CCS N71 Status 现行 Issue Date 2018-07-13 Implementation 2019-02-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A