Home / Standards / GB/T 38897-2020 GB/T 38897-2020 Active Non-destructive testing—Measurement method for material elastic modulus and Poisson's ratio using ultrasoinc velocity 无损检测 弹性模量和泊松比的超声测量方法 Standard Type GBT ICS 19.100 CCS J04 Status 现行 Issue Date 2020-06-02 Implementation 2021-01-01 Responsible Dept 国家标准委 Drafting Unit N/A