中華人民共和國國家標準
NATIONAL
STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 28880-2012
Non-destructive testing - Evaluating performance characteristics of ultrasonic pulse-echo testing systems without the use of electronic measurement instruments 無損檢測 不用電子測量儀器對脈沖反射式超聲檢測系統性能特性的評定
Issued Date:2012-11-05
Implemented Date:2013-02-15
Issued by:
The Standardization Administration of the People's Republic of China