标准试样: calibration sampleindex sampleproof samplereference test blockstandard samplestandard specimenstandard test ecimenstandard test piecestandard test specimen
Non - destructive testing - penetrant testing - part 3 : reference test blocks iso 3452 - 3 : 1998 ; german version en iso 3452 - 3 : 1998 无损检验.渗透检验.第3部分:标准试样块
3.
Welds in steel ; calibration block no . 2 for ultrasonic examination of welds iso 7963 : 1985 ; german version en 27963 : 1992 钢材的焊接点.焊接点超声波检验用的2号校准试样块