本帖最后由 lyklzy 于 2015-12-7 21:08 编辑
The manufacturer shall certify (签发证明) that each PT,MT examiner meets the following requirements.
所以,对第一卷,第八卷第一分册产品做MT,PT的检验人员也要有证,只是他们不需要像RT,UT那样要按照Manufacturer‘s written practice(SNT‐TC‐1A or CP‐189)have been qualified and certified.
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