论文部分内容阅读
1.背景美国无损检测学会SNT-TC-IA条例的发表,为无损检测人员资格鉴定和证书颁发书面文件的制订提供了准则。美国无损检测学会Ⅱ级人员资格鉴定和证书颁发
1. Background The publication of SNT-TC-IA regulations by the American Society for Nondestructive Testing provides guidelines for the qualification of non-destructive testing personnel and the preparation of written documents for issuing certificates. American Society for Nondestructive Testing Ⅱ grade qualification and certificate issued