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国家机械工业局文件国机管 [2 0 0 0 ]2 3号文“关于废止《X射线机用直流高压电缆》等 2 2 6项机械行业标准的通知”中涉及无损检测标准的有两项 ,即JB/T41 2 5- 1 985《超声波检验用铝合金参考试块的制造和控制》和 JB/T 791 3- 1 995《超声波检验用钢制对比试块的制作与校验
State Bureau of Machinery Industry documents [2 0 0] 23 No. “on the abolition of” X-ray machine DC high voltage cables “and other 226 machinery industry standards notice” involves two non-destructive testing standards , That JB / T41 2 5- 1 985 “Preparation and Control of Aluminum Reference Testers for Ultrasonic Testing” and JB / T 791 3- 1 995 "Preparation and Verification of Comparative Test Blocks for Steel for Ultrasonic Testing