Design and analysis of ultrasonic inspection proficiency testing for defects inside forgings
The laboratories that participated in proficiency testing of ultrasonic inspection of defects inside forgings were as-sessed and analyzed.Firstly,the z-score statistics were carried out based on the results returned from the laboratories.Then the factors affecting the accuracy of the test results were analyzed and summarized.Moreover,the data of questionable and unsatisfactory laboratories were analyzed.Through the implementation of proficiency testing scheme,the testing level of rel-evant domestic laboratories could be reflected truly and objectively.It could also help the laboratories find out the problems in the daily testing and further improve the internal quality control,thus improving the testing level.This study provided basis for the laboratory supervision by the laboratory certification and accreditation management department.
NETL
NSTL
万方数据
