GB/T 31932-2015: Translated English of Chinese Standard. (GBT 31932-2015, GB/T31932-2015, GBT31932-2015): Method for electromagnetic automatic ultrasonic testing for thicker steel plates
https://www.chinesestandard.net, 2016 M09 12 - 11 pages
This Standard specifies the terms and definitions, general requirements, comparative samples, testing equipment, testing method, testing record and defect evaluation, steel plate grade, and inspection report, etc., of electromagnetic automatic ultrasonic testing for thicker steel plates. This Standard applies to the electromagnetic automatic ultrasonic testing for 6mm thickness below boiler, pressure vessels, bridges, construction, shipbuilding, pipelines, steel mold and other steel plates. The steel plate of other specifications can make reference to this Standard.
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Testing records and defect evaluation
Appendix A Informative Comparative sample production
5mm flat bottom accordance with GB/T alarm threshold automatic ultrasonic defect automatic ultrasonic testing Auxiliary facilities bottom hole DGS bottom hole wave bottom surface’s boundary or indicating calibration Comparative sample production comparative sample’s material DAC curve dB difference actual defect evaluation defect testing equipment defect testing level defect’s first reflected Demander’s requirements diameter 5mm flat difference actual measurement electromagnetic automatic ultrasonic electromagnetic ultrasonic defect electronic technology flat bottom groove flat bottom hole flawless location hole and artificial hole DGS curve holes 4 holes indicating length Non-destructive testing non-testing zone obtain the ultrasonic plate quality grade plate thickness professional qualification certificate record and defect reflected wave height report sign-off screen full scale Standard steel plate quality steel plate surface surface’s first reflected terms and definitions testing for thicker testing personnel Testing records testing result testing sensitivity testing steel plate testing system testing unit thicker steel plates ultrasonic defect testing width