ผลิตภัณฑ์โลหะ
เอกสารมาตรฐาน
ญี่ปุ่น
JSA
JIS G 0431 : 2009
Steel products -- Employer's qualification system for non-destructive testing (NDT) personnel
2009
19
JISf 2021 V.1
This Standard specifies a qualification system of employer for non-destructive testing (NDT) personnel performing the testing of the following steel products under the responsibility of employer: steel tubes; steel sheets, strips, rails, bars, sections, rods and wires.