Taiwan Provincial Standard of the People's Republic of China
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CNS 4123-1998
Scope
This standard applies to the materials, shapes, dimensions and ultrasonic testing and verification methods of type A2 standard gauge blocks for ultrasonic oblique beam testing. The gauge block is marked (STB-A2). Its main purpose is to set detection sensitivity.
CNS 4123-1998 history
1998CNS 4123-1998 Type A2 standard test block for ultrasonic angle beam testing