GB/T 23900-2009 Active National standards

GB/T 23900-2009 Non-destructive testing—Practice for measuring ultrasonic velocity in materials

Publish Date: 2009-05-26 Implement Date: 2009-12-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 23900-2009

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Basic standards and general methods

ICS Name: Non-destructive testing

Publish Date: 2009-05-26

Implement Date: 2009-12-01

Pages: 19 pages

Scope

This standard specifies the method of measuring the ultrasonic velocity in materials using Type A pulse reflection ultrasonic flaw detection equipment.
This standard describes a method of measuring the ultrasonic velocity in the material being tested by comparing it with the ultrasonic velocity of a reference material (test block) whose ultrasonic velocity is known.
This standard is applicable to solid materials with a thickness of 5 mm or more, and the parallelism between the two surfaces perpendicular to the direction of ultrasonic energy propagation should be within ±3°, and the surface roughness of the surface coupled with the ultrasonic probe should be better than 3.2μm.
More accurate results can be obtained using other specially developed ultrasonic instruments, auxiliary equipment, and specialized techniques. Appendix A lists several other methods of measuring ultrasonic wave velocity.