NDT is a testing and analysis technique used by industry to evaluate the properties of a material, component, structure or system.

NDT standards and codes:

Here are the most commonly followed organizations in the world for creating NDT standards and codes:

• API (American Petroleum Institute)
• ASME (American Society for Mechanical Engineers)
• ASTM (American Society for Testing and Materials) 
• ASNT (American Society For Nondestructive Testing)
• COFREND (French Committee for Non-destructive Testing Studies)
• CSA Group (Canadian Standards Association)
• CGSB (Canadian General Standards Board)