Handbook of Nondestructive Evaluation by 
Vibration-Based Condition Monitoring: industrial, aerospace, and automotive applications by 
Recommended practice no. SNT-TC-1A : personnel qualification and certification in nondestructive testing by This site contains links to third-party websites. These websites are provided only as a convenience to visitors and does not imply any endorsement of the linked sites by Nanyang Polytechnic. The linked sites are not under the control of Nanyang Polytechnic, and Nanyang Polytechnic is NOT responsible for the contents or communication of any linked site or any link contained in a link site.