Vol. 8, No. 1 • January 2009Q. I’m new to this. What methods are now included in SNT-TC-1A? I got a few from write-ups for SNT-TC-1A in ShopASNT, but I need a full listing. N.F., Garland, TX. A. The 2006 edition of Recommended Practice No. SNT-TC-1A covers the following methods: acoustic emission testing, electromagnetic testing, laser testing, leak testing, liquid penetrant testing, magnetic flux leakage testing, magnetic particle testing, neutron radiographic testing, radiographic testing, thermal/infrared testing, ultrasonic testing, vibration analysis and visual testing. CORRECTION: F.N. of Morristown, N.J. pointed out an error in the October 2008 “Inbox.” In response to the question regarding equivalent eye exams, TNT stated that Canadian NDT certification standard CAN/CGSB 48.9712:2006 required near visual acuity of Jaeger J-1. Our reader noted that the CGSB standard requires Jaeger J-2, not Jaeger J-1. A subsequent check of CGSB eligibility requirements at http://ndt.nrcan.gc.ca/eligibility_requirements_e.htm, found that he was correct. The near vision requirement for all NDT Levels is Times Roman N4.5, (Jaeger J-2). We apologize for the error. Thanks to our reader for bringing it to our attention.
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