This document covers all of the major formulas likely to be encountered on  ET Level I and II exams. This document can be used together with the online calculators at eddycurrent.com/formulas, for  practice.  Note that the TI-30SX calculator shown on the website is the model currently used on ASNT online exams.  This is a digital product and will be emailed within a few hours of purchase.  Approximately 50 pages.