NACE 3T 199:2012

Analyzes the various techniques for assessing corrosion in the field. New topics included in this revision are: long-range ultrasonic testing (UT), fiber optic strain gauges; high-resolution electrical resistance (ER), a new method of hydrogen probe monitoring, and extended-analysis coupons. The report is divided into discussions of direct techniques, both intrusive and nonintrusive, and indirect techniques, both online and off-line. It provides an understanding of the practical aspects of each technique, and is also helpful in assessing less commonly used techniques, or the implications of using a familiar technique in a totally different operating environment