This NACE Standard (Recommended Practice) was prepared to provide guidelines for establishing standardized procedures for selecting test panels, preparing and painting the surfaces of panels, selecting test sites, and grading and evaluating panels in atmospheric exposure.  Such standardization procedures are needed for meaningful comparisons of paint panel tests.  The recommendations in this document apply only to atmospheric exposure and specifically exclude immersion testing and laboratory testing.  Standards and other recommendations relating to the procedures described herein are referenced in the body of this Recommended Practice.

This Recommended Practice for panel evaluation testing in atmospheric exposures was originally prepared by NACE Task Group T-6H-25 of Unit Committee T-6H on Coating Materials for Atmospheric Service, and later transferred to Task Group T-60-10 of Unit Committee T-60 on Quality Assurance of Protective Coating Materials and Their Application. The members of Task Group T-60-10 include representatives from consulting firms, users of protective coatings, and coating manufacturers. This NACE Standard is issued through Group Committee T-6 on Protective Coatings and Linings. This Standard provides minimum procedural guidelines for all parties concerned with the field performance evaluation of protective coating systems.  Historical Document 1981

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