Durable ABS plastic weld replica developed by AMPP, the Association for Materials Protection and Performance (formerly NACE), as a companion visual comparator used in conjunction with NACE SP0178 to determine whether welds are suitable for coating.
This visual comparator is used with NACE SP0178 (not included) to determine the degree of surface finishing of welds that may be specified in preparation for lining of tanks and vessels.
Conforms to NACE SP0178 - Appendix C