2 laboratories in United States are accredited by A2LA under ISO/IEC 17025 to perform ISO 3668 testing. From the accredited scope text: “ISO 3668 Paints And Varnishes -- Visual Comparison Of Colour Of Paints ISO 4628 Part 1 Part 1 - General Introduction and Designation System ISO 4628 Part 2 Part 2 - Assessment of Degree of Blistering” “ISO 3668; DIN EN 20105-A02; ASTM D2616; ISO 105-A02; ISO 105-A05 Condensing Humidity ASTM D1735; GMW14729 Corrodkote ASTM B380 Creepback GM 9102P; GMW15282; ASTM D1654 Degree of Blistering ASTM D714 D”
This page is a fixed slice of the register: every ISO 3668 scope we hold for United States. Search narrows it further by city, accreditation body, or a term from the scope text itself.
ISO/IEC 17025 is the international standard for the competence of testing and calibration laboratories. Accreditation to this standard provides independent confirmation that a laboratory operates a quality management system and is technically competent to produce valid results within its declared scope.