EN 50491, all parts3 laboratories in United States are accredited by A2LA for at least one part of EN 50491. Each lab card shows which parts it holds. From the accredited scope text: “EN 50491-1; IEC/EN 50491-2; IEC/EN 50491-3; IEC/EN 50121-1; IEC/EN 50121-2; IEC/EN 50121-3-1; IEC/EN 50121-3-2; IEC/EN 50121-4; IEC/EN 50121-5; IEC/EN 12895 3; EN 55024; CISPR 24; EN 55035 3 (excludin” “EN 50491-5-1; EN 50491-5-2; EN 50491-5-3; EN 61326-1; EN 61326-1 (2013); IEC/EN 61326-1; IEC/EN 61326-2-1; IEC/EN 61326-2-2; IEC/EN 61326-2-3; IEC/EN 61326-2-6; EN/IEC 61800-3; EN/IEC 60730-2-9 (Secti” “EN 50491-5-2; EN 55103-1; EN 61000-6-3; IEC 61000-6-3; KS C 9610-6-3; EN 61000-6-4; IEC 61000-6-4; KS C 9610-6-4; CNS 13438 (up to 6 GHz); CNS 15936; ISO 7176-21; TCVN 7317:2003/BTTTT; QCVN 118:2018/B”
This page is a fixed slice of the register: every EN 50491 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.