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This article displays how the photometry laboratory of the Portuguese Institute for Quality complies with the measurement traceability and method validation, the technical requirements 5.4 and 5.6 of the ISO/IEC 17025. After the presentation of the existing means and the way the metrological traceability is obtained, a short introduction to the internal validation of the measurement method is displayed for the luminous intensity, the illuminance and the illuminance responsivity.

Traceability and method validation in a photometry laboratory