CABRAL, T.S.LARANJEIRA, A.S.POTIENS, M.P.A.SOARES, C.M.A.KHOURY, H.SAITO, V.DAVID, M.VIDAL, L.C.PIRES, M.A.2021-07-212021-07-212021CABRAL, T.S.; LARANJEIRA, A.S.; POTIENS, M.P.A.; SOARES, C.M.A.; KHOURY, H.; SAITO, V.; DAVID, M.; VIDAL, L.C.; PIRES, M.A. Comparison of calibration of surface contamination monitors with Brazilian Network - 2018/2019. <b>Journal of Physics: Conference Series</b>, v. 1826, p. 1-6, 2021. DOI: <a href="https://dx.doi.org/10.1088/1742-6596/1826/1/012039">10.1088/1742-6596/1826/1/012039</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/32032.1742-6588http://repositorio.ipen.br/handle/123456789/32032This work reports the results obtained from the comparison involving 7 laboratories in Brazil. This exercise is about the calibration service of surface contamination monitors. The monitor has been calibrated to BS ISO 7503-3, the calibration factor in terms of surface emission rate. The comparison was conducted by the Brazilian National Laboratory of Ionizing Radiation Metrology (LNMRI / IRD) from October 2018 to July 2019. The extensive sources used were 14C, 137Cs, 60Co, 90Sr/90Y, 36Cl and 241Am. The result of this proficiency test was excellent and proved the calibration capacity of the Brazilian network in the calibration service for surface contamination monitors.1-6openAccesscalibration standardsinterlaboratory comparisonsisoradiation protectionradiation sourcessurface contamination monitorsArtigo de periódico182610.1088/1742-6596/1826/1/0120390000-0002-4049-6720https://orcid.org/0000-0002-4049-6720Sem Percentil18.00