Developments of Environmental Certified Reference Material from the Brazilian Metrology Institute to Support National Traceability

This paper aims to present the developments performed by the Brazilian Metrology Institute NMI-Inmetro, considering the environmental demand. Inmetro addresses great part of its activities to the study of the traceability transference based on production and dissemination of certified reference material CRM of different areas in chemistry. It will be presented results from certification of the following reference materials developed: BTEX and PAH in solution, besides automotive emission gas mixtures and bioethanol. So, the achievements made are the growth in developing CRM, in order to support the needs of the national industry and to disseminate traceability among the society.