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

Abstract

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.

Validation and Comparison of Calibration Techniques for Measurements of Carbon Dioxide in Atmospheric Air Standards

“…Aiming to integrate Inmetro's mission to promote citizens' quality of life and the challenges of global metrology with regard to air quality analysis, the Gas Analysis Laboratory (Lanag) has been working for the development and certification of mixtures of standard gases destined to atmospheric and air quality monitoring [2] [3] [4] [5]. In this way, the objective of this study is the development of methodologies either by cavity ring down system (CRDS) and by gas chromatography with a flame ionization detector coupled to a methaniser catalyst (GC-FIDmeth), and its posterior comparison of results of method validation.…”