Use of proficiency testing schemes for motorcycle exhaust emissions laboratory: Brazilian experience

In this work, the Proficiency Testing Scheme (PTScheme) was used for evaluation of the motorcycle emissions laboratories to measure the emission levels of this kind of vehicle, supplying subsidies to the laboratories to identify and solve analytical problems and contributing for the measurement harmonisation in the country. The PTScheme of automotive emissions is a type of study, provided only in Brazil, and it was the first time that this procedure was carried out for motorcycles. Such proficiency tests showed satisfactory results and shows the importance for the industry, society and environment.