SUMMARY Workshop on Measurements and Standards for Biofuels: Enabling a Transition from Petroleum as a Vehicular Energy Source Rio de Janeiro, Brazil September 14-15, 2006 Background: Following up on the agreements reached at the US-Brazil Commercial Dialogue between Secretary Gutierrez and Minister Furlan held in Brazil on June 6, 2006, and the US- Brazil Ministerial Joint Commission Meeting held in Washington DC on July 21, 2006, the two sides agreed to explore cooperation in Metrology and Standards for Biofuels. As a first step, a workshop on “Measurements and Standards for Biofuels: Enabling a Transition from Petroleum as a Vehicular Energy Source”, organized by NIST and INMETRO (National Institute of Metrology, Standardization and Industrial Quality of Brazil), was held on September 14-15, 2006 in Rio de Janeiro. The participants represented government and private sector organizations from Brazil and the U.S. Ideas Discussed: The workshop focused on measurement and standards issues with regard to the production, distribution, and quality (calorific value, anti-corrosiveness etc.) of biofuels. The Brazilians shared experiences and raised measurement and standards issues that pose technical challenges to the shift from petroleum to biofuels. Technical areas for NIST-INMETRO cooperation identified at the workshop included: 1) Review of inconsistencies between ABTM (Brazilian), ASTM (US), EN (European) and ISO (international) documentary standards, both in terms of specifications and measurement conditions; 2) Definition of relevant measurands for determining fuel quality and their impact on materials performance; 3) Development of new performance based measurement methods; 4) Development of new Certified Reference Materials (CRMs) to assure the accuracy of measurements used to characterize biofuels; Action Plan: The following areas were highlighted as topics for future discussion: − Review of specifications for biofuels as commodity products; − Identification of new Reference Methods and CRMs to improve measurement reliability; − Critical evaluation of field methods for assessing fuel quality at the production site; − Review of available thermophysical property data relevant to processing and characterization of biofuels; − Impact of biofuels on corrosion properties of materials.
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