A Comparison Of EPA And EN Requirements For Nitrogen Oxide Chemiluminescence Analyzers
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367 - 374
J. Barberá, M. Doval, E. González, A. Miñana & F. J. Marzal
Nitrogen oxides analyzers currently used for measuring air quality in European countries meet the standard ISO 7996:1985, which does not establish any special feature for such equipment, except the analytical technique implemented. Nevertheless, most of them are designated as \“Reference methods” by the Environmental Protection Agency of the United States. Future European legislation in this matter establishes as reference method for measuring these pollutants that described in EN 14211:2005, where a number of tests for chemiluminescence analyzers are described. In this paper, we compare the requirements of both documents, evaluating the suitability of each and their approach. Keywords: chemiluminescence, nitrogen oxides, EPA, type approval tests, EN 14211:2005. 1 Introduction Following the \“Better Regulation” initiative for updating and simplying community legislation, the Proposal for a Directive on ambient air and cleaner air for Europe  aims at integrating in a single document the Directives 96/62/EC , 99/30/EC , 2000/69/EC , 2002/3/EC  and the Decision 97/101/EC . Moreover, the Proposal establishes the complete control of particulate matter (PM2.5) and also stipulates new reference documents for the measurement of regulated pollutants in air, as shown in table 1. The standards of the Proposal of Directive, except for those related to particulate matter and lead, include a new and wide-ranging section about
chemiluminescence, nitrogen oxides, EPA, type approval tests, EN 14211:2005.