Second EC-JRC aromatic compounds intercomparison with automatic analyser

This report presents the results of the second intercomparison for BTEX automatic analysers carried out by the JRC on the 17-19 June 2008. Seven national reference laboratories participated in this exercise. Six concentrations levels were tested during the intercomparison, ranging from circa 3 to 50 μg/m3, for benzene. With respect to the first intercomparison carried out in 2005, the reference value was assigned by ERLAP and the exercise was evaluated according to ISO 13528 methodologies for the evaluation of interlaboratory proficiency assessment and the recommendation of the protocol N37 of the AQUILA network. Participating laboratories are identified as requested by the AQUILA for further actions.