Contract EV4V-CT90-0222 Peroxy acetyl nitrate intercalibration. Cost statement no 2. 1 May 1992 to 30 April 1993.

The PAN intercalibration project is a comparison of methods for calibrating PAN (peroxyacetylnitrate) standards. The progress report gives a short description of the activities from each participant for the period I May 1992 to 30 April 1993.