Measurement of the number and mass weighted size distributions of exhaust particles emitted from European heavy duty engines

Report no. 01/51: This study investigates the measurement of the mass and the number of heavy duty automotive particle emissions and their related size distributions. Limited additional test work has investigated the effect of sampling and measurement conditions on these distributions.

Two engines representing Euro 2 and Euro 3 technology were examined, using a selection of diesel fuels representative of European market quality.