Perforator method in balance

Abstract Application of the correction factor developed by to particleboards and fibreboards of moisture contents higher than 6·5% can lead to biased results in favour of low emission as the correction factor goes beyond offsetting the moisture effect. Moreover, the correction factor depends highly on the molar ratio of the resins used at the very low emission range. The correction factor leaves this fact unconsidered. The structure of the boards seems to have a pronounced bearing on the correlation between the perforator value and the emission detected in the chamber as a reference method. Nowadays, the industry needs a method that is able to differentiate between boards with minute differences in their emission. The results reported have been mostly unconvincing that the perforator method could cater for this purpose.