Wood preservation requirements in Queensland, Australia
L E Leightley, M J Kennedy
In Queensland the preservative treatment and utilization of timber must comply with the Timber Users' Protection Act. Preservative retention levels and penetration patterns must be complied with. Analytical zones are specified for removing samples for chemical analysis of preservative retention. The required retention levels have been expressed as percent weight of oven dry wood weight. This specification has allowed the same retention figures to be equally effective in preserving timber species of differing densities.