BRE IP5/99 PDF

This Paper reports a study by BRE and industry of UK methods for quantifying retention of copper/chromium/arsenic and creosote in treated timber. It concludes that current methods are not wholly adequate and can cause uncertainties for specifier and treater. Unequivocal methods for sampling and analysis can be found. In addition, a common practical method for determining timber density is required since, to express retention, analytical results have to converted to kg/m3. This paper complements IP4/97 and updates IP9/96. It will interest specifiers, manufacturers and timber treaters.