Diffusion of chromium and fluoride in Rentex treated creosoted pole sections

IRG/WP 3659

D C R Sinclair, G M Smith, A Bruce, B King, H J Staines

A chromated fluoride preservative was applied by injection to the groundline regions of creosoted distribution pole sections and these were erected at a filed site in Scotland. Wood samples were recovered for chemical analysis at one week, two, five and twelve months after treatment. Small sample mass and destructive nature of the analysis necessitated modification of an alkali fusion technique to allow a single analysis for both fluroide and chromium. This paper details the methodology employed and reports on the extent to which diffusion of chromium and fluoride has occurred. The implications on the efficacy of the preservative formulation for use in distribution poles is discussed.


Keywords: CHROMIUM; COBRA METHOD; CREOSOTE; POLES; DIFFUSION; ENVIRONMENT; FLUORIDE; GROUNDLINE TREATMENT; MOISTURE CONTENT; RENTEX

Conference: 91-05-20/24 Kyoto, Japan


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