Spot-tests for TnBTO and AAC preservatives

IRG/WP 3279

D V Plackett

Nineteen indicator systems were examined as potential alternative spot-tests for preservative penetration in TnBTO- (bis-tributyltin oxide) or AAC- (alkyl ammonium compound) treated wood. Results indicated phenylfluorone as an acceptable alternative to pyrocatechol violet for assessment of TnBTO, and cobaltous thiocyanate or a bromocresol green/quinine sulphate mixture as alternatives to bromophenol blue for an AAC.


Keywords: TBTO; AAC; DETECTION; WOOD; PENETRATION; QUALITATIVE ANALYSIS; SPOT TESTS

Conference: 84-05-28...06-01 Ronneby Brunn, Sweden


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