Co-operative tests concerning the influence of solvent and drying method on the toxic limit of wood preservatives against Coniophora cerebella

IRG/WP 216

T Hof

In the working group II of the IRG it was agreed that more knowledge was necessary concerning the influence of the solvent on the toxic limit of organic solvent types of wood preservatives against Basidiomycetes. A test program was drawn up and after discussion in the mentioned working group the final program was accepted by the co-operating institutes in 1969. In the test program two fungicides, a pentachlorophenol concentrate and tributyltinoxide, solved in four different solvents were enclosed. Considering that an influence of the kind of solvent could coincide with the rate of evaporation thereof from the test blocks, also different drying methods were included for some solvents. Preliminary results of these co-operative tests have been given in a report presented on the meeting of the IRG Working group II in November 1971 in Brussels. At that time the tests were not yet completed and the results then available were not worked out in details. The complete test program is now finished and the results are given in this report.


Keywords: AIR-DRYING; CONIOPHORA PUTEANA; DRYING METHODS; PINUS SYLVESTRIS; FREEZE DRYING; FAGUS SYLVATICA; SOLVENTS; TOXIC LIMITS; TESTING

Conference: 72-10-26/28 Berlin (West), Germany (FRG)


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