Your search resulted in 65 documents. Displaying 25 entries per page.
Minutes of the meeting of WG IV
1983 - IRG/WP 4104
IRG Secretariat
Analysis of organotin fungicides in wood preservative solutions and double-vacuum treated wood
1983 - IRG/WP 3250
A new analytical method using high-performance thin-layer chromatography (HPTLC), for the assay of organotin compounds in preservative-treated wood, is presented. The organotin compounds are extracted from the ground wood sample with a mixture of hydrochloric acid and ethanol. After HPTLC-separation, exposure of the thin-layer plate to ultraviolet light, and dipping of the plate into a 0.1% pyroca...
W Hintze, S V Ohlsson
The formation of organotin carboxylates in bis(tributyltin) oxide - treated Pinus sylvestris sapwood
1990 - IRG/WP 3618
Tributyltin compounds have been successfully used for many years as wood preservatives, although their chemical nature in timber have not been fully elucidated. This study by 119Sn and 13C NMR spectroscopy has shown that, on impregnation into Pinus sylvestris sapwood, bis(tributyltin) oxide, (Bu3Sn)2O, is rapidly converted to tributyltin carboxylates, Bu3SnOCO·R, via reaction with components of t...
S J Blunden, R Hill
An Australian test of wood preservatives. - Part IV: The condition, after 35 years' exposure, of stakes treated with creosote oils and oilborne preservatives
2000 - IRG/WP 00-30241
This paper contains the first results dealing with creosote oils and oilborne preservatives from this in-ground field trial in Australia. The substrates impregnated with preservative were Pinus radiata D. Don sapwood and Eucalyptus regnans F. Muell. heartwood and sapwood. Data are reported from stakes exposed for 35 years at three Australian sites (Innisfail, Sydney, Walpeup). Comparisons were mad...
G C Johnson, J D Thornton
Agenda WG IV
1991 - IRG/WP 4170
IRG Secretariat
Minutes of the Meeting of WG IV 1973
1973 - IRG/WP 403
IRG Secretariat
Agenda WG IV
1984 - IRG/WP 4110
IRG Secretariat
Minutes of the WG IV meeting 1976
1976 - IRG/WP 419
IRG Secretariat
Minutes WG IV
1992 - IRG/WP 92-4183
IRG Secretariat
Agenda WG IV
1977 - IRG/WP 425
IRG Secretariat
Minutes of the meeting of WG IV
1981 - IRG/WP 482
IRG Secretariat
Questionnaire regarding participation in IRG Sub-group IV
1982 - IRG/WP 1154
J P La Fage
Minutes of the meeting of WG IV
1988 - IRG/WP 4148
IRG Secretariat
Minutes of the Meeting of WG IV 1972
1972 - IRG/WP 401
IRG Secretariat
Minutes of the meeting of WG IV
1980 - IRG/WP 463
IRG Secretariat
Minutes of the meetings of WG IV
1987 - IRG/WP 4140
IRG Secretariat
Programme WG IV
1992 - IRG/WP 92-4179
IRG Secretariat
Agenda WG IV
1988 - IRG/WP 4147
IRG Secretariat
Agenda WG IV
1990 - IRG/WP 4164
IRG Secretariat
Agenda WG IV
1974 - IRG/WP 404
IRG Secretariat
Minutes of the WG IV meeting 1975
1975 - IRG/WP 413
IRG Secretariat
Stability and performance of tributyltin compounds
1984 - IRG/WP 3275
Based on the critical examinations of the disputable permanence of tributyltin compounds in wood, this paper deals with a number of examinations of the relative evaporation, thermal stability and oxidation stability of some TBT-compounds. While thermal and oxidative stability is high for all TBT-species, the relative evaporation at elevated temperature is highly variable, and lowest for the TBT-es...
F Imsgard, B Jensen, H A B Landsiedel, H Plum
Information from the COIPM Wood Group
1986 - IRG/WP 4130
The Chairman outlined the progress of the co-operative work "testing the resistance to marine borers of heat shrinkable polyolefin sheathings and of wood treated by vacuum/pressure with polymers (polystyrene)". The first part of the work has been started: the samples of wood wrapped with shrinkable polyolefin sheathings have been prepared and sent to the stations participating. The second part of ...
A Gambetta
Decrease of the antidecay resistance of beech wood treated with organotin fungicides after its natural ageing
1998 - IRG/WP 98-30185
The antidecay resistance of beech-wood samples (120 x 8.5 x 8.5 (MM)) treated with tributyltin fungicides gradually decreased due to prolongation of their natural ageing:
tributyltin fungicides (TBTO, TBTS, TBTCA, TBT-DEDTK were applied by pressure impregnation technique in ethanole solutions (c = 0. 1%, 0.33% or 1%);
treated beech-wood samples were naturally aged without their contact with grou...
L Reinprecht
An investigation of organotin compounds in treated wood using Mössbauer spectroscopy
1983 - IRG/WP 3249
The influence of sample preparation on the 119mSn Mössbauer spectrum of tributyltin chloride in ponderosa pine was investigated. Initial studies with sawdust and compressed discs concluded that the latter were clearly superior. Further studies showed that compressed discs prepared from 0.4 g of treated wood and 0.1 g of cellulose were robust and gave excellent Mössbauer spectra. The possibility ...
J N R Ruddick, J K Ingram