Your search resulted in 3490 documents. Displaying 25 entries per page.
Ecotoxicological risks of anti-sapstain preservatives washed off from treated timber
2000 - IRG/WP 00-50144
A field method for ecotoxicity assessment of rain water wash-off from anti-sapstain treated timber was developed. In the course of this study freshly sawn timber treated with 1.5% Busan 30 L (reference preservative) and a control stack with untreated pine were exposed to weathering. The run-off water was ecotoxicologically tested with organisms from three trophic levels (Vibrio fischeri, Kirchneri...
G Aschacher, R Gründlinger
Report on a field demonstration of methods for detecting defects in wood poles
1984 - IRG/WP 2232
P I Morris, H Friis-Hansen
Detection of brown rot decay in wood by ion mobility spectrometry
1991 - IRG/WP 2377
A test method for the detection of brown rot decay in wood is described and involves a two-step procedure: thermal release of vapours from wood samples followed by analysis using Ion Mobility Spectrometry (IMS), with results being obtained in 5-10 seconds. The advantages, limitations as well as the detection limit of the technique are presented....
A H Lawrence, T Nilsson
Preventive action against fungal decay: A comparative experiment on the effects of natural and artificial infection of wood by Basidiomycetes
1981 - IRG/WP 2160
M Fougerousse
Report on Sub-group 5 in Raleigh, 6 May 1980
1980 - IRG/WP 1123
S Cymorek
Use of biossay to determine CCF and CCB preservative retentions in treated Pinus sylvestris
1984 - IRG/WP 2216
The retention of each a copper/chromium/boron and copper/chromium/fluoride preservative in pressure treated pinepoles was tested by bioassay using Aspergillus niger as test fungus. Small samples of 5 mm³ were taken from various depth of the poles and placed on potato-dextrose agar plates. The inhibition of fungal growth depends on the preservative retention in the cubes and corresponds closely to...
J C Moreschi, H Willeitner
Treatment of dried sawn spruce and redwood building timbers with water-borne preservatives under a scheme for the quality control of the preservation and preserved wood in the Netherlands
1978 - IRG/WP 3123
Treatment of dried sawn spruce and redwood Building Timbers with water-borne preservatives under a scheme for the quality control of the preservation and preserved wood in the Netherlands. The aim of this article is to give the reader a modest description of the evaluation of fundamental research in wood preservation into a practical application....
H F M Nijman, N Burgers
Reliability-based service life prediction methodology for assessment of water protection efficiency for coatings on wood
2003 - IRG/WP 03-20268
Assessment of water protection efficiency according to EN 927-5 has been shown to give significant differences in water absorption values for different types of coatings on wood. It is shown that the combination of EN 927-5 and an artificial weathering procedure gives more information regarding expected durability and long-term performance than a single measurement of water absorption on fresh, un...
J Ekstedt
Performance of untreated French Guianan piling in marine exposure
1992 - IRG/WP 92-4173
Round piling of seven French Guianan species, greenheart, and preservativ-treated Southern Pine were installed as fender piling in Key West, FL. After 12½ years, none of the tropical hardwoods performed as well as dual-treated Southern Pine. Of the hardwoods, kouata patou and maho noir were the most resistant to decay and marine borers....
B R Johnson
United States Federal Committee on Wood Protection
1971 - IRG/WP 43
A C Jewett
Exposure monitoring of creosote vapors
1989 - IRG/WP 3511
Creosote oils contain hundreds of compounds. During impregnation and handling of treated wood the main component in the vapors released in air is naphthalene. Other main components are alkyl naphthalenes, indene, phenol and its methyl derivatives, benzothiophene, diphenyl, acenaphthalene and fluorene. In the measurement of creosote vapors, naphthalene can be used as an indicator agent. One of the ...
P Heikkilä, M Loutamo, V Riihimäki, M Romo
Chemical investigation of 23-year-old CDDC treated southern yellow pine
1997 - IRG/WP 97-30141
The effect of 23 years exterior exposure on CDDC treated southern yellow pine was evaluated by the application of solid state analytical instrumentation. Analytical methods including environmental scanning electron microscopy (ESEM),energy dispersive X-ray analysis (EDXA), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), inductively coupled plasma (ICP) and atomic absorption spectr...
D P Kamdem, C R McIntyre
Tentative method of testing wood preservatives against blue staining
1977 - IRG/WP 259
The blue stain of sawn wood is still a real problem in Poland. Although a preservative based on sodium orthophenylphenoxide has been introduced into sawmill practice, and the technology of wood protection developed with it, new information has been obtained concerning blue stain in wood material destined for export. In order to select new chemicals or to improve the effectiveness of the ones in cu...
E Tarocinski, O Lewandowski, M H Zielinski
Sequential exposure of borate treated Douglas-fir to multiple Formosan subterranean termite colonies in a 40-week field test
1993 - IRG/WP 93-10006
Douglas-fir boards (ca. 74.5 g) pressure-treated with disodium octaborate tetrahydrate (DOT) retentions of 0 (controls), 0.88, 1.23, 1.60, or 2.10% (weight/weight) DOT were sequentially exposed to four active field colonies of Formosan subterranean termites, Coptotermes formosanus Shiraki (Isoptera: Rhinotermitidae), in an above-ground field test. Samples were placed in contact with each colony fo...
J K Grace, R T Yamamoto
A short note on fungal decay in K33-treated poles
1982 - IRG/WP 1169
Soft rot cavities and erosion of the lumen have been found in K33-treated Pinus sylvestris poles from the years 1956-66 by microscopic studies. Poor treatment quality has been proved for some of these poles. The microscopy showed an unusual pattern of attack, and pre-treatment decay is suspected but not yet proved. Sounding the poles and using the Pilodyn indicated decay, but poking did not. Quant...
H Friis-Hansen
IRG test of preservative-treated hardwoods with particular reference to soft rot. Report on condition of specimens installed in Victoria, Australia
1983 - IRG/WP 3269
G C Johnson, J D Thornton
Marine borers and marine wood protection - Some answers and some outstanding questions - A comment
1990 - IRG/WP 4163
A brief description of the nature of hazards encountered in different parts of the marine environment is given. An attempt is then made to assess what were the essential findings of selected areas of research in the marine wood protection field and what still needs to be done. That is, if we are to more adequately understand what we are attempting to do in this field of study!...
J E Barnacle
Depletion of wood preservatives after four years' marine exposure in Mt. Maunganui harbour, NZ
1994 - IRG/WP 94-50036
This paper reports on chemical analysis of marine test samples exposed in Mt. Maunganui harbour, New Zealand from 1977 to 1981. Depletion data for a Class II CCA, a CCA-A formulation, acid copper chromate and ammoniacal copper arsenate are presented. The results suggest differences in the rate of loss of individual preservative components among the four formulations and redistribution of individua...
K J Archer, A F Preston, C M Chittenden, D R Page
The resistance of fifteen Indonesian tropical wood species to the powder post beetle Heterobostrychus aequalis
1990 - IRG/WP 1429
A preliminary laboratory test on the resistance of 15 tropical wood species to Heterobostrychus aequalis has been carried out using small samples of 7.5 x 5 x 1.5 cm³. The results reveal that Pinus merkusii and Agathis borneensis are very susceptible to Heterobostrychus aequalis. Other 13 species vary between susceptible to resistance There is no signifisant relation between starch content and th...
Jasni, Nana Supriana
An investigation into the stability of TBTO in LOSP-treated radiata pine
1987 - IRG/WP 3459
Nuclear magnetic resonance (NMR) spectroscopy and reverse phase paper chromatography were used to characterise the organotin compounds found in radiata pine treated with bis (tri-n-butyl) tin oxide (TBTO). Preliminary results indicate that the preservative is remarkably unstable in wood after light organic solvent preservative (LOSP) treatment. Significant decomposition of TBTO occurs in a matter ...
K J Archer, R Meder
Natural durability and basic physical and mechanical properties of secondary commercially less accepted wood species from Brazil
2002 - IRG/WP 02-10451
The natural durability towards basidiomycete fungi and termites of several secondary timber from Brazil (Vatairea sp., Hymenolobium sp., Inga sp., Manilkara sp., Caryocar sp., Terminalia sp., Apuleia sp.) has been evaluated according to the EN 350-1. Some basic physical and mechanical properties (density, shrinkage, hardness, colour, static strength in flexion and compression) were also measured a...
M-F Thévenon, A Thibaut
Improved resistance of Scots pine and Spruce by application of an oil-heat treatment
2000 - IRG/WP 00-40162
Spruce (Picea abies L. Karst.) and Scots pine (Pinus sylvestris L.) were subject to a heat treatment which was carried out in an oil-bath. The aim was to improve the dimensional stability of the treated wood and its resistance against fungi. The bath of vegetable oil provides a uniform heat transfer at temperatures of 180°C, 200°C and 220°C and protects the submersed wood from oxygen. Heat trea...
M Sailer, A O Rapp, H Leithoff
Some wood-destroying Basidiomycetes. Volume 1 of a collection of monographs
1981 - IRG/WP 1121
One of the first tasks of the International Research Group on Wood Preservation, when it began its work in 1969, was to compile a series of reports on the common decay fungi which can attack wood. This volume, which contains the first of these reports, has been compiled with the help of mycologists and wood preservation specialists in France, Ghana, the Federal Republic of Germany, the Netherlands...
R Cockcroft
The Fifth Annual Report of the International Research Group on Wood Preservation 1973-1974
1974 - IRG/WP 531
IRG Secretariat
Model questionnaire for preparation of monographic cards for wood-destroying fungi
1972 - IRG/WP 103
C Jacquiot