Your search resulted in 62 documents. Displaying 25 entries per page.
Proposal for further work on environmental questions
1988 - IRG/WP 3494
Although very much is known about the environmental and health and safety aspects on various wood preservatives and treated wood knowledge is still lacking on some important issues. Some examples are: - The fate of wood preservatives in the environment, eg by leaching from treated wood and contaminated soil; - How big is the "problem" of pollution, etc from the wood preserving industry in comparis...
J Jermer, M-L Edlund
Collaborative tests on the influence of solvent and drying method on the toxic limit of wood preservatives against Basidiomycetes
1974 - IRG/WP 248
Seven institutes from five countries, Austria, England, France, Germany and the Netherlands have collaborated in a study on the influences of solvent and drying method on the toxic limits of wood preservatives against Basidiomycetes tested according to the agar-block method. Two preservatives, a 25% pentachlorophenol-concentrate and tributyltinoxide were applied to pine sapwood and beech and teste...
T Hof
Co-operative research project on L-joint testing. Progress report to May 1989
1989 - IRG/WP 2338
Further sets of data received from STU (Sweden) after 36 months exposure and Sipad-IRC (Yugoslavia) after 45 months exposure are presented and discussed in conjunction with data reported previously. The new data are generally in agreement with those presented previously and the major difference between institutes continues to be one of rate of colonisation rather than any relative difference in pe...
J K Carey, A F Bravery
Collaborative soft rot tests: Results of analyses of soil samples
1976 - IRG/WP 263
C R Levy
Collaborative soft rot tests: Proposed amendments to Document No: IRG/WP/208
1973 - IRG/WP 224
J K Carey, J G Savory
Progress report on collaborative experiments on testing with basidiomycetes
1982 - IRG/WP 2184
The present Document reviews results provided by participants as at 1 May 1982 and draws preliminary conclusions....
A F Bravery
Final proposals for collaborative work on laboratory soft rot testing
1987 - IRG/WP 2292
In this paper proposals are made to scope, timbers, preservatives, leaching, drying, soil type, moisture content, soil burial (blocks and stakes), incubation and dry weight determination and the expression of results....
D J Dickinson, S M Gray
Virulence tests with fungal strains used in EN 113 CEN ring test. Results with Coniophora puteana (Schum.ex Fr.) Karst
1986 - IRG/WP 2249
D Dirol
Proposals for a field experiment to determine the performance of preservative treated hardwoods with particular reference to soft rot
1975 - IRG/WP 342
It is proposed to treat a series of hardwood stakes in the UK and install them in different sites around the world. The stakes will include 3 reference species common to every site and 2 locally selected species. The hazard of termites should be avoided in order to limit the study to action of micro-organisms....
D J Dickinson
Co-operative research project on L-joint testing. Progress report to March 1984
1984 - IRG/WP 2211
Each participant was intended to expose L-joints in the main trial on 1 April 1983 and the first sampling, after 8 months exposure, was to be undertaken on 1 December 1983. Some participants have had to vary this schedule. Results are presented from CTFT (France) and PRL (United Kingdom). These show a greater effectiveness by the double vacuum treatments compared with the 1 minute dip treatments. ...
J K Carey, A F Bravery
Defining fungal decay types - Final proposal
1988 - IRG/WP 1355
The term soft rot is proposed for all forms of decay caused by Ascomycetes and non-basidiomyceteous Fungi imperfecti. The terms brown rot and white rot should be used only for decay caused by Basidiomycetes. Brown rot is characterized by extensive depolymerization of the cellulose and limited lignin degradation. White rot is characterised by significant degradation of the lignin component in wood....
T Nilsson
Collaborative soft rot experiments 1974. Preliminary analysis of results
1975 - IRG/WP 251
J K Carey, J G Savory
Collaborative soft rot tests: Paper for discussion in Working Group II
1970 - IRG/WP II 5A
An account of the major part of the collaborative work on laboratory tests of toxicity of preservatives to soft rot fungi initiated by the European Homologation Committee at Delft in 1966 has been published in ‘Material und Organismen’ (1970) as a report of progress. The main objective of these collaborative tests, namely to establish a reliable and acceptable standard test method was not acco...
J G Savory, A F Bravery
Final proposals for a field experiment to determine the performance of preservative treated hardwoods with particular reference to soft rot
1976 - IRG/WP 367
A series of hardwood stakes have been prepared and treated in the UK from samples (mainly sapwood) supplied from participants around the world. The stakes include 4 reference species common to each site and, in most cases, at least 2 local species of importance. The treated stakes will be despatched to the co-operating scientists and installed under local conditions. It is hoped that with periodic...
D J Dickinson
Will political initiatives stop the use of preservative-treated wood in Sweden?
1990 - IRG/WP 3578
The Swedish government has initiated several investigations on how to reduce the use of different chemicals. Among these chemicals are creosote, arsenic, chromium and organotin. A special investigation was carried out concerning wood preservatives resulting in different proposals on how to reduce the use of preservatives and preservative treated wood. The most important proposals were an "environm...
J Jermer, M-L Edlund
Hardwood field experiment - 10 year report
1989 - IRG/WP 3560
The international hardwood field experiment was planned in 1976 and set up in some 34 different sites around the world. The test stakes include 4 reference species common to each site and in most cases at least 2 species of local importance (supplementary species). It was hoped that a picture of performance of a range of economically important timber species would be built up and at the same time ...
D J Dickinson, S M Gray
Report on the co-operative leaching tests
1975 - IRG/WP 246
The Work reported here was undertaken at the request of CEN to see (1) whether the standard beaker leaching method under discussion at CEN, and based on the German DIN could be made less labour intensive; and (2) whether the leaching parameters could be expressed in more general terms so that alternative procedures could be used. A co-operative experiment was set up in which the amount of leaching...
J W W Morgan
Blue stain in timber in service. Results of further IRG collaborative tests to compare different artificial weathering systems
1981 - IRG/WP 2146
The previous work described in Document No IRG/WP/286 examined 3 preservatives (1% phenyl mercury succinate - PMS, 5% pentachlorophenol - PCP and 1.5% Preventol A4 - PA4) subjected to 5 different artificial weathering systems (BAM Xenotest, Cuprinol Marr, EMPA Xenotest, Gori Atlas and PRL Marr) and after natural weathering at 5 sites (BAM, Cuprinol, EMPA, Gori and PRL). Results showed good correla...
A F Bravery, D J Dickinson
Collaborative field trial out-of-ground contact
1982 - IRG/WP 2179
At the 12th meeting of the IRG in Sarajevo, Yugoslavia it was decided after considerable discussion that the best way to proceed with the work of the subgroup was to centre it around a co-operative field trial based on the L-joint test detailed in IRG/WP/2157. At the same time it was agreed that interested laboratories would also conduct their own methods, particularly the German planner test and ...
D J Dickinson, A F Bravery, J K Carey
Co-operative research project on L-joint testing. Sampling after 18 months exposure
1984 - IRG/WP 2233
In September 1983, Document No: IRG/WP/2208 was distributed giving guidance on sampling after 8 months exposure (due 1 December 1983 for those L-joints exposed on schedule on 1 April 1983), and including tables on which to record the test results. No major problems have been notified to Princes Risborough Laboratory concerning the sampling method. It is therefore proposed that the next sampling, a...
J K Carey, A F Bravery
Experiences with the OECD guideline proposals for the estimation of emissions from preservative-treated wood in the environment
2004 - IRG/WP 04-50209
The practicability of 2 CEN proposals for OECD guidelines on the estimation of emissions from preservative treated wood by laboratory methods for either wood held in storage after treatment and for wooden commodities that are not covered, and are not in contact with ground (guideline 1) or
wooden commodities that are not covered and are in contact with ground, fresh water or seawater (guideline 2...
U Schoknecht, R Wegner, E Melcher
Co-operative research project on L-joint testing. Progress report to March 1986
1986 - IRG/WP 2272
Further sets of data received from CTFT (France) after 18 months exposure, BAM (Germany) after 18 months exposure, STU (Sweden) after 9.5 months exposure and TI (Denmark) after 12 and 17.5 months exposure are presented and discussed in conjunction with data previously reported. The new data are generally in agreement with those presented previously and indicate the major difference between the co-...
J K Carey, A F Bravery
Artificial weathering as an aid to assessing the effectiveness of chemicals for preventing blue stain in service - a co-operative study
1984 - IRG/WP 2215
The paper reports co-operative studies carried out within Working Group II of the International Research Group on Wood Preservation to assess the effects of different artificial weathering systems on the performance of fungicides to control blue-stain in service. It has been shown that Atlas, Xenotest and Marr equipments operated according to particular standard schedules can give essentially the ...
A F Bravery, D J Dickinson
Co-operative research project on L-joint testing. Progress report to March 1985
1985 - IRG/WP 2236
It was originally intended that each participant would expose L-joints in the main trial on 1 April 1983 with the first sampling at 8 months (1 December 1983) and the second sampling at 18 months (1 October 1984). In the event, some participants have had to vary this schedule. Results after the first sampling have been received from CTFT (8 months), BAM (12 months) and Sipad-IRC (8 months) and aft...
J K Carey, A F Bravery
Collaborative soft rot tests: Statistical treatment of results of soil analyses
1971 - IRG/WP 29
Institutes taking part in the collaborative experiments already reported forwarded samples of the soils employed in the tests to the Forest Products Research Laboratory, England. The soils were then autoclaved sterilised under uniform conditions and sent to the Department of Forest Soils, the Royal College of Forestry, Stockholm, Sweden. The results of the soil analyses are given in Table 1, toget...
A F Bravery