Your search resulted in 6688 documents. Displaying 25 entries per page.
Minutes of the meetings of WG II
1990 - IRG/WP 2360
IRG Secretariat
4th Report on condition of panels at Sekondi, Ghana
1978 - IRG/WP 445
F F K Ampong
Budget for 1998
1997 - IRG/WP 97-60080
IRG Secretariat
An interim report on trials with 'Boliden K33' and 'Celcure A' in water of different salinities in the Baltic Sea and in the UK
1974 - IRG/WP 406
It was felt necessary to undertake field trials using large test samples exposed in natural water of different salinity in order to determine preservative leaching and to assess the degree of biological attack....
R A Eaton, D J Dickinson
Reporting minutes of the Plenary Meeting 1997
1997 - IRG/WP 97-60085
IRG Secretariat
Programme Section 3 Wood protecting chemicals
1999 - IRG/WP 99-30210
IRG Secretariat
Oxalate production and calcium oxalate accumulation by Gloeophyllum trabeum in buffered cultures
1994 - IRG/WP 94-10075
Most basidiomycetous fungi produce oxalic acid as a result of their metabolic activities and nutrient procurement. There is currently a renewed interest in the role that oxalic acid may play in the decomposition of wood by basidiomycete fungi. It has been observed that although most wood degrading fungi have the capacity to produce oxalic acid, not all of these organisms express this capacity equa...
J H Connolly, J Jellison
High CCA retentions and the protection of eucalypt power poles
1983 - IRG/WP 3226
Tasmanian power pole material treated to high retentions, was analysed to accurately determine the amount of CCA preservative in the timber. Material from the same disc was subsequently exposed in unsterile soil in order to determine the effectiveness of treatment. Results showed that even at high retention levels, soft-rot attack was not prevented. Fourteen further poles were sampled, but this ti...
L E Leightley, J Norton
Soft rot tests
1983 - IRG/WP 2206
At the IRG meeting in Turkey it was proposed that developments in testing preservative-treated wood in unsterile soil according to techniques variously described as "fungus cellar", "soil-bed", or "accelerated field simulation" be considered along with conventional laboratory procedures as the basis for a standard test. Before formulating any co-operative test programme it is essential to examine ...
J A Butcher
Issues Facing Wood Preservation in New Zealand Today
2003 - IRG/WP 03-30326
In New Zealand, the three major issues facing the wood preservation industry today are:
Extension of use of LOSP preservatives, chiefly tributyltin naphthenate, for treatment of products in Hazard Class H3 exposed to the weather for which LOSP have not been traditionally used. Concerns have been expressed about the long-term durability of such products.
Restrictions on the use of CCA preservativ...
M E Hedley
A method for determining boron diffusion coefficients in wood
1999 - IRG/WP 99-30200
The radial unsteady-state diffusion coefficient for boron in southern yellow pine (Pinus spp.) was determined from measured concentration profiles using Egner's solution, a modified form of Fick's second law. The method uses a slicing technique to accurately determine concentration gradients with time in a single direction. The methodology should be applicable to any diffusible s...
J-B Ra, H M Barnes
Ground contact performance of wood treated by the MSU process
1990 - IRG/WP 3609
Environmental concerns have prompted a renewed interest in accelerated fixation schemes for CCA-treated wood. Results from stake tests of southern pine (Pinus sp.) treated using a conventional Bethell cycle are compared with matched stakes treated using the MSU Process. The effects of adding boric acid to the preservative formulation are also discussed. Differences among test plots are discussed....
H M Barnes, T L Amburgey, R W Landers
Evaluation and approval of wood preservatives. Unification of European requirements
1988 - IRG/WP 2310
This paper reviews the current activities within the European Homologation Committee for Wood Preservatives (EHC) towards unification of the requirements on evaluation and approval of wood preservatives in Western European countries....
J Jermer
The effect of ACC (Celcure) on durability of blue beech
1999 - IRG/WP 99-30209
Durability of the sapwood and heartwood of blue beech (Carpinus betulus) against white rot fungus (Coriolus versicolor) was studied. As treatment three concentrations of preservative (control or 0%, 3%, and 5% of ACC) were applied. The measuring 1.5x2.5x5cm3 as dimension of wood samples (sap and heartwood) was used. During 16 weeks exposure, untreated wood blocks were completely deteriorated by th...
S M Kazemi
Effects of heat treatment on water repellence and anti-swelling efficiency of beech wood
2002 - IRG/WP 02-40223
The heating of solid wood to higher temperatures is the simplest and the cheapest means for stabilizing its dimensions. For the investigation of the effect of thermal treatment on water repellency effectiveness and anti-swelling efficiency of beech wood (Fagus orientalis Lipsky), air-seasoned samples of beech wood were heated in presence of air at temperatures of 130 C, 150 C, 180 C and 200 C for ...
S Yildiz
Evaluation of the fire retardant efficacy and leach resistance of an amino resin fire retardant - Preliminary report
1983 - IRG/WP 3260
The Early Fire Hazard Indices of untreated Pinus radiata were determined by testing to Australian Standard 1530, Part 3 - 1976. Differences in the performance of heartwood and sapwood were noted, with heartwood samples giving higher Ignitability, Heat Evolved and Spread of Flame indices. The treatability of Pinus radiata with Pyrogard H was assessed, and backsawn sapwood treated more effectively t...
W D Gardner, P N Alexiou, P Lind, D Butler
Assessing the performance of wood preservatives from biological tests - the European approach
1994 - IRG/WP 94-20040
The impetus for the European Standardisation Committee to undertake the development of a performance standard for characterising the effectiveness of wood preservatives from biological tests, lies in the Construction Products Directive. This is effectively the European Community law which provides the basis for Construction Products to be traded across all member states without technical or regula...
A F Bravery
Guidance for corresponding members in preparing annual reports
2003 - IRG/WP 03-60178
IRG Secretariat
Programme section 4, Processes
1997 - IRG/WP 97-40096
IRG Secretariat
Members' and Sponsors' Directory 1993
1993 - IRG/WP 93-60001
IRG Secretariat
IRG 26 invitation
1995 -
IRG Secretariat
Fixation of chromated copper arsenate (CCA) wood preservative in Australian hardwoods: A comparison of three Eucalyptus species
1996 - IRG/WP 96-30107
New environmental guidelines for the management of CCA treatment plants were released in Australia in 1995. This has stimulated interest in techniques for controlling or accelerating the fixation of CCA in freshly treated timber products. The ability to understand, then effectively control and/or accelerate fixation of CCA in treated timber products can be an economic, technical and environmental ...
J Holmes
Review of Mold Issues in North America and Mold Research at Forintek
2003 - IRG/WP 03-10458
Over the last decade, air quality in homes and workplaces has become a high profile issue especially in relation to mold, receiving considerable media, public and legal attention. Forintek Canada Corp. and the wood industry in general have experienced large increases in inquiries regarding mold and the suitability of wood as substrate for its growth. Because wet wood supports growth of fungi the ...
A Uzunovic, A Byrne, Dian-Qing Yang, P I Morris
The preventive actions of three commercial wood preservatives against Dinoderus minutus
1984 - IRG/WP 1233
Dinoderus minutus is one of the most common pest insects for the bamboos. For preventing the damages of this insect, the preventive treatment of bamboos with preservatives is necessary. But because of the environmental reasons, only limited insecticides are available in Japan. The author determined the preventive effects of three commercial products against Dinoderus minutus by the medium of the B...
K Suzuki
The influence of gaseous oxygen concentration on fungal growth rates, biomass production and wood decay
1998 - IRG/WP 98-10283
The effects of air and several levels of oxygen balanced with nitrogen (% oxygen (v/v) nitrogen to 100%) on growth rates, biomass production and wood decay were investigated. The best technique for measuring daily growth rates in anaerobic jars was found to be by using 40 mm petri dishes which were attached to the walls of the jars. At the end of the test period the same petri dishes were also use...
S M Kazemi, D J Dickinson, R J Murphy