Your search resulted in 110 documents. Displaying 25 entries per page.
Current models used by the European Health Authorities to evaluate the volatilization of active ingredients from treated wood used inside dwellings. A case study: Volatilization of azaconazole and propiconazole from treated wood
1990 - IRG/WP 3565
The use of wood preservatives inside houses may result in measurable aerial concentrations of active ingredients. These airborne contaminants may be inhaled by the inhabitants over periods lasting from a couple of days to several months. To assess the potential health hazard of preservative residues in the air, various risk-assessment models have been worked out. Three schemes, currently used by t...
A R Valcke, L Van Leemput
Comparison between the Hylotrupes bajulus strains of different European laboratories
1980 - IRG/WP 1118
In several European countries, wood preservatives of the same formulation are subjected for the quality label to particular tests according to standards established by the CEN. The different laboratories which carry out these tests have had their cultures for many years. The insects are kept in optimal nutritional and climatic conditions and have always mated amongst themselves. On the one hand, e...
M-M Serment
Incursion of Hylotrupes bajulus Linnaeus (European House Borer) into Western Australia
2005 - IRG/WP 05-10558
In January 2004, an adult Hylotrupes bajulus Linnaeus was detected emerging from a beam of Pinus pinaster in a house in Perth, Western Australia. The timber had been locally grown and milled. Surveys to define the extent of the infestation show it is restricted to dead pine trees in 28 sites around Perth. The biological and economic feasibility of eradication is being assessed. Since about 2001, k...
M Grimm
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
Questionnaire on the most important wood-destroying insects in your country and/or state
1980 - IRG/WP 1125
S Cymorek
Production of preservative-treated wood in some countries
1990 - IRG/WP 3598
This report presents figures of the production of preservative-treated wood and wood treated with anti-stain chemicals in 26 and 20 countries respectively from all over the world....
J Jermer
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
Natural durability of European wood species for exterior use above ground
2003 - IRG/WP 03-10499
The main interest in using more timber for exterior constructions is to protect the environment, where wood is considered an environmentally friendly material. However, chemicals for wood protection are getting more and more restricted, consequently, the focus on the natural durability of wood is increased. Good, well-documented data on the durability of wood species in ground contact exist, which...
B Lindegaard, N Morsing
Work programme of CEN/TC 38 (March 2000) and European publications
2000 - IRG/WP 00-20206
Remind of stage significance
Stage 32 : Working document existing and circulated in the technical body (TC, WG).
Stage 40 : Document available in the CEN/CS to start CEN/CENELEC enquiry (6 months).
Stage 43 : Second CEN/CENELEC enquiry started (2 to 4 months).
Stage 49 : Document available in the CEN/CS to start formal vote or ENV vote.
New scope of the CEN/TC 38
" Standardization of the nat...
R Hüe
Work programme of CEN/TC 38 (April 1999) and European publications
1999 - IRG/WP 99-20165
Scope of the CEN/TC38: Standardization of the characteristics of natural or conferred durability of wood and its derived materials against biological agents, including the characteristics of protection products and associated processes to obtain this durability. This applies in particular to: - the identification of hazard classes-, - the test methods (wood preservatives and treated wood and wood ...
R Hüe
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
Rapport sur l'activité du CEN/TC 38 "Méthodes d'essais des produits de préservation du bois"
1982 - IRG/WP 2188
M Pottevin
European laboratory termite testing
1986 - IRG/WP 1299
As with all testing of wood preservatives the evaluation of the resistance to termites of treated wood requires methodology which is approriate to, and can be readily extrapolated to, the practical situation. Thus not only must the variations in possible treatment systems be taken into account (eg dip, brush or pressure application) so too must the range of termite species and the type of exposure...
R W Berry
Wood protection processes in the Asean countries
1994 - IRG/WP 94-40034
This paper presents the wood processing practices in the Asean countries composing Indonesia, Malaysia, Philippines, Singapore, and Thailand except Brunei. The development of wood preservation industry in these countries started as early as 1922 to 1960. As in other industrial countries, treatment pressure with creosote of utility poles, railway sleepers, and marine pilings are the prime commoditi...
F R Siriban
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
Efficacy of deltamethrin associated with TCMTB and MBT for the temporary protection of timbers immediately following their sawing, in tropical countries
1987 - IRG/WP 1321
K-Othrine bois 2.5 "sciage"Ò containing 2.5 g/l of deltamethrin, 50 g/l of TCMTB and 50 g/l of MBT used at a 6% dilution controls effectively during the drying process of the freshly sawn wood, the insects attacking wet wood, the staining fungi and the rots. The protection lasts 4 months. The efficacy trials carried in 1985 and 1986 in the CTFT ("Centre Technique Forestier Tropical") of Abidjan, ...
J S Duguet, V Dartigues
Towards harmonisation of regional approaches for an International Standard for the approval of wood preservatives
1997 - IRG/WP 97-20122
Recent proposals from the European Standards body (CEN) for an ISO Standard on wood preservatives has initiated debate on whether there is any prospect of an acceptable common approach among ISO member countries, to a harmonised framework of hazard classes, with agreed supporting biological tests, leading to a unified rationale for demonstrating compliance with minimum performance standards for sp...
A F Preston, A F Bravery
The environment and the timber preservation in the Benelux countries
1990 - IRG/WP 3580
The environment has become a major issue in all industries. To focus on the timber preservation industry an analysis is made of the production chain. Suggestions are made for diminishing or excluding emissions of agents of pollution. After a review of the legislation in Holland, some important statements are made on the production process, the products involved and the waste materials. Finally raw...
C De Mey, R Leegwater
The natural durability of wood in different use classes
2003 - IRG/WP 03-10457
The natural durability of important European wood species has been tested on 3970 specimen in field trials. The wood was exposed at five test fields in Germany with different climates at each site in European hazard class 4 and 3 (with and without soil contact). Within EHC 3 it was distinguished between tree different expositions (end grain sheltered, unsheltered and with water trap).
The test is...
U Augusta, A O Rapp
Penetration of surface applied deltamethrin micro-emulsion formulations in four European timber species
1994 - IRG/WP 94-20030
The Netherland's Government, in line with many other European Governments initiated a programme (KWS2000) aimed at significantly reducing the emission of volatile organic compounds by the year 2000. As part of this programme a research project is currently underway to evaluate the potential for replacing organic solvent based remedial treatments with micro-emulsion formulations of the sam...
P Esser, W L D Suitela, A J Pendlebury
Eucalyptus globulus. Impregnability in relation with plantation and crop
1992 - IRG/WP 92-2402
Eucalyptus globulus Lasill is currently classified in Pr EN 350 on the basis of the characteristics of the first log. In practice, there are usually several following crops of branches developped on each stump in plantations. Up to a diameter of 8 cm, round wood of 2nd crop and further crops present a maximum of sapwood and characteristics which differ significantly from the basic classification a...
D Dirol
Evaluation of the european standard ENV 12038 for durability testing of plywood
2001 - IRG/WP 01-20237
The latest improved version of the standard ENV 12038 drafted as document N44 by CEN Technical Committee 38 (WG 7 - WG 23) is used to evaluate the effect of wood composition and structure on plywood durability. The method described is based on the agar-block test of the EN 113 standard used for the determination of the efficacy of wood preservatives and the assessment of the natural durability of ...
J Van Acker, M Stevens, E De Clercq
The WOODCARE project: Development of detection methods for Death watch beetle larvae and fungal decay
1999 - IRG/WP 99-20172
Woodcare was a European project coordinated by English Heritage. The aim of the research was to develop more targeted and more environmentally friendly treatment methods for Death watch beetle infections in Oak constructions of historical buildings. TNO has developed two new methods for fast and reliable detection of Death watch beetle larvae and related fungal decay in Oak. The problem with Death...
P Esser, P Van Staalduinen, A C Tas
The treatment of Douglas fir fence posts: specification and compliance using new European standards
1999 - IRG/WP 99-20178
New European standards for the preservative pre-treatment of timber require the results of the treatment process to be specified and subsequently verified by examination of the treated timber for penetration and retention of the preservative. For penetration, the standards are restrictive in that there are only a limited number of options available to the specifier. Thus for ground contact service...
R J Orsler, H Derbyshire
Research on wood protection at the Princes Risborough Laboratory 1975 & 1976
1977 - IRG/WP 3109
This paper is the latest of a 2-yearly series presenting a summarised account of the Laboratory's work in wood preservatives and related fields. The topics dealt with include: environmental studies on the usage of copper-chrome-arsenic and organic solvent preservatives; development of National and International Standards; recent developments in the preservation of external doors and windo...
J M Baker, R A Laidlaw, E R Miller, J G Savory