Your search resulted in 326 documents. Displaying 25 entries per page.
Biocidal Products Directive 98/8/EC and PT 08
2005 - IRG/WP 05-50224-1
The ECB Biocides Work Area is responsible for the scientific and technical
issues concerning the approval of active substances in biocidal products as
laid down in Directive 98/8/EC concerning the placing of biocidal products
on the market. The first part of the presentation will deal with the Review
Programme, especially it's legal context, the status of submitted dossiers
and the p...
K van der Jagt
Co-operative tests concerning the influence of solvent and drying method on the toxic limit of wood preservatives against Coniophora cerebella
1972 - IRG/WP 216
In the working group II of the IRG it was agreed that more knowledge was necessary concerning the influence of the solvent on the toxic limit of organic solvent types of wood preservatives against Basidiomycetes. A test program was drawn up and after discussion in the mentioned working group the final program was accepted by the co-operating institutes in 1969. In the test program two fungicides, ...
T Hof
"XYLOPHENE ANTI-TERMITES" :A complete range of treatment products against termites
2000 - IRG/WP 00-30230
Dyrup-Xylochimie purpose for several years efficient treatment products for timber and wood materials, with its trade mark : "Xylophèn". As everybody know, termites become an important problem for construction in France. So important that, a national law was voted in May 1999, to define areas where termites are present, in order to protect future landowner. To prevent efficiently termites damages...
L Cubizolles, E Wozniak
Diagnostics methods and routes proposalsto define selective sorting of demolition wood wastes
2001 - IRG/WP 01-50177
Wood wastes are more and more often used in different wood waste valorisation industries (panels, wood energy, cement factories, ...). These industries are in progress to include in their processes, wood wastes coming from demolition wood. A state of the art and an analysis have been made to propose : (1) diagnostics methods to carry out a classification of wood wastes on demolition sites and in t...
G Labat, E Bucket, C Fréret, G Deroubaix
Relating CCA fixation to leaching of CCA components from treated products
1995 - IRG/WP 95-50045
The relationship between chromium fixation in CCA-C treated wood, as determined by CrVI analysis of solution expressed from treated wood and the leaching of Cu, Cr, As and CrVI in a simulated rain test are evaluated for dimension lumber (2"x6") and pole sections. Leachate concentrations after 2 hour exposure to a misting spray (about 300 mm cumulative rainfall) decrease rapidly with increased degr...
P A Cooper, R MacVicar, Y T Ung
Methods of testing anti-stain chemicals for protecting sawn timber during storage and transport
1976 - IRG/WP 273
No international standard method for testing anti-stain chemicals for protecting fresh sawn timber exists. The methods used can be divided into three types: a) Rapid screening tests for finding chemicals effective against blue-stain and mould fungi. The chemicals are tested in agar medium, in pieces of filter paper or on small pieces of wood using pure cultures. b) Laboratory tests for evaluating ...
T Vihavainen
What is OECD doing to promote harmonization of biocide regulations
1999 - IRG/WP 99-20182
OECD began work on biocides in 1997 to help Member countries co-operate in the assessment and registration of these products. The work is a part of OECD's Pesticide Programme, and is co-ordinated by the Biocides Steering Group. The goal is to harmonize regulatory approaches to allow countries to conduct evaluations of biocides more efficiently. More efficient evaluations can advance the p...
M Paneli, N Grandy
Leaching from field test stakes. Results from two different methods of analysis
1993 - IRG/WP 93-50013
Field test stakes treated with Boliden K33 containing copper, chromium and arsenic exposed at three different fields in Sweden and rejected due to decay, have in two studies been analysed regarding leaching and remaining preservatives. The stakes have been exposed during 20 to 43 years. The density of the stakes and content of copper, chromium and arsenic have been determined in the top part of th...
F G Evans, M-L Edlund
Survey of North American practice in conditioning forest products before preservative treatment
1972 - IRG/WP 308
Seasoning requirements for the wide range of forest products which are treated with preservatives and fire retardants must be capable of dealing with a very complex set of conditions which are summarized under a number of variables including type and hazard of end use, the most effective distribution of preservative, a wide range of cross sectional dimensions, the possibility of seasoning by a ran...
J Rak, T S McKnight
Evaluation of rapid methods for detecting wood preservatives in waste wood
1994 - IRG/WP 94-50024
For the disposal of wood waste under ecological sound conditions information about its hazardous potential is required. Several analytical methods are available for the detection of most elements in wood preservatives. Industrial process conditions, however, demand methods with very short turn around times. In this research several methods of analysis were judged on their speed and accuracy. A num...
W J Homan, H Militz
Social and economocal impact of an extension of service life resulting of an adequate preventive treatment. Application to wooden components used in urban areas with a high density of population
1993 - IRG/WP 93-50001-15
Le document évalue les problèmes rencontrés en zone urbaine pour le sauvetage des constructions: coordination de la lutte, délimination des chantieres et des périmètres d'investigation, nuisances causées par les interventions, risques pour la santé, risques pour l'environnement. Coûts. Comparaison socio-économique du traitement préventif et des interventions à posteri...
A T De Lelis, G A C Lopez
Manual for inspection of waterborne preservative treated timber products
2006 - IRG/WP 06-20322
This paper deals with inspection procedures of waterborne preservative treated timber products. A research study supported by past experience, knowledge and training on relevant issues and consultation of relevant bulletins and standards revealed a concise widespread guideline for the inspection of waterborne preservative treated timber products. Through this paper different types of templates on ...
A K Lahiry
Termite Response to Oil-Heat-Treated Norway spruce, Scots Pine and Eucalyptus Wood
2006 - IRG/WP 06-20325
The work here presented focused on the behaviour of subterranean termites (Reticulitermes grassei Clément) towards Oil-Heat-Treated (OHT) Norway spruce (Picea abies L.), Scots pine (Pinus sylvestris L.) and eucalyptus (Eucalyptus globulus Labill) wood, with a particular interest in the development of simple methods adequate to study the resistence of these materials to termite attack. Small test ...
L Nunes, T Nobre, C Welzbacher, A O Rapp
Re-sealing cut ends of envelope-treated softwood framing timber to protect against damage by the Australian subterranean termite Coptotermes acinaciformis: A revisitation
2006 - IRG/WP 06-20335
The claim that Australian Coptotermes acinaciformis (Froggatt) do not appear to initiate damage on timber from the end grain, thereby negating the need for treating exposed cut ends of softwood framing material (35 ? 90 mm) which has a repellent Tanalith? T envelope, was further investigated. Specimens of commercial Pinus radiata D.Don framing timber (untreated) and Pinus elliottii Englem. (untrea...
B C Peters, M Lenz, J W Creffield
Laboratory methods for assessing the resistance of wood plastic composites to fungal attack.
2006 - IRG/WP 06-20340
Wood plastic composites (WPC’s) have many attractive material features including dimensional stability and resistance to moisture, but the wood in these materials remains susceptible to fungal attack. Assessing WPC decay resistance in laboratory trials has proven difficult because the slow moisture sorption characteristics of this material do not allow for sufficient fungal attack over the trad...
J J Morrell
Testing durability of treated wood according to EN 252. Interpretation of data from Nordic test fields
2006 - IRG/WP 06-20341
To evaluate the effectiveness of new wood preservatives intended for treated wood in ground use there is a European standard, EN 252. The test shall run for five years before any formal interpretation of the results can be made.
Due to environmental concerns, the use of wood preservatives based on copper, chromium and arsenic (CCA) has been restricted in recent years. As a consequence of restrict...
M L Edlund, F G Evans, K Henriksen, T Nilsson
Standard Test Methods for Wood Preservatives by Laboratory Agar-Block Test
2006 - IRG/WP 06-20350
Wood is one of the most valuable and versatile resources for all sorts of constructional purposes. But timber in its various forms is subjected to several types of deterioration. This standard lays down the method for the laboratory determination of threshold value of wood preservatives against fungi. Most chemicals are initially tested for their ability to control decay fungi in agar-block tests....
P K Sarker, M A Rahman, M R Bulbul, T Das, G N M Ilias
Copper borate for the protection of engineered wood products
2006 - IRG/WP 06-40334
Copper borate was evaluated for use in protecting oriented strand board (OSB) from mould, decay, and termites. Aspen OSB bonded with either phenolic or isocyanate resin was treated with several formulations of copper borate at various loadings from 0.26 to 4 percent by weight. These panels were then tested to determine the impact of the preservative on mechanical properties as well as resistance ...
R Smart, W Wall
The commercialisation of ThermoWood® products
2006 - IRG/WP 06-40339
The concept of thermally modifying timber is well established, which has achieved a limited market breakthrough to date. Commercial application has mainly occurred within Finland, though recent years has seen market gain in several other European countries. This paper reviews the known properties of ThermoWood® timber, based on the combined work of the Finnish ThermoWood® Association, alongside ...
D Jones, E Suttie, J Ala-Viikari, N Bergstrom, D Mayes
Further discussion of biological durability assessments of acetylated wood from several European institutes
2006 - IRG/WP 06-40340
In the last decade, interest in the development of wood modification systems has increased in Europe. Alongside several industrial initiatives for heat treatments, there have also been scaling up and pilot plant projects for chemical wood modification. Between 2000-03, the European Commission funded the "Thematic Network on Wood Modification". This paper features a re-evaluation of work undertaken...
D Jones, W Homan, F Bongers
Effect of fire retardants (monoammonium phosphate and diammonium phosphate, mixture of monoammonium phosphate and borax and ammonium sulphate) on beech wood with dipping and Lowry methods
2006 - IRG/WP 06-40350
In this study, the possibilities of using four kinds of chemicals as fire retardants with 12% concentration for beechwood (Fagus orientalis Lipsky) was surveyed. Providing testing samples that are related to the measurement of fire resistance properties according to JIS A-1321-1975 standard were evaluated. Wood samples were impregnated with Lowry and dipping methods. In this study, samples impregn...
M Akhtari, D Parsapajouh, M Arefkhani
Beetle-Fungus Associations in Woody Substrates in the Context of International Trade
2007 - IRG/WP 07-10610
Interest in the role of insects in transmitting various fungi and in the potential for outbreaks of insects vectoring plant disease organisms has resulted in a large volume of literature on insect-fungi relationships. Mites are mentioned as an important third partner in these associations. This paper summarizes information and provides an update on major aspects of these intricate associations in ...
A Uzunovic
Effect of fire retardants (monoammonium phosphate and diammonium phosphate, mixture of monoammonium phosphate and borax and ammonium sulphate) on beech wood with dipping and Lowry methods
2006 - IRG/WP 06-40350
In this study, the possibilities of using four kinds of chemicals as fire retardants with 12% concentration for beechwood (Fagus orientalis Lipsky) was surveyed. Providing testing samples that are related to the measurement of fire resistance properties according to JIS A-1321-1975 standard were evaluated. Wood samples were impregnated with Lowry and dipping methods. In this study, samples impregn...
M Akhtari, D Parsapajouh, M Arefkhani
Current state of world standardization in the toxicometric methods for testing of wood preservatives
2007 - IRG/WP 07-20354
The paper presents an outline of the history of forming standardized toxicometric methods for testing of wood preservatives in the world during last 100 years. Numerous studies resulted in three main methods which are currently used for official and basis assessment of biocides:
- agar-block method in Europe (EN 113);
- soil-block method in the USA and Pacific countries (ASTM D 1413);
- modifi...
J Wazny
A roadmap for performance-based specification of wooden components based on service life prediction
2007 - IRG/WP 07-20351
The need for an unified and harmonised system for performance classification and specification of wood and wood-based products in Europe emanates from requirements of users and the European Construction Products Directive, CPD. A road to a feasible specification system is outlined. Exposure-related performance prediction was worked out as a key task on the way to product specification. Therefore s...
C Brischke, A O Rapp