Your search resulted in 3410 documents. Displaying 25 entries per page.
A laboratory evaluation of tributyltin ethanesulphonate as an aqueous fungicide in wood preservation
1983 - IRG/WP 3229
Toxic limit data, using both leached and unleached wood test blocks, are reported for aqueous solutions of tributyltin ethanesulphonate against four Basidiomycete fungi, Poria placenta, Gloeophyllum trabeum, Coriolus versicolor and Coniophora puteana. An in situ study of the tributyltin compound in Scots pine and ponderosa pine sapwood has been carried out, using the technique of 119mSn Mössbauer...
R Hill, P J Smith, J N R Ruddick, K W Sweatman
Remediation of wood treatment sites in Finland
1999 - IRG/WP 99-50139
Finnish legislation in connection with soil contamination are firstly waste management legislation and secondly public health legislation and water legislation. There is no separate legislation concerning soil protection or remediation. The Ministry of the Environment has published a proposal for official contaminant guideline values to be used both as criteria for contamination and clean-up targe...
S Salonen
Assessment of the effects of rentex remedial treatment on some wood pole inhabitant micro-organisms
1994 - IRG/WP 94-30053
The effects of a remedial ground-line treatment using Rentex, a stabilised paste containing a mixture of fluoride and dichromate salts, on the micro-organisms inhabiting a sample of some 160 creosoted, on-line, electricity distribution poles, have been investigated as part of an appraisal of the efficacy of this remedial treatment. Half of the poles were treated and the other half used as controls...
D C R Sinclair, G M Smith, A Bruce, H J Staines
Wood preservation in Brazil
1978 - IRG/WP 3126
Wood preservation was stablished in Brazil by 1902 in order to provide treated sleepers for railways, since there was a shortage of durable hardwoods in area served by railways. The growing need of sleepers and poles together with the availability of Eucalyptus spp. contributed for the development of wood preservation. Many wood preservation plants started to be stablished in 1957, and in 1977 the...
M S Cavalcante
EPR observation of Mn(II) in decayed wood
2002 - IRG/WP 02-10443
Preliminary Electron Paramagnetic Resonance (EPR) studies of copper/chromium (CC) treated spruce wood, subjected to laboratory soil decay test showed increased intensities of Mn(II) EPR signal in partially decayed specimens. Several reasons might be responsible for this phenomenon: Mn(II) could originate from the wood after being released from the typical ligand binding, from reduction of other Mn...
M Petric, M Humar, P Kalan, F Pohleven, U Schoknecht, M Šentjurc
Preservative treatment of green timber by soaking in ammoniacal copper borate
1984 - IRG/WP 3292
Freshly sawn boards of radiata pine sapwood were preservative treated by soaking in ammoniacal copper borate. Optimum schedules were obtained by partially seasoning the boards for one week prior to treatment. This aided the absorption of preservative and reduced the required soaking time to approximately 2 hours. Complete boron penetration was obtained after one week of block storage under cover a...
P Vinden, A J McQuire
Environmental aspects of wood preservation
1987 - IRG/WP 3406
The preservation industry employs a wide range of chemicals and processes to provide timber commodities capable of resisting biodeterioration and degradation. The public often perceives the chemicals as health hazards and treatment plants as potential threats to the environment. This paper attempts to place in proper perspective the value of wood preservation. It discusses aspects of health and sa...
H Greaves
An overview of the economic importance and control of termites in plantation forestry and wood preservation in Peninsular Malaysia
2000 - IRG/WP 00-10382
Both the plantation forestry and wood preservation industries in the tropical and sub-tropical belts of the world, exemplified by the humid equatorial Peninsular Malaysia, regard termites as major destructive pests of standing trees, various timber products and building timber structures. This paper is a compilation of information on these economically important structural pests encountered in bot...
L G Kirton, A H H Wong, Kee Suan Cheok
Environmental situations on wood preservation industries in Japan
1995 - IRG/WP 95-50040-21
Because of environmental civil oppinions, Ministry of Agriculture, Forestry and Fisheries in Japan, reviesed "the standards for sawn lumber" in 1994. For the possibilities of the use of preservatives out of CCA, by the using of the hazard levels, new products like ACQ, DDAC and emulsified zinc-naphthenate can be used in the standards. Since 1994, the permitable limit of the arsenic in the waste wa...
K Suzuki
Wood preservation in Iran
1984 - IRG/WP 3270
The report sketches the history of the use of wood in Iran to the establishment of the country's national forest service and gives some figures for Iran's timber needs by the year 2000. Progress in wood preservation has been slow, although items such as railway sleepers and poles have been pressure treated since the first pressure impregnation plant was erected in 1932. Today the...
P Niloufari, R Cockcroft
Comparison of thermally modified wood originating from four industrial scale processes – durability
2002 - IRG/WP 02-40229
This study examined the differences in biological wood properties of heat treated wood originating from four different European industrial heat treatment plants. The manufacturers of heat treated material were: PLATO Hout B.V./Netherlands, Thermo Wood/Finland, New Option Wood/France and Menz Holz/Germany where Oil-Heat treated Wood (OHT) is produced.
The results of miniblock tests with basidiomyc...
C R Welzbacher, A O Rapp
The use of light organic solvents in industrial wood preservation - an environmental perspective
1995 - IRG/WP 95-50040-22
The paper examines the evolving regulatory environment concerning the use of hydrocarbon solvents in industry and, in particular, the European wood preserving sector. The implications of the proposed EU Directive on industrial solvent use are explained and possible responses to such regulation examined, including process modification, product changes and emission abatement, where necessary. The de...
G A Ewbank
FLUROX, a new breakthrough in insect control for wood preservation
1995 - IRG/WP 95-30079
FLUROX (flufenoxuron) is an acylurea insecticide which acts as a growth regulator in insects. FLUROX inhibits the production of chitin - the exoskeleton or 'skin' of the insect. When the exposed larva attempt to moult to its next stage of development, it is unable to produce a new skin and dies. FLUROX has been found to be extremely active against wood borers, when applied in a p...
A R Valcke, M Pallaske
Wood preservation requirements in Queensland, Australia
1983 - IRG/WP 3227
In Queensland the preservative treatment and utilization of timber must comply with the Timber Users' Protection Act. Preservative retention levels and penetration patterns must be complied with. Analytical zones are specified for removing samples for chemical analysis of preservative retention. The required retention levels have been expressed as percent weight of oven dry wood weight. T...
L E Leightley, M J Kennedy
Proceedings of the 3rd international wood preservation symposium "The Challenge - Safety and Environment" 6-7 February 1995, Cannes-Mandelieu, France
1995 - IRG/WP 95-50040
Contains the following 35 Documents (IRG/WP 95-50040/1 - IRG/WP 93-50040/35), conclusions (summaries of the sessions chairmen) and some poster abstracts:
Le pin: Matériau à contact alimentaire [Pine wood as a material for food contact] (IRG/WP 95-50040/1); The use of a physical field model to study the effects of remedially treated timber on the growth of perennial ryegrass (Lolium perenne) and...
Anonymous
Wood preservation in Brazil
1984 - IRG/WP 3321
The report gives statistics on the wood products industries, the forest products exported, the production of treated sleepers, poles, crossarms, fence posts and other wood products in Brazil for the years 1977 to 1981. The total numbers of vacuum/pressure plants, through the years 1902 to 1984, indicate that from 1960 there has been a steady increase in treatment requirements. Most of the plants a...
M S Cavalcante, R Cockcroft
Wood preservation in Southern Africa
1984 - IRG/WP 3320
This report deals with the status of wood preservation in the countries of Southern Africa, namely Botswana, Lesotho, Mozambique, Namibia, South Africa, Swaziland and Zimbabwe. It includes some data on the timber production from the forests of these countries, as well as detailing the state of the timber products industries in South Africa which is the dominant country in the field in the sub-cont...
A Pizzi, W E Conradie, R Cockcroft
European standardization for wood preservation. Progress report 91-92
1992 - IRG/WP 92-2398
Since the IRG 22 conference in Kyoto, CEN/TC 38 Plenary met twice in relation with several working group meetings. 5 upon 6 of the interpretative documents have been prepared by adhoc groups of the Standing Committee for Construction within the scope of the 89/106/EEC directive on Construction Products. The expected requirements attached to wood preservation are both requirements 1) and 3): 1) mec...
R Hüe
Animal blood protein as a component of new, non-toxic wood preservatives fixing organic active compounds in wood
2003 - IRG/WP 03-30312
Application of natural organic compounds and simple physico-chemical treatments in wood conservation has, as its objective, not only its protection against biological agents but, equally importantly, protection of natural environment by gradual abandonment of toxic constituents still applied commonly on a wide scale. The introduction into wood of new, non-toxic impregnation agents manufactured on ...
B Mazela, I Polus
Computerised data acquisition and barcode technology - Examples of its application and use in wood preservation research
1992 - IRG/WP 92-2404
Experimental samples in wood preservation research are usually individually labelled with either some form of durable marking pen or more commonly with a stamped metal or plastic tag. The label must remain intact and legible for the duration of the experiment which, in the case of a field trial, can be many years. Preservative performance data have traditionally been recorded manually on a data sh...
K J Archer
Statement on laws relating to wood preservation in Brazil
1977 - IRG/WP 399
A set of copies of the laws relating to wood preservation in Brazil (in Portuguese) have been deposited with the IRG Secretariat. Generally speaking, it can be said that all public constructions have to comply with the laws that have been laid down. All organisations (governmental and private) which produce or apply wood preservatives are registered. The private sector is not obliged to abide by t...
P Karstedt
Increased biological durability differs for traditional wood preservation and new non-biocidal systems (NBS)
2000 - IRG/WP 00-20212
Wood preservation is a way to increase the biological durability of wood by the addition of chemical components with a biocidal effect. The effect of such treatment is clearly concentration dependent. At distinct levels of fungicide concentration fungi are killed or inhibited in their enzymatic functioning to provide nutrients. The toxic limits allow decision-makers to provide treating prescriptio...
J Van Acker, M Stevens
The wood preservation industry in Kenya
1997 - IRG/WP 97-30157
Like in many other tropical and sub-tropical countries, the necessity to protect wood using wood preserving chemicals was not found necessary in Kenya because of abundant supplies of naturally durable hardwoods. That situation changed as a result of depletion of natural hardwood forests and replacement by fast growing non-durable exotic species and the appearance of new, more lucrative markets for...
R Venkatasamy
Biological test, AAS and EPR study of copper monoethanolamine complex with quaternary ammonium compounds as a wood preservative
2003 - IRG/WP 03-30321
Experiments were carried out on the wood preservative with a strong fungicidal activity based on Cu(II) carbonate, 2-aminoethanol (monoethanolamine) and quaternary ammonium compound (QAC). The object of the performed investigations was sapwood of Scots pine (Pinus sylvestris L.) treated with Cu-EA-QAC formulation. Mycological investigations were carried out according to EN 113 and EN 84 standards....
B Mazela, I Polus, S K Hoffmann, J Goslar
A review of the efficacy and uses of deltamethrin for wood preservation
1996 - IRG/WP 96-30105
The synthetic pyrethroid deltamethrin, is one of the most active insecticides available for protecting and curing wood from attack by beetles and termites. Freshly felled trees can be protected against bark beetles by spraying to run off with a 0.025% Al solution (K-Otek EC25) with negligible leaching. Alternatively, sawn timber may be dipped in a 0.0125% Al solution for short to medium term prote...
A J Adams, J L Lindars