Your search resulted in 3435 documents. Displaying 25 entries per page.
A new ground-contact wide-spectrum organic wood preservative: DNBP
1986 - IRG/WP 3358
A new organic wood preservative, which 25 years field tests have proved to be of efficiency and effectiveness comparable to CCA wood preservatives for ground-contact applications, is presented. Physical and chemical tests, supporting the long term field test results as well as indicating the characteristics of this preservative, are also presented....
W E Conradie, A Pizzi
Soft rot and bacterial decay in preservative treated eucalypt power transmission poles
1982 - IRG/WP 1155
Bacterial type decay was observed in CCA and PCP treated eucalypt power transmission poles. Detailed observations made with the SEM revealed bacterial colonisation and decay, especially in fibres. Plug samples taken from poles throughout Queensland were examined for preservative retention and presence of soft-rot decay. The severity of decay was different according to location, retention and speci...
L E Leightley
The Thirteenth Report of the International Research Group on Wood Preservation 1983
1984 - IRG/WP 5194
R Cockcroft
A combination of chlorothalonil and chlorpyrifos for more effective wood preservation
1995 - IRG/WP 95-30067
Chlorothalonil (tetrachloroisophthalonitrile) is a highly effective fungicide and wood preservative. Chlorpyrifos (O,O-diethyl O-(3,5,6-trichloro-2-pyridinyl)phosphorothioate) is an insecticide and is not generally considered to possess significant antifungal activity. However, a review of the literature revealed that chlorpyrifos effects in various ways the activity of microorganisms and is even ...
T L Woods, P E Laks, T C Blewett, R D Fears
Targeting fungal proteinases to prevent sapstain on wood
1995 - IRG/WP 95-10097
Discoloration of wood, caused by a variety of sapstaining fungi, leads to periodic losses in the Canadian lumber export industry. Proteolytic enzymes are thought to be necessary for retrieval of nitrogen during fungal growth on wood. The major extracellular proteinase of Ophiostoma piceae, a representative sapstaining fungus, was purified to homogeneity and its inhibition pattern characterised. Cl...
L D Abraham, D E Bradshaw, A Byrne, P I Morris, C Breuil
Developments in wood preservation
1977 - IRG/WP 393
The purpose of this paper is to comment very briefly upon recent developments and trends in wood preservation so that members of this Working Group have a basic knowledge of activities in other countries. The last paper was prepared in April 1976 and the present paper refers to developments, since that time....
B A Richardson
Response of laboratory groups of Reticulitermes speratus (Kolbe) to different quantities of food
2003 - IRG/WP 03-10489
As part of a project aimed at improving understanding of the foraging biology of Japan’s most widespread wood-destroying termite, different sized groups of Reticulitermes speratus (0.5; 1 and 2 g) from two colonies were kept on 16 or 64 cm3 of sapwood of Cryptomeria japonica for 12 weeks in the laboratory. Patterns of wood consumption, wood consumption rates and survival are discussed....
M Lenz, T Yoshimura, K Tsunoda
Performance results of wood treated with CCA-PEG
1986 - IRG/WP 3363
The addition of polyethylene glycol (PEG) to the CCA system has been shown to reduce the surface hardness of poles and ease spur penetration during climbing. This paper addresses the results of tests dealing with preservative retention and penetration, permanence of CCA and PEG, strength, drying rate, and checking characteristics....
W P Trumble, E E Messina
Information from the COIPM Wood Group. Summary received via Mme Dr Anna Gambetta (Italy)
1987 - IRG/WP 4139
Two co-operative programmes were discussed: 1) The IRG/COIPM co-operative programme on the CCA/CCB wood treatments and 2) The IRG/COIPM co-operative programme for testing the resistance of plastic wrapping for wooden pilings. The following was reported: In the wood treatment programme, beech, pine and alstonia wood samples have been pressure treated with 3 retentions (3%, 6% and 10%) of CCA and CC...
J R DePalma
The Twelwth Report of the International Research Group on Wood Preservation 1982-1983
1983 - IRG/WP 5177
IRG Secretariat
The Phase Out of CCA in the United States
2002 - IRG/WP 02-50194
In mid-February, 2002 the Administrator of the United States Environmental Protection Agency, Christine Todd Whitman, announced that the US treated wood industry will have until the end of December 2003 to end residential uses for Chromated Copper Arsenate (CCA). Industrial uses of CCA will still be allowed after the December 2003 date. This paper explores the events that led up to the announcem...
J D Schert
Wood-attacking organisms in Brazil
1982 - IRG/WP 1168
Lists of the main wood-attacking beetles, termites, fungi and marine borers in Brazil are presented with the respective wood species from which they were collected....
M S Cavalcante
A technique for the quantitative isolation of Actinomycetes from decayed wood
1980 - IRG/WP 1116
A technique combining comminution and high-speed homogenisation has been developed for the preparation of suspensions of micro-organisms in colonised wood. When standard inocula of Streptomyces spores were applied to wood, constant proportions of the inocula were recovered. This method was used in conjunction with selective culture media to isolate actinomycetes from wood which had been buried in ...
A A W Baecker, B King
Draft Business Plan of CEN/TC 38 - Durability of wood and wood-based products - Introduction
2000 - IRG/WP 00-20207
CEN Technical Committees and Business Planning. The extension of formal business planning to CEN Technical Committees (CEN/TCs) is an important measure which forms part of a major review of business processes (known as 'Optimization'). The aim is to align the CEN work programme with expressed market needs and to ensure the adequate resourcing of projects through their development...
R Hüe
Fire resistance of Alder wood treated with some chemicals.
Part II. Effect of Other Chemicals on the Combustion Properties
2002 - IRG/WP 02-40235
Samples from alder wood (Alnus glutinosa (L.) Gaertn. subsp. barbata (C.A.Mey) Yalt.) were impregnated according to ASTM D 1413-88 with boron compounds (boric acid, borax,
sodium perborate), vinyl monomers (styrene, methyl methacrylate), Tanalith-CBC, Phosphoric acid, Vacsol, Immersol, Polyethylene glycole (PEG-400) and their mixed solutions of chemicals in order to determine their combustion pro...
A Temiz, Ü C Yildiz
Fiji wood preservation regulations
1980 - IRG/WP 3138
A S Alston
The Fourth Annual Report of the International Research Group on Wood Preservation 1972-1973
1973 - IRG/WP 522
IRG Secretariat
Environmental issues: Messages for the wood preservation industry
1985 - IRG/WP 3353
A review of the origins and structure of environmental legislation throughout those territories of the world where wood preservation is a major industry is given. The implications of media, industry and legislation interaction is discussed and suggestions made as to the key issues the wood preservation industry should concentrate its attentions on in the immediate future....
D G Anderson, P Waldie
The Eleventh Report of the International Research Group on Wood Preservation 1980-82
1982 - IRG/WP 5154
IRG Secretariat
Leaching of Active Components from Preservative Treated Timber. Stage 1: Semi-Field Testing
2004 - IRG/WP 04-20302
The project is aiming at finding realistic leaching rates from preservative-treated wood in use class 3 (above ground). The project focuses on developing a field trial method for investigating leaching.
Panels are subjected to outdoor exposure under natural weather conditions at a test field at the Danish Technological Institute. The leachate is collected and monitored by chemical analysis of the...
N Morsing, B Lindegaard
Exterior weathering trials on radiata pine roofing shingles
1985 - IRG/WP 3240
A series of test roofs clad with radiata pine (Pinus radiata D. Don) shingles that had been pressure-treated with various water-borne preservative formulations were installed at a Forest Research Institute test site in Rotorua in 1977. A further series of test roofs installed in 1978 included radiata pine shingles pressure-treated with a commercial light organic solvent preservative (LOSP). Evalua...
D V Plackett, C M Chittenden, A F Preston
Relationship between stacking, location and antisapstain preservatives on visible degrade of Eucalyptus regnans and Pinus radiata boards
1999 - IRG/WP 99-20162
An antisapstain trial was established at a Eucalyptus hardwood sawmill in Victoria, Australia. The trial incorporated two commercial formulations of antisapstain preservatives, used at four different concentrations on both hardwood (Eucalyptus regnans F. Muell) and softwood (Pinus radiata D. Don) boards. The trial also utilised different stacking methods (block-stacked, sticker-stacked, and block-...
J Snow, P Vinden, S M Read
Collaborative field experiment: Analysis of copper and chromium in stakes of the four reference timbers
1982 - IRG/WP 3213
The stakes analysed belong to the Swedish set of the four reference timbers of the collaborative field experiment (Document No: IRG/WP/367). Before the field exposure 60 mm were cut off the end of each stake. This was done in order to be able to carry out chemical analyses as well as different types of testing. Some of the material has been used in softrot tests (Document No: IRG/WP/1151)....
T Nilsson
Preservative-treated wood as a component in the recovered wood stream in Europe – A quantitative and qualitative review
2004 - IRG/WP 04-50218
Wood preservatives have been used for the protection of timber products in the European market in appreciable quantities for about 100 years. Between the 1960s up to the present day this usage has been particularly noticeable. The aim of this paper is to present quantitative and qualitative data on the volumes of preservative treated wood placed on the market in the UK and Sweden and to evaluate t...
R J Murphy, P Mc Quillan, J Jermer, R-D Peek
Comparative performance of pentachlorophenol and copper naphthenate in a long term field stake test
2000 - IRG/WP 00-30243
In this study the performance of copper naphthenate (Cu-Nap) and pentachlorophenol (Penta) treated pine stakes against decay and termite attack were compared at two test sites in Mississippi. Four different petroleum oils meeting AWPA Standard P9-A were used as carriers for these wood preservatives. After ten years exposure, the efficacy of Cu-Nap at a retention level of 0.05 pcf Cu was equivalent...
D D Nicholas, M H Freeman