Your search resulted in 713 documents. Displaying 25 entries per page.
Leaching of active components from preservative-treated timber. Stages 2 & 3: Laboratory testing and comparison with semi-field testing
2004 - IRG/WP 04-20303
This part of the project is focussed on leaching from preservative-treated wood obtained by the laboratory test method CEN/OECD draft guideline, February 2003 ”OECD guideline for the testing of chemicals proposal for new guideline XXX. Estimation of Emissions from Preservative-treated Wood to the Environment: Laboratory Method for wood held in the storage yard after treatment and for wooden comm...
N Morsing, B Lindegaard
Protection of buildings, other structures and materials in ground contact from attack by subterranean termites with a physical barrier - a fine mesh of high grade stainless stee
1993 - IRG/WP 93-10014
A new type of physical barrier for the prevention of attack by subterranean termites on buildings, other structures and materials in ground contact - a fine mesh of highalloy (originally 304, now 316) stainless steel - has recently been developed and patented worldwide by industry in Australia. The termite resistance of the material was assessed by CSIRO in laboratory and field trials. In the labo...
M Lenz, S Runko
IRG/COIPM INTERNATIONAL MARINE TEST - to determine the effect of timber substrate on the effectiveness of water-borne salt preservatives in sea-water. Progress Report 14: Report of sixth inspection (60 months) in Australia
1983 - IRG/WP 499
The IRG/COIPM International Marine Test was installed at Goat Island, Sydney Harbour, in December, 1977. The results of inspections made at 6, 12, 24, 36 and 48 months have previously been reported. This document records the data obtained on the 16.12.82, i.e. after 60 months exposure, at which time only 4 of the test frames remained in test. The surface water temperature at the time of inspection...
L J Cookson, J E Barnacle
Sawn timber of fir (Abies alba Mill.) - Treatability and usability for the Hazard Classes 3 and 4
1999 - IRG/WP 99-40147
Within a national research project, tests on the treatability on sawn timber of fir (Abies alba Mill.) in oscillation pressure, vacuum pressure and double-vacuum processes have been worked out with 95 trunks taken from 3 different altitude levels (up to a height of 590 metres, 600 to 990 metres and over 1000 metres) and from 4 different regions of Switzerland. As the treatability of round wood can...
E Graf, T Bör
A field test with anti-stain chemicals on sawn pine timber in Brazil
1989 - IRG/WP 3513
Field tests were carried out in São Paulo State - Brazil, to evaluate pre-treatment formulations of O-Phenyl-Phenol (OPP) based products. The Sodium Pentachlorophenate solution was used as a reference formulation. The treated test blocks were stacked in a covered shed, and in an uncovered place for air drying. The evaluation was done by measuring the percentage of stained surface on each test blo...
M B B Monteiro, S Brazolin
Biological control of wood decay
1992 - IRG/WP 92-1531
This paper provides a general discussion of the principles underlying the concept of using biological control agents for the protection of wooden materials from decay. The rationale for the current upsurge in interest in biological control is discussed and a critical appraisal of the technology compared with the use of chemical wood preservatives is included. The advantages and limitations associa...
A Bruce
Evaluation of the insecticidal efficacy of deltamethrin and the fungicidal efficacy of its association with TCMTB + MBT in the field of wood preservation
1986 - IRG/WP 1289 E
Deltamethrin possesses many advantages for the insecticidal protection of wood: relatively low toxicity, very reduced evaporation, very prolonged retention in the wood, very slight leaching after having penetrated the wood, and absence of odour. Its association with other active agents or solvents is being studied with regard to chemical compatibility. Compatibility studies have proved positive fo...
J S Duguet
Characteristics and quantity of impregnated wood waste in Germany
1995 - IRG/WP 95-50041
The disposal of wood waste in Germany is one of the main problems not only for the wood preservation industry but also for all concerned with wood waste. Data on characteristics and quantity of wood waste are still needed. Based on criterions given in a previous paper (IRG/WP 93-50006), several assortments have been characterized with regard to their hazardous potential and their logistical aspect...
A Voss, H Willeitner
Microemulsion formulations for wood protection chemicals
1993 - IRG/WP 93-30030
A microemulsion is a thermodynamically stable oil-water dispersion system. As a formulation it provides many unique features such as water compatibility for water-insoluble chemicals, formulation stability, good bioavailability and environmental acceptance. This paper discusses the major criteria for the formulations of water-insoluble wood biocides and the comparison in properties between convent...
Bing Yu, L E Leightley
Dutch national environmental policy strategy (NMP): Implications throughout the life cycle of treated timber and for the Dutch preservation industry
1993 - IRG/WP 93-50001-31
All overview of relevant environmental legislation and instruments for control is given for each stage of the life cycle of treated timber. Recent policy in the Netherlands has been focused around the "National Environmental Policy Strategy", in which a general policy with regard to reduction of pollution to the air, soil and water is described. The principle is one of an "Integrated Chain of Cont...
P Esser, D A Lewis, A J Pendlebury
Utilization of coconut timber from north Sulawesi, Indonesia. Part 2: Treatability
1994 - IRG/WP 94-40025
Under tropical conditions coconut wood is quickly degraded by mold and blue stain fungi. Low density wood in ground contact is commonly decomposed by wood destroying fungi within a period of only a few months, higher density wood from the outer stem regions within 24 to 30 months (MOSTEIRO, CASIN, SERIBAN 1976; McQUIRE 1975). Moreover, according to McQUIRE (1975) green wood of lower density is hig...
R-D Peek
IPBC - A new fungicide for wood protection
1984 - IRG/WP 3295
3-iodo-2-propynyl butyl carbamate (IPBC) is presented as a potential low toxic alternative to pentachlorophenol and the sodium chlorophenoxides. Data on its effect against basidiomycetes is shown. Tests according to both the European standard method, EN-113, and American, ASTM D-413, have shown its potential. The chemical gives protection against both the wood destroying fungi, blue stain, mould and algae. It is possible to have it formulated in both water-based and organic solvent-based products. Treatment of wood out of ground contact (vac-vac products, pretreatment products, primers, stains, etc.) and sapstain control are some of the most potential end use areas within wood protection. Besides wood protection, the IPBC is used as a fungicide in paint, adhesives, caulks and sealants, cement, leather, paper, cutting oil, ink and in different roofing materials.
J Hansen
Leaching of arsenic, copper and chrome from preservative-treated timber in playground equipment
1984 - IRG/WP 3149
Samples were taken from CCA-treated timber in sand play boxes and other play ground equipment. Sand was also sampled. Sand and wood samples were analysed for copper, chrome and arsenic by AAS. About 20-25% of the arsenic had leached from the timber after 2-4 year's exposure in the playgrounds. Very little of the copper and chrome had been leached. Sand collected in the close vicinity of t...
B Henningsson, B Carlsson
IRG/COIPM INTERNATIONAL MARINE TEST - to determine the effect of timber substrate on the effectiveness of water-borne salt preservatives in sea-water. Progress Report 5: Interim report
1980 - IRG/WP 454
Wood samples (15 x 2 x 2 cm³) were treated with one copper/chrome/arsenic (CCA) and one copper/chrome/boron (CCB) preservative using the following concentrations - O, 3, 6, 10%. Treated samples of three reference wood species - Alstonia scholaris, Fagus sylvatica, Pinus sylvestris were supplied to all participants. Additional local species were chosen by participants and included in the test at t...
R A Eaton
A report on the development of "Technical Recommendations Document for the Canadian wood preservation and protection facilities"
1987 - IRG/WP 3447
The wood preservation and wood protection industry uses chemicals which are similar. However, because the methods of applications of preservatives are different in wood preservation (pressure treatment) and wood protection (surface treatment) plants, their problems need to be resolved separately. As a part of a federal strategy to protect the environment and human health from potentially toxic com...
G Das, V N P Mathur
Screening of modified linseed oils on their applicability in wood protection
2004 - IRG/WP 04-30346
In this study modified linseed oils, rape oil and three waxes were screened on their efficacy as wood protecting agents. By testing all products when impregnated with high retentions in Scots Pine sapwood on water repellence qualities, additionally an accelerated weathering test, drying quality, accelerated brown rot and blue stain test, an indication is formed of the capability of these products ...
A Treu, J Lückers, H Militz
Sentry®), a new antisapstain formulation for protecting logs and lumber. - Part 1: advances in protection of New Zealand radiata pine logs
1999 - IRG/WP 99-30188
Until recently antisapstain formulations gave approximately 10 weeks protection to radiata pine logs and even within this time frame protection was often not consistent. Industry requires 20 weeks protection. The degree of protection sought by industry is in the order of 90-95%. For example, this equates to a maximum of 5 - 10% surface cover of sapstain in the first whole veneer produced from a pe...
R N Wakeling, D R Eden, C M Chittenden, J G Van der Waals, B Carpenter, I Dorset, R Kuluz, J Wakeman, T Price, B Nairn
New principles for the protection of wood: Impregnation with waterborne resins
1995 - IRG/WP 95-40047
The environmental impact of classical wood preservatives as well as the use of tropical wood species with high natural durability is regarded increasingly critically in the public. Therefore other partially new principles for the protection of wood, like chemical modification, or treatment with resins were examined especially in USA, Japan and in Europe with promising results predominantly in the ...
A O Rapp, R-D Peek
Natural durability of larch heartwood against decay
1997 - IRG/WP 97-10201
Larch heartwood has been promoted in Sweden and in other European countries as an alternative to preservative treated timber. It has even beeen stated that larch heartwood is more durable than preservative treated timber. This paper presents a compilation of facts from scientific reports on the durability of larch heartwood. Some recent data from this department are also reported. All data suggest...
T Nilsson
Evaluation of the effectiveness of defence anti-stain in the control of sapstain in laboratory and field tests
1990 - IRG/WP 3593
The anti-sapstain product Defence Anti-stain (DAS) has been evaluated internationally in laboratory and field tests during the years 1988 and 1989. Results of tests carried out by institutes and by own companies in countries like Indonesia, Ivory Coast, Japan, Portugal, Belgium, The Netherlands and Spain will be presented. In the several tests Defence Anti-stain showed a high fungicidal activity t...
G Rustenburg, C J Klaver
IRG/COIPM INTERNATIONAL MARINE TEST - to determine the effect of timber substrate on the effectiveness of water-borne salt preservatives in sea-water. Progress Report 19: Report on the condition of specimens at Sekondi, Ghana after 42 months
1984 - IRG/WP 4109
The results of the first formal inspeation of CCA- and CCB- treated test panels exposed at Sekondi, Ghana, in June 1980, are presented. All untreated control panels of both reference and local species have been destroyed. Of the% CCA- treated specimens, only those of Pinus sylvestris (reference species) and Mitragyna stipulosa (local species) have not been attacked. 3% CCB-treated local species ha...
F F K Ampong
A novel chemical barrier system, KORDON® TMB, for the protection of buildings against subterranean termites using a synthetic matrix as carrier for the chemical
1998 - IRG/WP 98-10264
Kordon TMB is a new chemical barrier system for installation beneath concrete slab-on-ground constructions using a matrix other than soil as carrier for the termiticide. The product consists of a synthetic foraminous web (blanket) carrying the synthetic pyrethroid deltamethrin. The blanket is laminated on the upper side to a standard 0.2mm thick moisture vapour membrane of low density polyethylene...
M Lenz, P Morrow, S Runko
Natural resistance of twenty-five timber species to marine borer attack in Goa waters (India)
1992 - IRG/WP 92-4178
Natural durability of 25 species of Indian timbers has been discussed, based on data collected from test panels exposed in Goa waters (west coast of India. for a period of 7 months. All the timber species, except Cleistanthus collinus, were heavily destroyed within 7 months on account of the combined attack by Martesia striata (Linnaeus) and Lyrodus pedicellatus (Quatrefages). Cleistanthus collinu...
L N Santhakumaran, G Srimannarayana, K Nagaiah
Step-wise pressure process for reducing surface roughness in Japanese cedar timber
2003 - IRG/WP 03-40256
Sixteen dried sawn-timber (10.5 x 10.5 x 360 cm) were cut into half. The half of them was treated by step-wise pressure process with 2.5 MPa maximum, and the other half was treated by conventional pressure process with 2.5 MPa maximum. Average DDAC preservative absorption was 461 kg/m3 in the former and 525 kg/m3 in the later. Surface roughness was expressed as the profile element height of collap...
K Yamamoto, M Nozoki
Suitability of propiconazole (R 49362) as a new-generation fungicide
1989 - IRG/WP 3529
Propiconazole (R 49362), an anti-fungal triazole-compound of Janssen Pharmaceutica, has been extensively tested to determine its potential use as a wood preserving fungicide. Various tests in both private laboratories and official institutes indicate a good activity against Basidiomycetes (brown and white rot) and Ascomycetes (blue stain-in-service). The active ingredient seems very resistant to w...
A R Valcke