Your search resulted in 68 documents. Displaying 25 entries per page.
Resistance of painted wood to mould fungi. Part 3. The effect of weathering, wood substrate and fungicides on mould growth
1998 - IRG/WP 98-10284
The effect of 6 month outdoor weathering on the resistance of acrylate paint systems on different types of pine and spruce sapwood to mould fungi was studied. Dipping into the preservative prior to painting, a primer with and without a fungicide (propiconazole + IPBC 0.50 + 0.2%) and a topcoat with and without a fungicide (propiconazole + IPBC 0.25 + 0.12%) were combinations of the treatments stud...
H Viitanen, P Ahola
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 21: Report of eighth inspection (7 years) in Australia
1985 - IRG/WP 4119
This report tabulates the seven year (86 month) inspection results, obtained on 28 Fabruary l985, of the IRG/COIPM International Marine Test at Goat Island, Australia. This test was installed in December 1977. The results are given in Tables 1-6. Table 7 lists the number of marine borers identified from blocks (2 cm and 6 cm long respectively) cut from the ends of specimens removed at the previous...
L J Cookson, J E Barnacle
Soft-rot control in hardwoods treated with chromated copper arsenate preservatives. Part 3: Influence of wood substrate and copper loadings
1977 - IRG/WP 2100
The hypothesis is proposed that hardwoods need more chromated copper arsenate (CCA) than softwoods to protect them from soft-rot attack mainly because hardwoods are more readily consumed by soft-rot fungi. Simple model systems, using copper-supplemented agar or groundwood pulp treated with CCA showed that fungi tolerated more toxicant (copper) as more available substrate (malt) was provided. Soft-...
M A Hulme, J A Butcher
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 6: Report of third inspection (24 months) in Australia
1980 - IRG/WP 456
This report presents the results of the third inspection of the IRG/COIPM International Marine Test specimens installed at the Goat Island Marine Biological Station of the Maritime Services Board of New South Wales, in Sydney Harbour. The inspection was completed on 5th December, 1979, after 24 months exposure. As on previous occasions, this inspection was carried out in conformity with the provis...
J Beesley
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 fifth inspection (48 months) in Australia
1982 - IRG/WP 484
This report presents the results of the fifth inspection of the IRG/ COIPM Internatlonal Marine Test specimens installed in Sydney Harbour in December, 1977. This inspection took place on 9th December, 1981, just 48 months after the specimens were installed. Earlier reports have contained full details of the treatment and installation of the specimens as well as results of all previous inspections...
J Beesley
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 18. Report of seventh inspection (72 months) in Australia
1984 - IRG/WP 4108
This report includes the results for the 72 month inspection of the IRG/COIPM International Marine Test installed in Sydney Harbour. Although, overall, attack by teredinid and limnorid borers have been most commonly encountered in test specimens at this site, slight attack, mainly by sphaeromatids, has recently been initiated on some hitherto unattacked treated Alstonia scholaris and Pinus sylvest...
L J Cookson, J E Barnacle
The use of preservative containing waste wood as substrate for growing greenhouse crops
1993 - IRG/WP 93-50011
In the Netherlands a large amount of waste wood and wood waste is produced every year. An important part of this amount comes from the pallet and packaging industries. One of the possibilities to re-use this relatively clean material is to convert it into substrates for growing crops in glass houses instead of the commonly used materials such as rock wool and glass wool. In this research, the infl...
W J Homan,H Militz
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 3: Report of first inspection of samples at Lae, Papua New Guinea
1978 - IRG/WP 446
Samples for the international marine test were placed on frames numbered I to VII. Frames numbered VII of both CCA and CCB trials are being stored dry in the laboratory at F.P.R. & D.C. Frames I to VI of both trials were suspended in the sea at Lae Harbour (Morobe Province, Papua New Guinea) on 6th December 1977. The first inspection of the CCA trial was carried out on 8th June 1978, at which ...
S M Cragg, C R Levy
An attempt to grow dry rot fungus Serpula lacrymans on mortar substrate in non-sterile conditions
1989 - IRG/WP 1385
According to many experts, Serpula lacrymans is probably the most dangerous wood destroying fungus in houses. Investigations of KOCH, A.P. (2) showed that incidence of this fungus in percent was around 20% when the frequency of some other standard fungi was far below (Coriolus versicolor: 0.2% for example). The work presented here is a part of a program carried out at CTFT for assessing the resist...
L N Trong
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
Breakdown of cellulose derivatives by cellulolytic enzymes. I. Action of fungal ß-glucosidases toward substituted PNP ß-D-glucopyranosides
1998 - IRG/WP 98-10281
The action of fungal ß-glucosidases on the methyl derivatives of p-nitrophenyl (PNP) ß-D-glucopyranoside, which were regioselectively substituted at 0-2, 0-3, 0-4 and 0-6 positions was studied. Several ß-glucosidases from brown-rot, white-rot, and soft-rot fungi and almond were used for the study. These ß-glucosidases did not act on the 2, 3, and 4-0-methyl derivatives, while the 6-0-methyl on...
T Nishimura, I Momohara, M Ishihara
Which substrate to use in a laboratory test with soft rot micro-fungi: vermiculite or unsterile soil?
1991 - IRG/WP 2372
A draft European Standard is being proposed by CEN TC 38 in which a vermiculite-burial and a soil-burial test to be carried out in succession are required. Various experiments with both procedures were set up with CCA, CC and propiconazole-formulations. The results show that vermiculite and unsterile soil yield comparable threshold values against soft rot. This poses the question of whether a two-...
A R Valcke
Effect of moisture and cellulosic substrate on decay of hardwoods by soft-rot fungi
1982 - IRG/WP 2173
The development by Forintek Canada Corp. of standard test procedures for laboratory preservative evaluations using soft-rot fungi was requested by the American Wood Preservers' Association. In Europe, through cooperative studies in the International Research Group on Wood Preservation, several attempts have been made to produce a standard procedure, but variability in results obtained bet...
A Byrne, R S Smith
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
In-house accelerated method for testing decay resistance of treated wood
2004 - IRG/WP 04-20286
Fungicidal compounds often change their effectiveness when they are incorporated into candidate formulations. For this reason fungistatic effectiveness needs to be re-evaluated as many times as the formula has been modified for better performance. To avoid multiple expenses, in-house fungistatic tests are essential. Our goal was to develop in-house usable, simple but reliable and reproductive proc...
N Vidovic
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
Effect of substrate type and moisture requirements in relation to colony initiation in two carpenter ant species
1999 - IRG/WP 99-10320
Conditions necessary for optimal colony initiation or the rate of initial colony expansion by early brood in the carpenter ant species Camponotus modoc and C. vicinus on various substrates conditioned to different moisture contents were studied. Camponotus modoc and Camponotus vicinus queens were placed in Douglas-fir, western red cedar and Styrofoam® blocks conditioned in sealed chambers at 70% ...
M E Mankowski, J J Morrell
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 11: Report of fourth inspection (3 years) in Italy
1981 - IRG/WP 471
The wood samples of Alstonia scholaris, Fagus sylvatica, Pinus sylvestris were submerged in the sea at Follonica, Italy, in Apri1 1977. Follonica, latitude 42°55' North and longitude 10°45' East, is situated on the Tyrrhenian coast. The recorded temperature varies from 13°C td 25°C, salinity 37- 38%. and pH about 8. The inspections were carried out after 6 months (10/1977), 1...
A Gambetta, E Orlandi
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 22: Report on the conditions of specimens at Sekondi, Ghana after 60 months
1986 - IRG/WP 4123
The results of the third inspection of CCA and CCB treated test panels exposed at Sekondi, Ghana in June 1980 are presented. None of the panels still in test, i.e. panels of Pinus sylvestris treated with CCA at 3 and 10%, Alstonia scholaris treated with CCA at 10%, Fagus sylvatica treated with CCA at 10%, and Erythrophleum ivorense and Mitragyna stipulosa both treated with CCB at 10%, shows any ex...
F F K Ampong, N Asare-Nyadu
IRG/COIPM INTERNATIONAL MARINE TEST - To determine the effect of timber substrate on the efectiveness of different preservatives in sea-water: Coding scheme
1976 - IRG/WP 420
It was agreed in Wildhaus on 15 May 1976 that preparations for the test detailed in Document No: IRG/WP/414 should commence immediately, but that initially only two water-borne preservatives should be used - a copper/chrome/arsenic (CCA) and a copper/chrome/boron (CCB) formulation respectively. PRL, England (R Cockcroft) would be responsible for supplying only the reference species treated with th...
Anonymous
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 17: Report of fifth inspection (4 years) in Italy
1983 - IRG/WP 4103
The wood samples of Alstonia scholaris, Fagus sylvatica, Pinus sylvestris were submerged in the sea at Follonica, Italy, in April 1977. Follonica, latitude 42°55' North and longitude 10°45' East, is situated on the Tyrrhenian coast. The recorded temperature varies from 13°C to 25°C, salinity 37-38% and pH about 8. The inspections were carried out after 6 months (10/1977), 12 ...
A Gambetta, E Orlandi
Influence of the nature of the substrate and the method of inoculation on the degradative activity of soft rot fungi
1998 - IRG/WP 98-20133
The European Standard (ENV-807) determines the threshold of effectiveness of wood preservatives against the action of soft rot Ascomycetes fungi. Its application in the treatment of wood used in the hazard class 4 does not always offer repeatable results, which could be expected in an experimental norm.
For this reason, in this paper, we have evaluated the diverse variables that might influence t...
M T De Troya, A M Navarrete, F Rubio, J Jiménez, D Muñoz-Mingarro, C Rodríguez-Borrajo, F Llinares, M Yuste
Chemical reactions involved in furfurylation of solid wood - An investigation by ATR-IR spectroscopy
2006 - IRG/WP 06-40347
Wood modification with furfuryl alcohol (FA) has gained renewed interest during the last five to ten years because of advances in process technology and because of increased focus on the environmental hazards of traditional wood impregnation. The reaction mechanisms involved in the furfurylation process are not yet understood in detail. In the work presented here, the chemical reactions and their ...
T Mark Venås, L Garbrecht Thygesen, S Barsberg
Furfurylated wood - An alternative to Preservative-treated wood
2006 - IRG/WP 06-40349
Chemically modified wood is currently being marketed as a non-toxic alternative to traditional preservative treated wood (wood impregnated with biocides). Over the last decade the authors have developed modernised processes for wood modified by furfurylation. These new systems do not add metals or halogens to the product, which is important for an environmentally acceptable product. This presentat...
S Lande, M H Schneider, M Westin, J Phillips
Wood furfurylation process development. Part 1: Oscillating Pressure Method
2007 - IRG/WP 07-40376
Furfurylated wood (wood modified by furfuryl alcohol) has over the last years gained marked shares from both tropical wood and conventional preservative treated wood and this has, in turn, generated several research projects concerning process development. The impregnation of spruce is well known from literature to be a difficult task. Furthermore, the sapwood of Scandinavian-grown Scots pine is a...
E Larnøy, M Westin, B Källander, S Lande