Your search resulted in 365 documents. Displaying 25 entries per page.
Tebuconazole - a new triazole fungicide for wood preservation
1991 - IRG/WP 3680
The great potential of Tebuconazole for wood preservation is demonstrated. Test carried out by official institutes shown that Tebuconazole is particularly effective against wood-rotting basidiomycetes strains. The efficacy of Tebuconazole against the brown rot Gloeophyllum trabeum is outstanding: the toxic value measured in accordane with EN 113, without·ageing, after leaching (EN 84) and after e...
O Exner
Collaborative soft rot experiments 1974. Preliminary analysis of results
1975 - IRG/WP 251
J K Carey, J G Savory
Creosote movement from treated wood immersed in fresh water: Initial PAH migration
2003 - IRG/WP 03-50201
Creosote has a long history of successful use as a wood preservative, but polycyclic aromatic hydrocarbons (PAHs) in this preservative have raised environmental concerns, particularly when creosote-treated wood is used in aquatic environments. A number of models have been developed to predict the risk of creosote use in aquatic environments, but one limitation of these models is a lack of data o...
Sung-Mo Kang, J J Morrell, J Simonsen, S T Lebow
The use of chlorothalonil for protection against mold and sapstain fungi. Part 1: Laboratory evaluation
1989 - IRG/WP 3515
Laboratory screening of chlorothalonil alone and in combination with other fungicides was conducted against six mold and sapstain fungi. The most promising treatments appear to be chlorothalonil supplemented with CCA or copper-8-quinolinolate. Field tests have been implemented....
J A Micales, T L Highley, A L Richter
Chemical analysis of TnBTO in lap-joints
1999 - IRG/WP 99-20173
This research was performed as part of the EU project FACT (contract SMT4-CT96-2135) on field tests out of ground contact and ageing methods. The results reported here are part of the work on the experimental lap-joint standard (ENV 12037). TNO investigated the TBTO content of 32 lap-joints by analysing the tin content of 90 samples. The lap-joints were treated with two different TBTO-concentratio...
A Voss, P Esser, W L D Suitela
Detection of trace organics by ion mobility spectrometry
1990 - IRG/WP 3635
Ion Mobility Spectrometry (IMS) is a time of flight analytical technique that is suited to detect chemicals in the low parts per billion range. Some of the advantages of IMS are: operation at atmospheric pressure, fast response time (0.1-10 sec), and the ability to characterize individual chemical species in complex matrices without any prior sample preparation. In this paper, the utility of IMS i...
A H Lawrence
Life cycle analysis: Assessing environmental impact
1994 - IRG/WP 94-50034
Environmental impact assesment is a major issue that faces every nation today. However, consistently and objectively measuring the environmental impact is difficult. During the past two decades, a process called life cycle analysis was developed that tried to make consistent and objective environmental assessments. The Society of Environmental Toxicology and Chemistry broadened the concept to not ...
S L LeVan
Flow charts for termite and decay tests to determine the natural durability of Japanese cedar (Cryptomeria japonica D. Don)
2008 - IRG/WP 08-20385
This paper deals with the experimental flow charts that were used for determination the effects of fungal decay and termite attack on Sugi heartwood during the course of the study of “Comparative studies of natural durability of Japanese cedar (Cryptomeria japonica D. Don) among the geographic cultivate”, which was carried out by Usta et al (2006)....
I Usta, S Doi
Radio frequency heating times for sterilization radiata pine solid piles
2017 - IRG/WP 17-40815
In this work was sterilized wood packaging material of radiata pine, stacked as solid piles without stickers, for determining the heating times using radiofrequency treatment. The experiments were performed in a radio frequency semi-industrial equipment. The results showed that the radio frequency heating times increases with wood volume and that radio frequency treatments were faster than convent...
H Esquivel, V Sepúlveda, J Torres, L Salvo, R A Ananías
A study of salt imbalances observed in recycled copper/chrome/arsenic preservative solutions in commercial practice
1987 - IRG/WP 3461
The study reported monitored tank solutions, sludge and other by-products using a standard CCA solution, when recycled. This recycling of the CCA solution is quite usual in between any commercial treatment schedules. Salt imbalances were observed and the possible reasons for such phenomena were studied. The paper discusses the procedure followed, the method of sampling the liquid after the charge ...
V R Sonti, S Sonti, B Chatterjee
The use of image analysis to quantify soft rot decay
1992 - IRG/WP 92-2410
Image analysis techniques can provide quantitative information from visual images. As part of a wider interest in decay assessment methods we have investigated the application of image analysis techniques for quantifying soft rot decay by Chaetomium globosum in transverse sections of birch wood and bamboo. A method for reducing contamination of the section (and image) by the fungal hyphae and of s...
P J Wickens, R J Murphy
Isolation of the dry rot fungus, Serpula lacrymans, from the forests of the Himalayan Foothills
1995 - IRG/WP 95-10129
Previous expeditions to the Himalayas (Singh 1993, 1994) have reported on the presence in this area of the dry rot fungus Serpula lacrymans. However, attempts to isolate the organism from material brought back from these expeditions were not successful. In this paper we report on the isolation of Serpula lacrymans from spores and cord material brought back from the Narkanda region of the Himalayas...
N A White, J W Palfreyman, J Singh, S Singh
Computer-assisted numerical clustering analysis of various strains of Serpula lacrymans (Wulfen:Fr.) Schroeter apud Cohn
1992 - IRG/WP 92-2396
Eight strains of Serpula lacrymans were compared in relation to their previously determined factors (5 physiological and 10 toxicometrical). A numerical clustering analysis was used along with, as coefficient of similarity, "cos Q" after standardization of all results. Results with respect to the combined factors showed a mutual similarity within four groups of strains. The first of these groups c...
J Wazny, J D Thornton, P Stenzel
Occurrence of manganese deposits in test stakes exposed in groung contact situations
1996 - IRG/WP 96-10182
Dark spots and flecks were frequently recognized on the surface and within non-preservative treated hard- and softwood test stakes placed in soil contact. Energy dispersive X-ray microanalysis in conjunction with electron microscopy showed the flecks to be composed primarily of manganese dioxide. Detailed transmission electron microscopy observations indicated intrusion of manganese into the wood ...
G F Daniel, T Nilsson, J Volc
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 9: Report of third inspection (2 years) in Italy
1980 - IRG/WP 461
The wood samples were submerged in the sea at Follonica, Italy, in April 1977. Follonica, latitudine 42°55' North and longitude 10°45' East, is situated on the Tyrrhenian sea. The recorded temperature varies between 13°C to 25°C, salinity 37-38% and pH about 8. The inspections were carried out after 6 months (10/1977), 1 year (4/1978) and 2 years (4/1979)....
A Gambetta, E Orlandi
Life cycle analysis of utility poles. A Swiss case study
1995 - IRG/WP 95-50040-05
Use of preservative-treated wood products faces increasing public and political pressure because of environmental concerns regarding the chemicals used to protect the wood. However, critics usually focus only on one single aspect of the whole life cycle of treated wood products, disregarding other environmental effects of timber utilization. To evaluate the ecological consequences of wooden utilit...
T Künniger, K Richter
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 7: Second report on the samples in Papua New Guinea
1980 - IRG/WP 459
This report presents the findings to date regarding specimens installed in Papua New Guinea, as part of a world-wide marine trial of certain timbers treated with CCA or CCB preservatives. The details of the trial are set out in document number IRG/WP/414. The report discusses the findings in the context of the conditions prevailing at the trial site and of the properties of the trial timbers. The ...
S M Cragg, C R Levy
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 20: Report on the inspection of specimens at Sekondi, Ghana after 48 months
1985 - IRG/WP 4116
The results of the second inspection of CCA- and CCB-treated test panels exposed at Sekondi, Ghana, in June 1980, are presented. The panels of Pinus sylvestris treated with 3% CCA are stil unattacked after 48 months. Panels treated with 10% CCA and still in test (Fagus sylvatica, Pinus sylvestris and Alstonia scholaris) are still free of attack. Locol species treated with 3% CCB have all been dest...
F F K Ampong, N Asare-Nyadu
Chemical analysis for TBTN in LOSP-treated wood and preservative fluids
1994 - IRG/WP 94-20027
Tributyltin napthenate (TBTN) is being substituted for tributyltin oxide (TBTO) in LOSP preservative formulations because its lower reactivity/better stability allows co-formulation with synthetic pyrethroids. Better stability may reduce molecular degradation both in-service and during analysis. It was considered necessary to check whether TBTO analysis methods were suitable for use on TBTN treate...
D P Wraight, M J Kennedy
Analysis of degradation observed on ancient wooden objects buried underground
2001 - IRG/WP 01-10403
Ancient wooden objects were sometimes excavated from the moat of mounded tombs in Japan. Such wooden objects were in the shape of a sunshade, bird, shield, pole, yugi(a bag that holds arrows) among others. Archaeologists discussed the usage of such shaped objects, but no one could clearly explain their use. Some objects were observed using an ordinary microscope. Deterioration by bacteria was foun...
H Sakai
Mapping soft rot decay distribution using image analysis
1993 - IRG/WP 93-20011
Image analysis has been shown to be a useful technique for the assessment of soft rot decay caused by Chaetomium globosum in birch and bamboo (Wickens and Murphy, 1992). The technique can permit assessment of decay in individual or small groups of cells and this has been used to undertake soft rot decay mapping in thin sections of bamboo. Assessments were made of the extent of soft rot decay with ...
P J Wickens, R J Murphy, G F M Watts
Review of remediation methods of sites contaminated by wood preservatives - testing of filter material for use in permeable barrier technology
1999 - IRG/WP 99-50141
Several treatment methods are currently available for treatment of contaminated sites. Soil and water can be treated by immobilisation, separation or destruction of contaminants. It has been common to use intensive treatment methods starting with soil excavation to reach strict purification goals. However, technical and financial reasons make it difficult to reach the desired treatment criteria. A...
G Rasmussen, H Iversen, S Andersen
Comparative environmental impact analysis of telecommunication utility poles: Treated wood and fibreglass
1999 - IRG/WP 99-50136
This study is aimed at providing the information necessary to assess the main environmental implications of different materials utilised in construction of utility poles. The study was performed on fibreglass and CCA treated poles timber. The work has been carried out by identifying and quantifying energy and materials used and wasted released during the entire life of the pole. The interactions w...
A Cugliandolo, M Onofrio, A Quaglino
Chemical Analysis of Southern Pine Pole Stubs Thirty-Nine Months Following Treatment with Three Methylisothiocyanate-Based Fumigants
2004 - IRG/WP 04-30349
Agricultural fumigants have been commercially used in the United States for over 20 years to control internal decay in utility poles and other wooden structures. Of the four fumigants which are currently used in the remedial treatment of utility poles, three are based on methylisothiocyanate (MITC) as being the principal fungitoxic component. Two of these MITC-based fumigants, liquid metham sodi...
R J Ziobro, J Fomenko, D J Herdman, J Guzzetta, T Pope
The chemical analysis and biological evaluation of wood extractives as potential timber preservatives
1995 - IRG/WP 95-30090
Work involved the biological performance of water and organic solvent soluble extractives of four naturally durable wood species, namely; Matumi, Tamboti, Sneezewood and the Turpentine tree. These timber species are known to be naturally durable against termites and fungi (±25 to 35 years). The extractives were evaluated against termites and fungi using impregnated pine pencil stakes in field tes...
P Turner, D Conradie