Your search resulted in 13 documents.
The collaborative developement of soil acceptance criteria for timber treatment chemicals in New Zealand
1995 - IRG/WP 95-50040-34
In New Zealand, the issue of potential contamination on timber treatment sites arose in the late 80's due to the long history of use of PCP by the industry. One of the recommendations from the task group set up to investigate the issue was the development of a set of acceptance criteria to define trigger levels for remediation. A technical group from the government, industry and regional ...
H C Boyd
Possibility of use of wood species per class of biological risks. Attempt to determine criteria based on Pr EN 350-1/2/3
1992 - IRG/WP 92-2409
Criteria for basidiomycetes testing and ways of defining natural durability classes
1998 - IRG/WP 98-20144
Within the framework of a European research project several laboratories have tested a series of 17 wood species covering the total range of natural durability. Basidiomycete tests are part of the total set up. Although generally based upon standard methods some minor differences in execution of the tests were evaluated for their impact on the results. This variation was superimposed with the fac...
J Van Acker, M Stevens, J K Carey, R Sierra-Alvarez, H Militz, I Le Bayon, G Kleist, R-D Peek
Quality assured wooden sidings - Criteria, performance evaluations and current status
2000 - IRG/WP 00-20216
Quality assured wooden sidings were brought to the Swedish market in 1998. The system was worked out during a six year period in a close cooperation between the sawmill industry and several research institutes. Centuries of use have given a wealth of experience of spruce boards as a siding material, showing that it works well in most cases but also that its longevity is highly variable, depending ...
F Englund, I Johansson, J Ekstedt, R Nussbaum
Recent development in North American industrial wood preservation plants
1988 - IRG/WP 3467
After remaining static for many years there have been a number of changes in plant design and treating cycles in recent years. This has been particularly true in the USA where few restrictions are placed on plant treating cycles by specifications; since only results type specifications are used. It is also important to realize that the AWPA Specifications for Southern Yellow Pine only call for tre...
J F Bridges
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...
Performance criteria for approving new wood preservatives for ground contact
1994 - IRG/WP 94-20021
Protocols for testing novel formulations prior to approval or registration as wood preservatives are being developed in a number of countries, e.g. Australia, New Zealand, USA. One aspect which must be addressed is the effectiveness in tests relative to that of currently approved formulations which would be acceptable to approving authorities. It is assumed that natural exposure testing is a prere...
M E Hedley
Benzalkonium chloride (an AAC preservative): Criteria for approval, performance in service, and implications for the future
1985 - IRG/WP 3328
The data base generated for benzalkonium chloride was considered adequate for commercial approvals, particularly after revision in late 1982. Field trials, although not part of the approval criteria, generally supported commercial use; decay observed in one test (post and rails) after 6 years' exposure would have resulted in some caution in setting retentions. No laboratory trial, nor fie...
J A Butcher
Criteria for environmentally and socially sound and sustainable wood preservation industry
2006 - IRG/WP 06-50237
This paper is dealing with critical criteria for environmentally and socially sound and sustainable wood preservation industry. A research study supported by past experience, knowledge and training on relevant topics and consultation of relevant appraisal manual, training module and technical guideline revealed concise widespread checklists for sustainable establishment of wood preservation indust...
A K Lahiry, M Hasan, M A J H Chowdhury
Review of candidate graded particle barrier testing methods in Australian Standard (AS 3660.3 – 2000): Assessment criteria for termite management systems
2009 - IRG/WP 09-20417
The Australian Standard (AS. 3660.3 – 2000) for assessment of candidate graded particle termite barriers is reviewed and suggestions for amendments are made. Areas requiring amending in light of current biological knowledge involve the inclusion of proprietary or patented systems rather than generic types; selection of test termites in the genus Coptotermes; duration of test periods; and inadequ...
J R J French, B M Ahmed (Shiday), B L Schafer
Implementation of a Quality Assurance System for thermally modified timber (TMT) by the Association of Central European TMT-Producers
2011 - IRG/WP 11-40558
Due to increasing market shares of thermally modified timber (TMT) in Europe, a working group of ten central European TMT manufacturers (TMT-WG) was founded in 2010 to cover public relations and marketing activities. Since the present level of product testing and property declaration was not satisfying, a “task group TMT-quality” was put into action in 2010 to develop a comprehensive quality a...
C R Welzbacher, W Scheiding
The Technical Criteria on Biological Evaluation of Wood Preservatives for Use Category C4.1 in Southern China
2012 - IRG/WP 12-20481
According to the Regulations on Pesticide management of the People's Republic of China, wood preservatives belong to agrochemicals. The establishment of registration system on wood preservatives would be benefit to management of preservatives, including the market entrance and safety insurance to the human beings, livestock and the environment associated by the application of these preservati...
Xingxia Ma, Mingliang Jiang
Wood chemistry completes natural durability as criteria for shorting best provenances in the improvement of teakwood quality: case of five provenances from Ivorian Séguié’s trial
2018 - IRG/WP 18-10920
In order to determine the best provenance for continuing breeding program in Côte d’Ivoire, five provenances of teak planted in 1970 at Séguié’s trial (Agboville, in the south of Côte d’Ivoire), were compared. Fifteen trees (three trees per provenance) composed the sample. Decay resistance and the chemical content especially, non-structural carbohydrates, total phenolics and quinone comp...
F B Niamke, N Amusant, A A Adima, A A Kadio, G Chaix, C Jay-Allemand