Your search resulted in 130 documents. Displaying 25 entries per page.
Minutes of the WG II meetings
1991 - IRG/WP 2388
IRG Secretariat
Agenda WG II
1969 - IRG/WP II 1
IRG Secretariat
Agenda WG II
1972 - IRG/WP 207
IRG Secretariat
Agenda WG II
1985 - IRG/WP 2245
IRG Secretariat
Minutes of the meetings of WG II
1978 - IRG/WP 2122
IRG Secretariat
Agenda WG II
1978 - IRG/WP 2110
IRG Secretariat
Agenda WG II
1976 - IRG/WP 261
IRG Secretariat
Minutes of the meetings of WG II
1977 - IRG/WP 295
IRG Secretariat
Abstracts of some papers promised for IRG 22, Part II
1991 - IRG/WP 5370
IRG Secretariat
Agenda WG II
1975 - IRG/WP 245
IRG Secretariat
IRG Working Group II. Co-operative leaching test (letter to collaborators)
1974 - IRG/WP 239
J W W Morgan
Minutes of the Meetings of WG II 1973
1973 - IRG/WP 226
IRG Secretariat
Minutes of the meetings of WG II
1985 - IRG/WP 2246
IRG Secretariat
Minutes of the Meeting of WG II 1970
1970 - IRG/WP 26
IRG Secretariat
Leaching of inorganic wood preservatives – Investigating the relationship between leachability, dissociation characteristics and long-term leaching potential
2003 - IRG/WP 03-50199
Estimation of the leaching properties of preservative components is greatly affected by the leaching test method applied since not all methods equally consider the physical components responsible for leaching. These include: wetting of the wood and penetration of water (affected by dimensions, amount of end grain, permeability, duration and nature of water exposure); solution of preservative comp...
L Waldron, Y T Ung, P A Cooper
Ekki heartwood - is “Durable”
2002 - IRG/WP 02-10444
Severe decay damages of bridges made of ekki (Lophira alata Banks) wood which is classified as a durable species in the EN 350:2 as already reported at the 31 IRG annual meeting. This paper deals with results of long-term decay tests of ekki heartwood specimens using 3 isolates (Loweporus tephroporus 2 strains and a fungus of other sp. from damaged ekki bridges) and Trametes versicolor as a refere...
S Doi, R Itoh, S Horisawa
Long term performance of CCA preservatives in ground contact
2000 - IRG/WP 00-30223
Copper-chrome-arsenate (CCA) preservatives have been use extensively in New Zealand since the mid-1950s for a wide range of ground contact uses, radiata pine being the main species treated. They have been the subject of a comprehensive field testing programme in up to five sites in New Zealand, the earliest tests being established in 1955. Main factors affecting performance have been formulation t...
M E Hedley, D R Page, B E Patterson
The effect of high temperature and long pressing time on the dimensional stability and decay resistance of OSB
2002 - IRG/WP 02-40237
The exterior use of OSB is restricted because when it is exposed to wet conditions swelling, loss of internal bond strength (IB) and decay occur. In this study an alternative process of pressing which results in the production of dimensionally stable and a more decay resistant strandboard was investigated. Boards were pressed at elevated temperatures for prolonged pressing cycles and their physi...
G J Goroyias, M D C Hale
Minutes of the meetings of WG II
1987 - IRG/WP 2296
IRG Secretariat
Agenda WG II
1970 - IRG/WP II 5
IRG Secretariat
Minutes of the meetings of WG II
1990 - IRG/WP 2360
IRG Secretariat
Long-term protection of stored lumber against mould, stain, and specifically decay: A comparative field test of fungicidal formulations
1984 - IRG/WP 3281
The problem of decay in packaged, unseasoned lumber stored for many months has become of major importance in recent years. Large financial claims have resulted from decay in Canadian lumber stored at length in seaports and storage yards of distributors. For decades acceptable protection from moulds and sapstain was readily achieved with chlorinated phenols applied at appropriate treating levels. H...
A J Cserjesi, A Byrne, E L Johnson
Bending creep test of plywoods under long term exposure to fungal attack
1981 - IRG/WP 2163
Bending creep test and decay test were coupled in order to evaluate the durability of structural plywoods and preservative efficacy. Experimental blocks, 5.0 x 1.2 cm² section x 35.0 cm length, were impregnated with distilled water and inoculated with mycelial fragments of test fungus. Polyethylene bags stretched with metal frame were used as decay chambers. The chambers containing inoculated blo...
M Takahashi
Albumin borate: A new non-toxic, wide-spectrum, long-term wood preservative
1998 - IRG/WP 98-30167
Boron, widely recognized for its broad range of activity towards both fungi and insects and for its low mammalian toxicity, can not provide long term protection to treated timber due to its high leachability.
Boron, in the form of boric acid, can be partially fixed to timber by the formation of an association with egg albumin, which is insolubilized by heat-induced coagulation. Chemical investiga...
M-F Thévenon, A Pizzi, J-P Haluk
Resolution from IRG Working Group II Sub-group 4 'Stain in timber in service'
1984 - IRG/WP 2230
Sub-group 4 of IRG Working Group II has completed a series of studies of artificial weathering as an alternative to natural weathering in relation to testing the efficacy of chemicals in preventing blue stain in service. The Sub-group reports that within the limits of the equipments studied and described in its report Document No: IRG/WP/2215 the extent of blue stain varied little as a direct cons...
D J Dickinson