IRG Documents Database and Compendium

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A standardised procedure for the treatment of timber with test chemicals
1986 - IRG/WP 2257
A procedure is described which allows the standardisation of sample handling and data manipulation during trials invastigating the treatability of timber with test chemicals. The use of computer software allows the data to be handled efficiently.
J Norton, A Zosars, L E Leightley

Problem of the treatment of dried sawn spruce building timbers with water-borne preservatives. Interim reports for discussion at the 4th Annual Meeting in West Berlin on 27 October 1972
1972 - IRG/WP 311
One of the most difficult technical problems facing the preservation industry is how to improve the treatment of refractory species of timber such as spruce. Its resistance to penetration, even under pressure' precludes its use for more hazardous service situations, and even in less severe conditions a higher level of treatment would be desirable. The importance of this subject led us to look once again at possible ways of improving treatment.
W Liese, J W W Morgan, T Hof, R O Ullevålseter

Reports from IRG Corresponding Members 1996
1997 - IRG/WP 97-60083
IRG Secretariat

Guidance for corresponding members in preparing annual reports
1995 - IRG/WP 95-60056
IRG Secretariat

Guidance for corresponding members in preparing annual reports
2003 - IRG/WP 03-60178
IRG Secretariat

Section reports from IRG 39
2008 - IRG/WP 08-60264
Compilation of reports from sections 1-5.
J Norton

Section reports from IRG 40
2009 - IRG/WP 09-60281
J Norton

Section reports from IRG 41
2010 - IRG/WP 10-60300
J Norton

Section reports from IRG 42
2011 - IRG/WP 11-60317
J Lloyd

Section reports from IRG 43
2012 - IRG/WP 12-60335
J Lloyd

Imaging fungal deterioration of wood using x-ray microtomography
1997 - IRG/WP 97-10240
Nondestructive tomographic images of solid Southern yellow pine (SYP) wood and SYP during deterioration by wood decay fungi were obtained by using a new class of synchrotron X-ray computed microtomography (CMT). The CMT images will provide information about spatial relationship between degrading fungi and wood structures. Wood samples were scanned with synchrotron-generated X-rays at high resolution (3 microns) using Charge Coupled Device (CCD) area detectors. The CCD detector array optimizes reconstruction algorithms with 329 x 259 small pixels where 1 row of pixels constitutes a single 2-dimensional slice of a specimen. A total of 500 horizontal slices comprising each data set were stacked to reconstruct a 3-dimensional volume of the specimen. Color images were computer-generated in 2-dimension to portray single slices of select cross or tangential sections and 3-dimensional volumes of the wood. Reconstructed volumes can be viewed on 3-dimensional video by fiber optic link to a 3-dimensional stereo viewing theater. The CMT model developed in this work will provide needed information about the chronology and location of structural damage to wood and aid in determining the chemical mechanisms of lignocellulose degradation.
B Illman, B A Dowd

Manual for inspection of waterborne preservative treated timber products
2006 - IRG/WP 06-20322
This paper deals with inspection procedures of waterborne preservative treated timber products. A research study supported by past experience, knowledge and training on relevant issues and consultation of relevant bulletins and standards revealed a concise widespread guideline for the inspection of waterborne preservative treated timber products. Through this paper different types of templates on white inspection, pre-shipment inspection at treating plant, destination inspection, essential for the inspection of timber products, have been presented. The Rural Electrification Board in Bangladesh and its manufacturers often uses the said templates.
A K Lahiry