Your search resulted in 1020 documents. Displaying 25 entries per page.
Improvement of analytical methods of wood preservatives and its validation with collaborative testing
2019 - IRG/WP 19-20655
…discussion paper presents on-going collaborative test of analytical methods of wood preservatives according to the standardization process of Japan Agricultural Standard (JAS) by the Ministry of Agriculture, Forestry and Fisheries (MAFF). Food and Agricultural Materials Inspection Center (FAMIC) in close cooperated…
T Miyauchi, K Yamamoto, N Shota, Y Akabori, M Ikeda, J Eisawa, K Kambara, T Osawa, C Igarashi, Y Baba, W Ohmura, M Shimizu, M Samejima
Developing Analytical Methods for Determination of Quaternary Ammonium Compounds (DDAC) using HPLC and HPLC-MS (Application to treating solution and preservatives treated wood)
2013 - IRG/WP 13-20516
…preservatives require developing accurate and reproducible analytical methods. Although a long historical titration method has been successfully applied to quantify quaternary ammonium compounds (QACs), the method cannot tell DBAC from DDAC in the analytes. The objective of this study was to develop and optimize a…
Sung-Mo Kang, Kwon-Min Kim, Won-Mo Koo, Myeong-Won Cho
Water analysis in chemicals, wood or chemically treated wood using a new analytical method for selective water detection
2006 - IRG/WP 03-30391
…it needs to be extensively monitored. In this study, a new method for the moisture content or trace water analysis will be reviewed. The principle of the method, the main components of the device, the advantages and disadvantages of the method called Selective Water Detection System (SWDE), will be reviewed and…
R Craciun, D Taylor
Optimisation of an analytical method for the determination of total fluoride in preservative-contaminated soils using water steam distillation and an ion-selective electrode
1999 - IRG/WP 99-20153
…distillation and an ion-selective electrode. Distillation methods generally require a preliminary preparation step like fusing. The modified method presented here is based on the direct distillation of fluoride so that no further sample preparation is necessary. The separation is carried out in a perchloric acid…
E Melcher
Rapid analytical methods for wood waste - An overview
1998 - IRG/WP 98-50104
…care is demanded to avoid environmental impacts. Thus, analytical methods are requested to detect rapidly whether and to what extend wood is contaminated, covering a wide spectrum of organic and inorganic agents used during the last 50 years. Traditional methods can not meet today's requirements due to…
A Peylo, R-D Peek
Analytical retentions of active ingredients in H2F treated framing over a 12-year period
2023 - IRG/WP 23-20702
The H2F hazard class in Australia was developed to treat internal framing timber with a surface application of an insecticide, to control mainly termites. Two of the actives approved in AS 1604.1-2010 (and subsequent revisions) for this hazard class are bifen…
A Siraa
A review of the analytical methods used in determining the decay resistance of heat treated wood
2015 - IRG/WP 15-40690
…to develop inexpensive, fast and nondestructive industrial methods to control the process and predict heat-treated wood quality. This review therefore describes recent studies and synthesizes the major publications which have been conducted on better understanding on wood thermal modification and on the development…
K Candelier, M-F Thévenon, A Pétrissans, S Dumarçay, P Gérardin, M Pétrissans
Copper naphthenate: An analysis of the materials found in the worldwide marketplace using a new analytical technique
2000 - IRG/WP 00-30224
…naphthenate in commercial markets and investigates a novel analytical technique and a modification of this technique to characterize the copper naphthenates found in commercial use worldwide. The basic analytical technique was recently published as an appendix to the American Wood Preservers' Association P-5…
J A Brient, R E Moyer, M H Freeman, H Jiang
A comparison of analytical techniques
1995 - IRG/WP 95-20061
…weight retentions and analysis by XRF, ICP, combustion methods and a new extraction procedure for the new preservative, Copper(II) Dimethyldithiocarbamate (CDDC). Various experimental parameters such as particle size and drying conditions were investigated. In general, the correlations between and among the…
A C Gallacher, C R McIntyre, M H Freeman, D K Stokes, W B Smith
A comparison of analytical and visual techniques used for assessment of weathering properties of chromium and copper azole treated timber
1994 - IRG/WP 94-20023
The weathering properties of preservative treated timber were studied by measuring surface lignin loss and by microscopic examination after weathering, and results were related to qualitative assessments of visual appearance after weathering. Measurement of re…
J A Cornfield, M D C Hale, G Fettis
The appropriateness of central one-ninth or core retentions as a means of demonstrating penetration compliance
2023 - IRG/WP 23-40976
…retention is relatively straight forward, assuming that an analytical method exists for the analysis of the preservative active ingredient(s) in question. Traditionally the penetration of preservatives has been assessed visually, either through being able to distinguish treated from untreated areas, e.g. as in the…
D Humphfrey, B Skewes
Measurement of copper concentration in Cu-HDO treating solutions by handheld XRF
2022 - IRG/WP 22-20685
…desired quality of the preservative treated wood. Many analytical methods are time consuming and must be performed under laboratory conditions, while others that are rapid and easy to apply at industry sites can be sensitive to impact from impurities, etc. The aim of this study was to evaluate handheld X-ray…
P O Flaete
Monitoring of wood preservatives exposed to weathering: Extraction and analysis methods of organic biocides from treated wood and collected rain runoff
2020 - IRG/WP 20-30753
…service life. This document deals with extraction and analytical methods for biocide characterization from Use Class 3 treated woods and collected rain runoffs. Analysis by gas chromatography coupled to tandem mass spectrometry (GC-MS/MS) showed limits of quantification (LOQs) in the order of microgram per litre…
O Ouali, K Le Ménach, E Raphalen, L Podgorski, S Legay, H Budzinski
Comparison of 1H qNMR and NIR spectroscopic methods to predict heartwood decay resistance in Dicorynia guianensis Amsh
2017 - IRG/WP 17-20601
…for ensuring a rational use of the resource. Two methods in analytical chemistry are reported herein using near infrared spectroscopy (NIRS) and quantitative nuclear magnetic resonance (qRMN) spectroscopy. Correlations of decay resistance assays with either alkaloid (tryptamine) quantification by qRMN or…
C Flora, G Frédéric, M-F Thevenon, Y Estevez, C Duplais, N Amusant
Preparation of Calibration Standards for the Analysis of Pentachlorophenol in Treated Wood by X-ray Fluorescence
2016 - IRG/WP 16-20591
The primary purpose of this project was to develop a method for preparing calibration standards that can be used by the wood treating industry to calibrate X-ray fluorescence instrumentation. Calibration standards of penta/P9-oil in southern yellow pine that cover the retention range of 0.2 to 0.9 pcf (0.6 to…
L L Ingram Jr, H M Barnes, R Shmulsky, D Jeremic
Visualization of gold/silver nanostars in wood by surface enhanced Raman spectroscopy
2014 - IRG/WP 14-30653
…Raman scattering (SERS) offers unique advantages as an analytical tool with a high selectivity and sensitivity without matrix interference. Here, we design and fabricate SERS-tagged silver/gold nanostars (NSs), coated with a silica shell encapsulating nile blue A (NBA), as potential platforms for SERS imaging.…
C Geers, L Rodríguez-Lorenzo, M Placencia Peña, P Brodard, T Volkmer, B Rothen-Rutishauser, A Petri-Fink
Study of the use of organosolv lignin as bio-preservative of wood
2012 - IRG/WP 12-30603
…resulting lignin samples were characterized by different analytical techniques such as FTIR, GPC, and TGA. Furthermore, the antioxidant potential of lignin by ABTS method and the fungicide potential by ASTM D 2017 – 81 were analyzed. The analyzed lignin showed neutralization and inhibition activities (antioxidant…
P S B dos Santos, A Garcia, P H G de Cademartori, D A Gatto, J Labidi
Comparative investigations between thermal and microwave assisted digestion as a novel tool for the chemical analysis of inorganic wood preservative components
2011 - IRG/WP 11-20461
…it is often difficult to analyse such material since most analytical procedures are based on liquid systems. Because of this quite a number of methods – like extraction or thermal digestion - were developed in order to transfer the active to a suitable solvent, some of which are standardised. However, due to…
H Ahl, J Fromm, E Melcher
Use of the Digital Refractometer for the On-site Analysis of Copper-based Preservative Systems
2007 - IRG/WP 07-20371
In some counties, there are no on-site chemical analysis methods available for treatment plants to use to determine the key active ingredients in the preservative treatment solutions. The complexity of the sophisticated methodology; cost of analytical instruments and training required for operating these…
L Jin, T Cashman, A Preston, J Trompetter, H Trompetter
Gas chromatographic determination of 1,8-naphthalimide, N-Hydroxy-1,8-naphthalimide (N,N-naphthaloylhydroxylamine) and the sodium salt of N-Hydroxy-1,8-naphthalimide
2003 - IRG/WP 03-20259
…limited information is available concerning the analytical detection of NI-derivatives in treated timber. There is a clear need for the analytical characterisation; e.g. with regard to the penetration depth or the assessment of retention after leaching.
This paper describes the development of a gas…
E Melcher, F Green III
The quantitative determination of quaternary ammonium compounds in treated timber – results of an extended ring test
2002 - IRG/WP 02-20240
…detergents in aqueous solutions. It is known that this analytical principle can also be used for the measurement of QAC extracted from treated timber. However only few information are available concerning the reproducibility or the recovery rate of this procedure.
In order to validate the whole technique an…
E Melcher, C Bornkessel, J Gunschera, R Hamberg, H Härtner, H-N Marx, U Schoknecht, J Wittenzellner
Measurement of VOC emissions from curative treated wood: A new emission test chamber
2001 - IRG/WP 01-50166-13
…potential heath impact of emitted pollutants, standardised analytical methods are needed. The aim of this paper is to present the new standards prepared by the European Committee for Standardization (CEN) and the International Organization for Standardization (ISO) for the measurement of indoor air pollutants and…
F Maupetit, O Ramalho, C Yrieix
The identification of organic compounds in wood using thermal desorption GC-MS - possibilities and limitations
2001 - IRG/WP 01-20224
There is a clear need for the analytical characterisation and identification of organic compounds and their derivatives in different phases especially in timber. In this context the paper describes a rapid and powerful gas chromatographic method for the determination of insecticides,…
P Jüngel, E Melcher
Development of a turbidity method for the determination of water repellent in CCA treatment solutions
2000 - IRG/WP 00-40177
…treated wood production there was a requirement to develop analytical methods for the determination of the water repellent concentration in treatment solutions for quality control at wood treatment facilities. Various methods were examined for the determination of water repellent emulsions in wood treatment…
P J Walcheski, L Jin
Analysis of water repellents in wood treated with water borne formulations using FTIR
2000 - IRG/WP 00-40176
…usage of such products. there has been a need to develop analytical methods for the determination of the water repellent in treated wood products to ensure product quality and to aid in the development of enhanced water repellent formulations. A method for the determination of the water repellent concentration in…
P J Walcheski, L Jin