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SEEFOR 2 (1): 51-57
DOI: http://dx.doi.org/10.15177/seefor.11-06

Professional paper


Conversion Coefficients for Distilling Wood in Running Standards and Everyday Practice

Srđan Ljubojević 1*, Dane Marčeta 1, Slobodan Kremenović 1  

1 University of Banja Luka, Faculty of Forestry, Stepe Stepanovića 75a, 78000 Banja Luka, Bosnia and Herzegovina

* Corresponding author: e-mail:  

LJUBOJEVIĆ S, MARČETA D, KREMENOVIĆ S 2011 Conversion Coefficients for Distilling Wood in Running Standards and Everyday Practice. South-east Eur for 2 (1): 51-57. DOI: http://dx.doi.org/10.15177/seefor.11-06 

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Background and Purpose: Need for distilling wood is rather significant on the wood market in Republic of Srpska. Delivering of distilling wood is done according JUS standard. Purpose of this research was to explore how much this standard is appropriate for present assortment of wood which deliver and use as distilling wood, and what are main problems.
Material and Methods: Research was conducted at the premises of the company “Destilacija” a.d. Teslic. It was selected samples of distillation wood in a random manner, so as to check accuracy of conversion factors stated in the delivery note. Subject of interest were loads with one-meter log wood for distillation. Conversion coefficients are determined by using xylometry method and dendrometric method.
Results and Conclusion: Conversion factor based on xylometry varies considerably between 0.45 – 0.58. Results lead to the conclusion that appliance of officially prescribed conversion factor leads to over estimation of delivered distillation wood. Also results of dendrometric measurements and calculating of volume show that conversions factors are significantly lower than those one obtain with the xylometry 0.36-0.52. Main reason for that may laying in the fact that measurements was done according to JUS which prescribes measurement with rounding down for diameter (round centimeters) and length (round decimeters). Dendrometric measurement according JUS is not appropriate for assortments from the category of staked wood. Conversion coefficients must be determined for different moisture content. One solution for described gap may be shift to weight scaling. In that case mistakes caused by measurement could be avoided but it must be considered moisture of wood also. Wood for distilling should be as dry as much as possible before use, around 20 % moisture content.

Keywords: distilling wood; conversion coefficients; xylometry method


  1. BEGOVIĆ B 1986 Eksploatacija šuma i razvoj industrijske prerade drveta na području Usorsko-teslićnog regiona za vrijeme austrougarske uprave u Bosni i Hercegovini. Savez inženjera i tehničara šumarstva i industrije za preradu drveta Bosne i Hercegovine, p 1-78
  2. HEMIJSKA INDUSTRIJA DESTILACIJA A.D. TESLIĆ 2008 O Destilaciji. Available at: http://www.destilacija.rs.ba/ (Accessed: 21 November 2010)
  5. THIVOLLE-CAZAT A 2008 Conversion factors. A necessity fo an accurate estimation of wood consuption by industries. Pôle Economie, Energie et prospective Institut Technologique FCBA, p 1-12
  6. UNECE, FAO 2010 Forest product conversion factors for the UNECE region. Geneva Timber and Forest Discussion Paper 49, p 1-38
  7. ALAKANGAS E 2005 Properties of wood fuels used in Finland. Technical Research Centre in Finland, VTT  Processes,  Project report PRO2/P2030/05, p 1-31
  8. THE EEUROPEAN COMMISSION 2010 Combined Nomenclatureen. Chapter 44, Wood and articles of wood; wood charcoal. Official Journal of the European Union 29.10.2010, p 305-315
  9. HORVAT I, KRPAN J 1967 Drvno industrijski priručnik. I dio
  10. GORNIK BUČAR D, MERZELJ F 1998 Žagarski praktikum. Ljubljana, Biotehniška fakulteta, p 151
  11. PIRINENE H 1996 Bulk and stack density of chopped wood. TTS-Institute. Hand-outs 6/1966 (48): 1-32
  12. KOFMAN DP 2006 Characteristics of firewood. Harvesting/Transportation No. 5. Coford. Danish Forestry Extension, p 1-4
  13. JENNINGS LG 1965 A glossary of log and timber measures. Wood (magazine) August-December.
  14. FLANN IB 1962 Some conversion factors and related information for use in the primary forest industry of Eastern Canada. Tech. Note 26. Departement of Forestry. Forest Products Research Branch. Otawa, Canada.
  15. EN 1309-2 2006 Round and sawn timber – Method of measurement of dimensions – Part 2: Round timber – Requirements for measurement and volume calculation rules, p 1-16
  16. ŐZÇELIK R, WIANT VH, BROOKS RJ 2008 Accuracy using xylometry of log volume estimates for two tree species in Turkey. Scand J Forest Res 23 (3): 272-277. DOI: http://dx.doi.org/10.1080/02827580801995323


© 2015 by the Croatian Forest Research Institute. This is an Open Access paper distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0).