Effect of Fire Retardant Painting Product on Smoke Optical Density of Burning Natural Wood Samples
Natural wood is used in many applications in Jordan such as furniture, partitions constructions, and cupboards. Experimental work for smoke produced by the combustion of certain wood samples was studied. Smoke generated from burning of natural wood, is considered as a major cause of death in furniture fires. The critical parameter for life safety in fires is the available time for escape, so the visual obscuration due to smoke release during fire is taken into consideration. The effect of smoke, produced by burning of wood, depends on the amount of smoke released in case of fire. The amount of smoke production, apparently, affects the time available for the occupants to escape. To achieve the protection of life of building occupants during fire growth, fire retardant painting products are tested. The tested samples of natural wood include Beech, Ash, Beech Pine, and white Beech Pine. A smoke density chamber manufactured by fire testing technology has been used to perform measurement of smoke properties. The procedure of test was carried out according to the ISO-5659. A nonflammable vertical radiant heat flux of 25 kW/m2 is exposed to the wood samples in a horizontal orientation. The main objective of the current study is to carry out the experimental tests for samples of natural woods to evaluate the capability to escape in case of fire and the fire safety requirements. Specific optical density, transmittance, thermal conductivity, and mass loss are main measured parameters. Also, comparisons between samples with paint and with no paint are carried out between the selected samples of woods.
 A. Irwin. Benjamin, "The challenge of smoke'', Fire safety journal, vol.7, pp. 3-7, 1984.
 Standard for the installation of air conditioning and ventilation systems, NFPA 90A, National Fire Protection Association. Quincy, MA, 1981.
 Haukur Ingason and Bror Persson, Swedish national testing and research institute (SP). ''Prediction of optical density using CFD''. Fire safety science-proceedings of sixth international symposium, pp.817-828, International association for fire safety science.
 Jin, T., Proc.4th joint panel meeting of the UJNR panel on fire research and safety, building research institute, Ministry of construction, Tokyo, February 1979.
 Dr W K Chow and Julian K M Kwok, 'Optical measurement of smoke from plastic building materials'', Construction and building materials, vol 3(2), Sep. 1989.
 K. Ch. Varada Rajulu, Anand Nandanwar, M. C. Kiran,'' Evaluation of smoke density on combustion of wood based panel products'', International journal of materials and chemistry, vol.2(5), pp.225-228, 2012.
 Julien Tissot, Martine Talbaut, Jerome Yon, Alexis Coppalle, and Alexandre Bescond,'' spectral study of the smoke optical density in non-flaming condition'', Procedia engineering, vol. 62, pp. 821-828, 2013.
 Peter Rantuch, Tomas Chrebet, and Karol Balog,'' comparison of optical smoke density of expanded polystyrene without and with cover components used in ETICS'', Advanced material research, vols. 724-725, pp.1625-1629, 2013.
 T. G. Lee, ''The smoke density chamber method for evaluation the potential smoke generation of building materials'', NBS Technical notes 757, U.S. Department of commerce, national bureau of standards, 1973.
 Standard for determination of optical density by a single-chamber test, ISO 5659-2, 2006.
 Butcher, E. G. and Parnell, A. C., ''Smoke control in fire safety design''. E. and F. N. Spon Ltd., London, 1979.
 David, S., and Y. Wang,'' Wood chemistry –Fundamental and application department of forestry'', NCHU.
 Envirograf® intumescent paint and varnishes for wood. Product 42. https://envirograf.com/product/intumescent-paint-and-varnishes-for-wood-etc/ (Accessed 2017-6-20).
 Dougal Drysdale, An Introduction to Fire Dynamics, Second Edition. John Wiley & Sons Ltd, Baffins Lane, Chichester, West Sussex PO191UD, England 1999.
 Pavan K. Sharma, CFD simulation of optical obscuration due to fire in enclosure, RT 21, 6-11 November, 2011, New Delhi, India, Paper ID# 308.