Evaluation of Smoke Density on Combustion of Wood Based Panel Products

Smo ke density of wood based panel materials like General purpose plywood, Marine Plywood(BWP g rade), Medium Density Fibre Board (M DF), Bamboo Mat Board (BM B), Pre -laminated Part icle Board (PPB) were measured using chamber method (ASTM D 2843-70). The specimens are tested inside closed chamber and readings of light transmission were taken at 5-seconds interval. Measurements were made in terms of loss of light transmittance through an accumulated volu me of s moke. It was observed that pre-laminated particle board and general purpose plywood with 22.20% &22.47% of smo ke accumu lation area respectively resulted lower values as compared to other panel products such as marine plywood (BWP grade), MDF, BM B etc. A uniform rate of s moke build-up was recorded. Th is study provides the basis for predicting the smoke production rate, time to ignite (TTI), and To xicity index which can be developed by combustion of the wood product.