Smoke density of wood based panel materials like General purpose plywood, Marine Plywood(BWP grade), Medium Density Fibre Board (MDF), Bamboo Mat Board (BMB), Pre-laminated Particle 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 volume of smoke. It was observed that pre-laminated particle board and general purpose plywood with 22.20% &22.47% of smoke accumulation area respectively resulted lower values as compared to other panel products such as marine plywood (BWP grade), MDF, BMB etc. A uniform rate of smoke build-up was recorded. This study provides the basis for predicting the smoke production rate, time to ignite (TTI), and Toxicity index which can be developed by combustion of the wood product.
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