| Abstract: | The experimental results for the mass specific extinction coefficient (σs) at λ=633 nm for flame generated smoke are summarized for seven studies involving 29 fuels. The measurements are for post‐flame smoke generated by overventilated burning. From an analysis of variance for the seven studies, it was found that between‐laboratory differences were the major source of variability. The estimated mean value of σs is 8.7 m2/g with an expanded uncertainty (95% confidence interval) of 1.1 m2/g. A major implication of this nearly universal value is that one can infer mass concentration of smoke by making light extinction measurements. Published in 2000 by John Wiley & Sons Ltd. |
