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Absorbance Index

Absorbance Index

Absorbance Index is measure of the attenuation (reduction in force, effect or value of something) caused by absorption of energy (light) per unit of distance that occurs in an electromagnetic wave of given wavelength propagating in a material medium (smoke) of given refractive index, which can be used to characterise the concentration of particulates in smoke or an aerosol.Note: The value of the absorption index is given by the relation K = bλ/4πn, where K is the absorption index, b is the absorption coefficient, λ is the wavelength in vacuum, and n is the refractive index of the absorptive material, i.e., the propagation medium

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In preparing this definition, we have drawn from various sources including Legislation, Codes, Standards and industry information, research and knowledge.  Like the english language, these definitions may subtly change from time to time. As such these definitions are provided solely on the basis that users will be responsible for making their own assessment of the definition and and are advised to verify all relevant representations, statements and information.