{"tema_id":"967","string":"law of Bouguer-Lambert and Beer (A = lg(1\/\u03c4) = \u03b5bc)           #01848","created":"2022-12-19 09:13:33","code":null,"notes":[{"@type":"Scope note","@lang":"en-EN","@value":"1. Conditions for validity: A beam of parallel monochromatic radiation traverses, at normal incidence, an absorbing medium with planeparallel surfaces and which is homogeneous, isotropic, non-luminescent and non-scattering. 2. Adapted from ISO 6286, clause 3.3. "},{"@type":"Cataloger's note","@lang":"en-EN","@value":"reference: R135:2004 2.9 "},{"@type":"Cataloger's note","@lang":"en-EN","@value":"ID: 01848 "},{"@type":"Definition note","@lang":"en-EN","@value":"absorbance A is proportional to the optical pathlength b and the amount of substance concentration c "}]}