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The ISO Headspace CO2 Biodegradation Test
1Shell Research and Technology Centre, Thornton, Chester, U.K.
Chemosphere
|April 1, 1997
Abstract:
Two published methods for evaluating the aerobic biodegradability of organic compounds by measuring inorganic carbon (CO2) production in sealed vessels, under a headspace of air were combined into one protocol. This was ring tested in 1995 by the International Organization for Standardization (ISO) using aniline and 1-octanol as the test substances. This paper describes the ISO method and discusses the results of the inter-laboratory calibration exercise in terms of the method's precision and performance.