ISO 13641-2:2003

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ISO 13641-2:2003 is a standard focusing on water quality and specifically, the determination of inhibition of gas production by anaerobic bacteria. It outlines a test method for low biomass concentrations, meaning it's designed for situations where the number of microorganisms being tested is relatively small. This standard is part of a broader series, with ISO 13641-1:2003 being the general test for determining gas production inhibition, and ISO 13641-2:2003 focusing on the specific conditions of low biomass.