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This document specifies a rapid method for assessing solid samples in an aerobic suspension, by determining the inhibition of dehydrogenase activity of Arthrobacter globiformis using the redox dye resazurin. The responsible national standardization committee is Subcommittee NA 119-01-02-04 UA "Biologische Verfahren" ("Biological methods") at DIN Standards Committee Water Practice (NAW).
This document replaces DIN EN ISO 18187:2018-07 .