NEN-ISO 9439:1993 ISO 9439-1990 水質(zhì).水介質(zhì)中有機化合物"最終"有氧生物降解能力的評價.二氧化碳釋放量分析法
Water quality. Evaluation in an aqueous medium of the "ultimate" aerobic biodegradability of organic compounds. Method by analysis of released carbon dioxide (ISO 9439:1990)