BOD5测定仪

2023-01-16 10:15:42

BOD5测定仪根据压差法丈量原理设计而成，模拟自然界中有机物的生物降解过程，在密封培养瓶内，培养瓶上方空气中的氧气不断补充样品中被有机物分解消耗的溶解氧。通过除去有机物降解过程中发生的CO2，使培养瓶中的空气压力发生变化，通过监测培养瓶中空气压力的变化，计算出样品的生化需氧量BOD值。

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