Shanghai Jingqi Direct-Reading BOD Meter BOD5-870, Shanghai Jingqi Instrument Co., Ltd. (CAT#: STEM-AI-0927-YJL)

Shanghai Jingqi Direct-Reading BOD Meter BOD5-870, model BOD5-870 is manufactured by Shanghai Jingqi Instrument Co., Ltd.
Inject the water sample or the pretreated water sample into the culture bottle, and put carbon dioxide absorber (NaOH) into the absorption cup at the mouth of the bottle, then seal the culture bottle and place it in a special biochemical incubator. When the sample to be tested is incubated at a constant temperature of 20±1°C for five days, the water sample in the bottle undergoes a biological oxidation reaction at a certain stirring speed. Organic matter is transformed into oxides of nitrogen, carbon and sulfur, and carbon dioxide gas is produced which is absorbed by sodium hydroxide. The oxygen in the upper space of the culture bottle continuously supplies the oxygen demand of the microorganisms in the water sample, and a pressure difference is generated in the culture bottle. By detecting the height of mercury in the glass tube, the BOD value of the water sample within the specified measurement period can be calculated.

Measuring range: 0～1000 mg/L
Accuracy: in line with the national standard "GB7488"
Display: direct reading
Batch capacity: 8 water samples
Cultivation temperature: 20℃±1℃
Dimensions: 400×270×350(mm)
Host weight: 6 kg
Host power consumption: <15W

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