The invention provides a five-day
biochemical oxygen demand sampling
bottle, and belongs to the technical field of full-automatic analysis, the five-day
biochemical oxygen demand sampling
bottle specifically comprises a
bottle body and a
bottle cap, the bottle body is a dissolved
oxygen bottle, a rotor is placed in the bottle body, the rotor is matched with a magnetic stirring device for use, a
gas pipeline is nested on the
bottle cap, and the upper end of the
gas pipeline extends to the outer side of the
bottle cap; the lower end of the
gas pipeline extends to the bottle bottom, a self-locking pneumatic connector is arranged at the upper end of the gas pipeline, and the
tripping end of the self-locking pneumatic connector is an
aeration pipeline
insertion opening. A
honeycomb-shaped gas outlet head is arranged at the lower end of the gas pipeline, a first one-way valve is arranged in the middle of the gas pipeline and points to the inside of the bottle body, a through vent hole is formed in the bottle cap, and a second one-way valve is arranged in the vent hole and points to the outer side of the bottle body. According to the
processing scheme, the labor cost is remarkably reduced, the personal error is reduced, and a
solid foundation is laid for the accuracy and reliability of the BOD5 analysis result.