How to check for leaks in burettes

How to check for leaks in burettes

[Glass Burette Tube,Retort Stand Burette,Burette Clamp,Pipette Burette,Burette 50ml]

Fill the cleaned burette with water. Place it on the burette holder and let it stand for two minutes, and observe whether there is any dripping. Then, rotate the piston 180°C and let it stand for two minutes to observe whether there is permanent dripping. If there is no leakage, the burette can be used.

If the acid burette leaks, you can deal with it as follows: remove the glass piston, dry the piston and piston groove with filter paper or gauze. Rub a small amount of petroleum jelly on the thick end of the piston with your fingers, and apply a thin layer along the circumference, especially near the hole, not too much. The petroleum jelly on the other end of the piston is preferably applied to the inner wall of the piston groove. After the application is finished, insert the phone plug into the groove, and the piston hole should be parallel to the burette when inserted. Then turn the piston, metal sleeve thermometer, marine thermometer, V-type thermometer, copper sleeve thermometer, digital pressure gauge, digital thermometer, piston pressure gauge, pressure gauge calibrator to observe whether the contact between the piston and the piston groove is transparent. , Whether the rotation is flexible. And check whether the piston leaks. If you do not meet the requirements, you need to apply new petroleum jelly.

If the alkaline burette leaks, the glass beads in the rubber tube can be rotated slightly, or slightly pushed up or down, and the water still leaks after the feint treatment. The glass beads or the rubber tube should be replaced.

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Post time: Oct-18-2021

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