10ml 25ml 50ml 100ml Borosilicate Glass Burette with PTFE Stopcock

There is a glass piston at the lower end of the acid burette, which can be filled with acidic or oxidizing titrant, but cannot be filled with alkaline titrant, because the alkaline titrant can make the piston stick to the piston sleeve, making it difficult to rotate.

The calibration of the buret is the same as that of the volumetric flask. The water weighing method is used, that is, according to the different densities of pure water at different temperatures, the water quality at different scales of the buret is measured according to V=m/ ρ， Calculate the volume of pure water at a new temperature, which is the real volume of the buret at the new scale.