a device for measuring electric current by measuring the volume of gas produced at electrodes during electrolysis
measuring instrument consisting of a graduated glass tube for measuring volume changes in chemical reactions between gases
a chemical apparatus introduced by Priestley consisting of a raduated glass tube with one end closed
A device used for measuring the proportion of oxygen in samples of air. In its simplest configuration, it consists of a glass tube or bottle closed at one end, with a stopper at the other, often supported by a metal framework.
A eudiometer is a device for measuring the change in volume of a gas mixture following combustion or single or double replacement reaction. In one form the device is a graduated cylinder, closed at the top end with the bottom end immersed in water or mercury. The liquid traps a sample of gas in the cylinder and the graduation allows measuring the volume of the gas.