#laboratory apparatus
- Aerometer — A physical instrument or laboratory apparatus used to measure the density, specific weight, or refractive index of air and other gases; a specialized hydrometer designed for compressible fluids, often operating based on hydrostatic buoyancy laws or by determining the mass of a fixed volume of gas.
- Amylometer — A laboratory instrument designed for the quantitative determination or percentage measurement of starch within a solution, plant product, or cereal mass. The device usually operates on densimetric, optical, or refractometric principles, being a structural tool utilized in older analytical laboratories or starch factories for quick raw material control.
- Azotometer — A laboratory apparatus used for the quantitative determination of the volume of nitrogen released from a chemical reaction, or for measuring the concentration of nitrogenous compounds within a complex substance (such as soil or fertilizers); it typically operates on eudiometric or volumetric principles.
- Azotometer — A laboratory apparatus or precision instrument used for the quantitative determination of the volume of nitrogen released during a chemical reaction or organic decomposition process. This structural device, typically made of borosilicate glass and equipped with a graduated scale, is essential in volumetric elemental analyses for measuring the purity of gaseous compounds.