A hydrometer or lactometer is an instrument used for measuring density or relative density of liquids based on the concept of buoyancy. They are typically calibrated and graduated with one or more scales such as specific gravity. A hydrometer usually consists of a sealed hollow glass tube with a wider bottom portion for buoyancy, a ballast such as lead or mercury for stability, and a narrow …
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Web28 dec. 2016 · Hydrometer: Same idea. Put the hydrometer in pure water at 60 degrees F, note the value measure with actual hydrometer (should be 1.000) mix up some table … WebDigitale hygrometer, digitale hygrometer Switch Controller 00%~99% RH Selectie van meerdere spanningen voor luchtkwaliteitsmeting voor champignonkas(12V) : Amazon.nl: … stars in the big dipper constellation
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