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A calcium carbide method for the quick determination of moisture. A pressure gauge is calibrated to give direct values of moisture content percent of soil samples.
SM-1000 Speedy moisture tester is a portable system for quickly and accurately measuring the moisture content in virtually any powder, mixes and pastes of soil, sand, clay, or other granular material.
The tester is supplied complete with carrying case, steel ball, pocket balance, sample container, measuring spoon, cleaning cloth and brushes.
Working principle
Moisture measurements are made by mixing a weighed sample of the material with a calcium carbide reagent in the sealed pressure vessel. The reagent reacts chemically with water in the sample, producing acetylene gas that in turn increases the pressure within the vessel. The pressure increase in the vessel is proportional to the amount of water in the sample; the moisture content can be read directly from the calibrated pressure gauge.
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