Africa, Middle East, Western Europe, Eastern Europe, South America, North America, Central America, Australia, Asia
For measuring the pressure of gases. Suitable for moderate pressures. Consists of a borosilicate glass U-tube, diameter 25mm and 50cm high, open at both ends. Has one rifed arm for easy connection to rubber tubing. Mounted on a wooden board xed on a metal stand. A metric scale is tted between the arms of the tube. It is recommended to use colored water for greater visibility in a lecture hall.
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