P401.011 CONSTANT VOLUME AIR THERMOMETER
Description
Consists of a polished teakwood stand approx. 750mm height fitted with a wooden scale reading from 0 to 60cm x 1mm and supporting an adjustable mercury reservoir by a metal rod. A detachable air thermometer bulb about 70mm dia, connected via three way stopcock to mercury tube with zero index lased inside its upper end. A metal vessel surrounding the bulb supported by detachable metal self mounted on insulating asbestos screen. Mounted on a teakwood stand with a deep tray which serves to catch any mercury which has accidentally spilled from the reservoir. Supplied complete with one meter of rubber pressure tubing 10mm O.D. & 5mm bore for connecting the reservoir to the bulb (about 750gm of mercury is required) without mercury.
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