The most basic configuration of a bubble flowmeter is a calibrated tube, a stopwatch, and a good eye. The bubble is timed as it moves up the calibrated tube between two markings. Flow tubes are graduated as follows:
•10 mL tube in 1 mL increments
•25 mL tube in 5 mL increments
•50 mL tube in 10 mL increments
•100 mL tube in 20 mL incrementsIncludes glass flow tube with two magnetic clamps, a short piece of Tygon tubing and a squeeze bulb. Stand not included.
Synonyms: FLOW METER 100CC
Application: Bubble flowmeter may be used to manually control the flow at the system outlet during analysis of perfluorobutane (PFB) in the exhaled rat air using respiration-metabolism chamber system and a GC-MS method.