Glass Bubble Meter

Economical 10 or 100 mL These glass bubble flowmeters provide an economical way to monitor gas flow.

Made of borosilicate glass, these soap film bubble flowmeters are used in routine analytical laboratory gas chromatography to measure flow rate of the carrier gas. A soap bubble, formed in the bottom of the graduated tube, is pushed upward by gas from exit end of the chromatograph. Flow rate is…

…200 mm tube permits higher accuracy when used with transparent liquids, while the 100 mm tube should be used with cloudy samples containing impurities. The tubes also contain a bubble trap which prevents errors caused by air bubbles in the sample. Also included is a glass thermometer (0-50°C).

…end to float bubbles out of optical path. Large end takes 23.5 mm cover glass; small end takes 15.5 mm cover glass, which is used also in both ends of straight-bore tubes. 100 mm tubes hold approximately 6 mL; 200 mm tubes hold approximately 12 mL. Made of optically inactive glass Diameter…