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Gannongs Respirometer

Manufactured in borosilicate glass with white enamel markings.

Product		Tolerance
Code	Description	± ml
WJ.793	Glass Parts only	1

Usage Guide

Used for demonstrating respiration of germinating seeds such as peas or beans, or small animals like woodlice. The tube is filled with KOH solution which absorbs the carbon dioxide produced. The graduations show the percentage of the air that has been used – the oxygen content of the atmosphere.