Microbiological assay device

摘要

A device for detecting the presence of and determining the extent of biological contamination of a sample is disclosed. A sample vessel 14 is brought into sealed engagement with the device 10, and a liquid reagent, liquid hydrogen peroxide, is added to the sample during operation of the device. Catalayse contained in the contaminated sample breaks down the hydrogen peroxide releasing gaseous oxygen, the increase in gaseous pressure being detected by a pressure sensor 23.