Sulphate Reducing Bacteria (SRB) are anaerobic bacteria that obtain energy from the reducion of sulphates through sulphite to corrosive hydrogen sulphide.

SRB's do not like oxygen but can thrive in oxygen rich environments such as open evaporative cooling systems, by massing under biofilms and other corrosion by-products and by consuming sulphates present in grease/oil and other contaminants. Unlike oxygenated iron corrosion, this corrosion is not self-limiting and is difficult to eradicate completely.

Kittiwake SRB detection tubes provide a simple means of testing for the presence of this bacterial species. They help in diagnosis of particular corrosion and/or fouling problems and enable the determination of effective water treatment programs.

The table below gives a chart of recommended tests.
R = Recommended X = Suitable for use

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