An easy to use test device for the testing of liquids comprising a primary chamber to receive an initial liquid sample and a multiplicity of secondary regions arranged to each receive an aliquot of the initial liquid sample from the primary chamber, wherein the test device is movable in use between two positions, a first position and a second position. The device is especially suitable for carrying out on-site microbial assays with a minimal requirement for user expertise and additional apparatus. The invention also provides related methods and apparatus.
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