Welcome to our website...


Leeds Test Objects Ltd is a manufacturer of medical X-ray test objects, or phantoms. We are based in Boroughbridge, North Yorkshire in England.

These objects, the first of which was manufactured in 1955, have become world renowned as a clinical standard for establishing the correct operating performance of X-ray machines following their adoption for clinical use by the U.K. Health Service (NHS) in 1973 and as a testing protocol by the U.K. Hospital Physicists' Association (I.P.E.M.) in 1979.

To find out more about our range of test objects, please click on the 'products' menu at the top of the page.

Our many customers worldwide include radiographers, medical physics departments and major multi-national organisations.

We have a network of distributors. To find out from where you can buy your Leeds Test Objects, please click on the 'distributors' menu at the top of the page.


For informaton and supply within the UK & Eire,
please contact our distributor:

Southern Scientific Ltd
tel: 01903 604000


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