For insulated bodies, Cambridge "K" Tests provide accurate heat leakage 
values and facilitate the selection of appropriate capacity 
refrigeration units. Design manufacturers and purchasers of 
insulated/refrigerated equipment can benefit from this test data.

This test is conducted in half the time of a full ATP so cannot fulfil 
the ATP thermal tolerance requirements. However it does provide 
meaningful results at a fraction of the cost.

Optionally, a test that starts off as a Cambridge K can be quickly 
determined as ATP suitable and if required the test may be continued 
until the thermal tolerances meet ATP requirements. Application for ATP 
certification can then be made.

It is emphasised that the Cambridge "K" test does not offer 
certification of refrigerated vehicles to ATP for use on the continent.