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.