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ATP
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What it means
ATP (Accorde Transport Perishables) is the Agreement on the International Carriage of Perishable Foodstuffs and on the equipment to be used for such carriage.
It was drawn up the Inland Transport Committee of the UnIted Nations Economic Committee for Europe in 1970-7; the UK signed up to the agreement in 1979. Testing is carried out on behalf of the Department for Transport by Cambridge Refrigeration Technology, Schmitz Cargobull and Yorkshire Marine Containers.
The bodywork is put in a temperature-controlled ambient environment equivalent to 3DQC and fitted with temperature sensors at specified positions inside and outside the body. Then the test is carried out to measure the heat gain of the box.
The temperatures are expressed as K factors and the number of Watts per square metre per C. The lower the number, the more tnermally effi
, cient the bodywork.
For ATP the Kfactor for chilled bodywork is 0,7W/m2f2C, or 0.4W/m2PC for frozen. For accurate results tests should be carried out on the completed body rather than the insulation material so doors, seals and joints are included.