ABSTRACT
The fire test is very expensive both in terms of the specimen preparation and the cost of the actual test. The data used in the prescriptive approach are obtained by interpreting the results from the standard fire test. The basic principle of the standard fire test which should perhaps, be known as the standard furnace test, is that a structural element is loaded so as to produce the same stresses in the element that would be induced in that element when in place in the structure of which it is considered a representative part. The standard furnace test is regulated on an international basis by ISO 834 which has been subject to amendments since 1975. As test furnaces are restricted in size, it is generally impossible to test large elements of construction and thus 'representative' specimens are tested. The availability or design of furnaces can also restrict the type of test that can be carried out.
