Clause 3 contains explanations of some of the basic terms employed in the development and application of the concept of fire resistance. Clause 4 discusses the significance of fire resistance. Clause 7 covers the development and application of calculation methods which are associated with the results obtained from fire resistance tests. Clause 8 gives a survey of the methods presently available for structural fire design, followed by an enumeration of the precepts that appear to be applicable to their use. Clause 9 deals in more detail with the development and application of calculation methods which are directly related to an analytical determination of fire resistance.