Provides guidance on the following: a) general aspects of corrosion damage test methods; b) methods of measurement of corrosion damage; c) consideration of test methods; d) relevance of corrosion damage data to hazard assessment. The structure of this second edition remains essentially the same as the first edition with the following additions: - Information on fire scenarios and fire models has been added along with an update on the latest advances in the analysis of the fire effluent. - The general classification of fires from ISO TR 9122-1 has been added. - A new clause on the general aspects of the corrosivity of fire effluent which describes the types of corrosion damage effects and the factors affecting corrosivity. - A new clause on the principles of corrosion damage measurement has been added describing the assessment of the corrosive potential and the consideration of the corrosivity test methods. - A new table describing a summary of corrosion test methods. - A new flowchart detailing the evaluation and consideration of corrosion damage test methods. - The bibliography has been expanded. Has the status of a basic safety publication in accordance with IEC guide 104.