This text shows how safety assurance is actually performed in industry. It moves from hazard identification to frequency and probability analysis and, finally, to consequence analysis. Considerable attention is given to HAZOP techniques, and an extensive discussion of failure-mode-effects analysis (FMEA). As an aid to the student, example problems are provided at the end of the book. Though written as an undergraduate textbook, the publication should be useful to all engineers involved in safety, particularly those who have not had formal training in the techniques of safety analysis. The basic techniques described should also be of interest to anyone concerned with safety in the process and related industries.