1.13.7. EFFICIENCY OF APPLICATION OF ACOUSTIC-EMISSION TESTING METHOD FOR RISK EVALUATION DURING EXPERT EXAMINATION OF INDUSTRIAL SAFETY OF EQUIPMENT OF PETROCHEMICAL PRODUCTION FACILITIES

摘要

Under [1], the main task of risk analysis consists in provision of answers to the following three main questions: - What bad things can occur? (Identifications of hazards); - How often it can occur? (Analysis of frequency); - What are possible consequences? (Analysis of consequences). From the point of view of a specialist in non-destructive testing (NDT), purpose of examination consists in detection and identification of defects in metal and welded joints at a hazardous production unit (HPU). In opinion of an expert on industrial safety (IS), performance of examination is aimed to evaluation of the HPU operability and calculation of its remaining service life. Therefore, risk analysis from the point of view of NDT specialist and IS expert can be related with solution of first two from three above indicated problems, and namely: (1) "identification of hazards", i.e. detection of hazardous defects and identification of their type; (2) "analysis of frequency", i.e. probability analysis of the frequency of detection of hazardous defects.