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Bob Rasooli explains impact test requirement as per ASME B31.3 for process piping which is API 570 piping inspector and API SIFE (source inspection fixed equipment) exams questions.The video indicates how exemption evaluation should be conducted. The video describes that piping material grouped in 4 curves and exemption depends on the assigned curve, wall thickness, minimum design metal temperature. If material minimum design temperature and wall thickness combination fall below the curve, then the impact test is a mandatory requirement. If it falls on the curve or above the curve, then is exempted.
Link to API 570 Piping Inspector Online Training: www.inspection-for-industry.c...
Link to API SIFE Source Inspector Fixed Equipment Online Training: www.inspection-for-industry.c...