GB/T 36669.1-2018

This standard specifies the inspection requirements, methods, and evaluation criteria for in-service hydrogenation reactors used in petrochemical and refining industries. It is applied during periodic safety assessments to detect defects such as hydrogen-induced cracking, temper embrittlement, and corrosion in reactors operating under high-pressure hydrogen environments. The standard ensures operational safety and extends equipment life by guiding non-destructive testing, material degradation analysis, and structural integrity evaluations.