General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest
GB/T 31213.2-2014
Scope
This part of GB/T 31213 specifies the acoustic and ultrasonic testing methods for cast iron components. This part is applicable to the rapid detection of surface/near-surface crack defects and internal metallurgical defects of cast iron components (including cast iron drying cylinders, cast iron piping components, cast iron valves, cast iron structural parts, etc.).