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See Chinese contents: GBZ 117-2022 GBZ 117-2022: Standard for radiological protection in industrial radiography
This Standard specifies the radiological protection requirements for X-ray and ?-ray defect detection. This Standard is applicable to defect detection using X-ray radiography facilities and ?-ray radiography facilities of 600 kV and below (including stationary defect detectors and mobile defect detectors). Industrial CT defect detection and non-destructive testing within the same radiation source range for non-defect detection purposes may take this as a reference. This Standard is not applicable to industrial defect detection performed by accelerators and neutron defect detectors.
