American National Standard N538 Classification of Industrial Ionizing Radiation Gauging Devices

摘要

This American National Standard applies to the radiation safety aspects of gauging devices, commonly called gauges, which use sealed radioactive sources or x-ray tubes for the determination of control of thickness, density level, interface location, or qualitative or quantitative chemical composition. This standard establishes a system for classification of gauging devices based on performance specifications relating to radiation safety. In addition to specific tests for both use conditions and accident conditions, guidelines for other safety features and considerations are presented. This standard does not apply to the measurement performance of gauging devices.