本指南提供了检查钴-60和铯-137远程治疗设备的建议程序，可识别和量化安全和辐射定义组件的故障或失调。本指南是ANSI N449-1974的配套文件，其中规定了远程治疗设备检查和维护的测试和建议频率。

This guideline provides suggested procedures for the inspection of cobalt-60 and cesium-137 Teletherapy equipment which may identify and quantify malfunctions or maladjustments of the safety and radiation defining components. This guideline is a companion document to ANSI N449-1974, which specifies tests and suggested frequencies for the inspection and maintenance of Teletherapy equipment.