1.1本标准提供了选择和使用便携式仪器的建议，该仪器对接近自然背景的辐射水平作出响应。这些仪器用于检测残余放射性的存在，其等于或低于待打捞或再利用组件的第三监管控制释放标准，或在去污和/或退役结束时剩余的表面。

1.1 This standard provides recommendations on the selection and use of portable instrumentation that is responsive to levels of radiation that are close to natural background. These instruments are employed to detect the presence of residual radioactivity that is at, or below, the criteria for release from firther regulatory control of a component to be salvaged or reused, or a surface remaining at the conclusion of decontamination and/or decommissioning.