人体暴露在频率范围为0 GHz～300 GHz的各种设备中短程装置(SRDs)产生的电磁场中的评估.第1部分:电子产品监测、无线电频率鉴定和类似系统用装置产生的电磁场

[中文适用范围]： IEC62369 的这一部分介绍了评估人体暴露于电子商品防盗 (EAS)、射频识别 (RFID) 和类似应用中使用的设备的电磁场 (EMF) 的程序。它采用分阶段的方法来促进合规性评估。第一阶段（阶段 1）是针对适当的导出参考值的简单测量。第二阶段是一系列更复杂的测量或计算，并结合分析技术。第三阶段需要详细的建模和分析，以便与基本限制进行比较。在评估任何设备时，可以使用最适合暴露情况的方法。在编写本国际标准时，电子商品防盗、射频识别和类似系统通常不会在低于 1 Hz 或高于 10 GHz 的频率下运行。 EMF 暴露指南和标准可以涵盖更广泛的频率范围，因此对所需范围的澄清作为评估程序的一部分包括在内。本文档涵盖的器件通常具有不均匀的场模式。通常，这些设备的场强随着距离的增加而迅速降低，并且在电场和磁场之间的关系不恒定的近场条件下工作。附录 A 详细介绍了这一点以及不同设备类型的典型暴露条件。附录 B 包含有助于对暴露情况进行数值建模的综合信息。它包括均质模型和解剖模型以及组织的电特性。本国际标准不包括限制。限值可以从单独发布的人体暴露指南中获得。不同地区可能适用不同的准则和限值。与指南相关联的通常是更宽频率范围和多个曝光源的求和方法。应使用这些。附件 C 中包含了对多个来源进行求和的简化方法。必须谨慎使用该方法，因为它过于简单化并且会高估暴露；然而，当不同评价的结果采用不兼容的不同计量单位时，它作为指南是有用的。不同国家和地区对于评估中的不确定性处理有不同的指导方针。附录 D 提供了两种最常用方法的信息。本标准末尾的参考书目提供了电磁场测量的一般信息以及有用的信息。参见[1]、[2]、[3]、[4]、[5]、[6]1)。类似的国家或国际标准可以作为替代标准。 [外文原描述]： IEC 62369-1:2008 presents procedures for the evaluation of human exposure to electromagnetic fields (EMFs) from devices used in electronic article surveillance (EAS), radio frequency identification (RFID) and similar applications. It adopts a staged approach to facilitate compliance assessment. The first stage (Stage 1) is a simple measurement against the appropriate derived reference values. Stage 2 is a more complex series of measurements or calculations, coupled with analysis techniques. Stage 3 requires detailed modelling and analysis for comparison with the basic restrictions. When assessing any device, the most appropriate methodfor the exposure situation may be used. At the time of writing this International Standard, electronic article surveillance, radio frequency identification and similar systems do not normally operate at frequencies below 1 Hz or above 10 GHz. EMF exposure guidelines and standards can cover a wider range of frequencies, so clarification on the required range is included as part of the evaluation procedures. The devices covered by this document normally have non-uniform field patterns. Often these devices have a very rapid reduction of field strength with distance and operate under near-field conditions where the relationship between electric and magnetic fields is not constant. This, together with typical exposure conditions for different device types, is detailed in Annex A. Annex B contains comprehensive information to assist with numerical modelling of the exposure situation. It includes both homogeneous and anatomical models as well as the electrical properties of tissue. IEC 62369-1:2008 does not include limits. Limits can be obtained from separately published human exposure guidelines. Different guidelines and limit values may apply in different regions. Linked into the guidelines are usually methods for summation across wider frequency ranges and for multiple exposure sources. These shall be used. A simplified method for summation of multiple sources is contained in Annex C. This has to be used with care as it is simplistic and will overestimate the exposure; however it is useful as a guide, when the results of different evaluations are in different units of measure which are not compatible. Different countries and regions have different guidelines for handling the uncertainties from the evaluation. Annex D provides information on the two most common methods.