Determination of RF field strength and SAR in the vicinity of radiocommunication base stations for the purpose of evaluating human exposure
|Publication Date:||1 August 2017|
|ICS Code (Radiation protection):||13.280|
|ICS Code (Radiation measurements):||17.240|
This document provides methods for the determination of radio-frequency (RF) field strength and specific absorption rate (SAR) in the vicinity of radiocommunication base stations (RBS) for the purpose of evaluating human exposure.
a) considers intentionally radiating RBS which transmit on one or more antennas using one or more frequencies in the range 110 MHz to 100 GHz;
b) considers the impact of ambient sources on RF exposure at least in the 100 kHz to 300 GHz frequency range;
c) specifies the methods to be used for RF exposure evaluation for compliance assessment applications, namely:
1) product compliance - determination of compliance boundary information for an RBS product before it is placed on the market;
2) product installation compliance - determination of the total RF exposure levels in accessible areas from an RBS product and other relevant sources before the product is put into service;
3) in-situ RF exposure assessment - measurement of in-situ RF exposure levels in the vicinity of an RBS installation after the product has been taken into operation;
d) describes several RF field strength and SAR measurement and computation methodologies with guidance on their applicability to address both the in-situ evaluation of installed RBS and laboratory-based evaluations;
e) describes how surveyors, with a sufficient level of expertise, establish their specific evaluation procedures appropriate for their evaluation purpose;
f) provides guidance on how to report, interpret and compare results from different evaluation methodologies and, where the evaluation purpose requires it, determine a justified decision against a limit value;
g) provides short descriptions of the informative example case studies given in the companion Technical Report IEC TR 62669 .