IEC 62232:2017
Determination of RF field strength, power density and SAR in the vicinity of radiocommunication base stations for the purpose of evaluating human exposure
IEC 62232:2017 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. This document:- considers intentionally radiating RBS which transmit on one or more antennas using one or more frequencies in the range 110 MHz to 100 GHz;- considers the impact of ambient sources on RF exposure at least in the 100 kHz to 300 GHz frequency range;- specifies the methods to be used for RF exposure evaluation for compliance assessment applications, namely:- product compliance - determination of compliance boundary information for an RBS product before it is placed on the market;- 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;- 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;- 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;- describes how surveyors, with a sufficient level of expertise, establish their specific evaluation procedures appropriate for their evaluation purpose;- 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 and- provides short descriptions of the informative example case studies given in the companion Technical Report IEC TR 62669]This second edition cancels and replaces the first edition published in 2011 and constitutes a technical revision.
IEC 62232:2017 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. This document:
- considers intentionally radiating RBS which transmit on one or more antennas using one or more frequencies in the range 110 MHz to 100 GHz;
- considers the impact of ambient sources on RF exposure at least in the 100 kHz to 300 GHz frequency range;
- specifies the methods to be used for RF exposure evaluation for compliance assessment applications, namely:
- product compliance - determination of compliance boundary information for an RBS product before it is placed on the market;
- 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;
- 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;
- 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;
- describes how surveyors, with a sufficient level of expertise, establish their specific evaluation procedures appropriate for their evaluation purpose;
- 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 and
- provides short descriptions of the informative example case studies given in the companion Technical Report IEC TR 62669]
This second edition cancels and replaces the first edition published in 2011 and constitutes a technical revision.
IEC 62232:2011 addresses the evaluation of RF field strength or specific absorption rate levels in the vicinity of non-broadcast RF radiocommunication sources (i.e. RBS) intentionally radiating in the frequency range 300 MHz to 6 GHz according to the scope (see Clause 1). It does not address the evaluation of current density which exposure guidelines often do not consider to be relevant when evaluating RF fields in the intended RBS operating frequency range. This standard defines how a suitably qualified surveyor shall select between the described evaluation methods in order to prepare specific or generic evaluation plans and how to validate their implementation. When using this standard to establish RBS compliance, the full set of limiting conditions needs to be defined. These may include for example limits on human exposure to RF fields; the likelihood that people may have access to a specific location; specific decision rules for interpretation of uncertainty. This standard does not define such limits or the associated requirements for a safety programme. Further, this standard recognises that national regulators (or the test client) may establish rules (termed "assessment schemes") on how to interpret uncertainty when establishing compliance. However, this standard does provide guidance on how to apply the described evaluation methods consistent with such rules. Additional guidance can be found in Technical Report IEC 62669 [54]) which includes a set of worked case studies giving practical examples of the application of this standard.
IEC 62232:2022 addresses the evaluation of RF field strength, power density and specific absorption rate (SAR) levels in the vicinity of base stations (BS), also called products or equipment under test (EUT), intentionally radiating in the radio frequency (RF) range 110 MHz to 300 GHz in accordance with the scope, see Clause 1. It does not address the evaluation of current density. RF exposure evaluation methods to be used for product compliance, product installation compliance and in-situ RF exposure assessments are specified in this document. Exposure limits are not specified in this document. The entity conducting RF exposure assessments refers to the set of exposure limits applicable where exposure takes place. Examples of applicable exposure limits considered in this document are provided in the Bibliography, for example ICNIRP-2020 [1], ICNIRP-1998 [2], IEEE Std C95.1?-2019 [3] and Safety Code 6 [4].
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