Introduction to RF Radiation Safety / 9 / 9.2 / 9.2.3

9.2.3 Assessment And Compliance Standards

These standards and recommendations explain how exposure is to be measured, calculated, modeled, combined, and compared with applicable limits. They do not normally establish the biological exposure limits themselves; instead, they provide recognized engineering routes for demonstrating compliance.

9.2.3.1 General And Workplace Assessment

• AS/NZS 2772.2:2016—Radiofrequency Fields, Part 2: Principles and Methods of Measurement and Computation—3 kHz to 300 GHz. This Australian/New Zealand standard provides principles and methods for assessing RF fields by measurement and computation. It addresses electric- and magnetic-field strength, power density, specific absorption rate, survey planning, instrumentation, uncertainty, spatial and time averaging, and multiple-source exposure. It is widely used by RF safety practitioners for workplace surveys, site compliance assessments, and technical investigations. The standard supplies assessment methods rather than exposure limits and is therefore normally applied with ARPANSA RPS S-1 in Australia, NZS 2772.1 in New Zealand, or another legally applicable exposure framework.

• IEEE Std C95.3-2021—IEEE Recommended Practice for Measurements and Computations of Electric, Magnetic, and Electromagnetic Fields with Respect to Human Exposure to Such Fields, 0 Hz to 300 GHz. IEEE C95.3 describes best practices for developing, validating, and applying measurement and computational methods used in human-exposure assessments. It replaced IEEE C95.3-2002 and IEEE C95.3.1-2010 and is harmonized with IEEE C95.1-2019. Rather than prescribing detailed methods for every source, it provides professional guidance and points users to appropriate specialized standards. It is particularly useful when planning critical surveys or assessments that combine measurements, analytical calculations, and numerical modeling.

• EN 50499:2019—Procedure for the Assessment of the Exposure of Workers to Electromagnetic Fields. EN 50499 provides a general procedure for assessing workplace exposure under the European occupational EMF framework. It allows employers to begin with a relatively simple screening assessment and to progress to detailed measurement, calculation, or modeling only where necessary. The standard identifies equipment and situations that are normally compliant, addresses simultaneous exposure and workers at particular risk, and directs users to product-specific or basic standards for specialized assessments. It is an important practical link between Directive 2013/35/EU and workplace implementation.

• IEC 62311:2019—Assessment of Electronic and Electrical Equipment Related to Human Exposure Restrictions for Electromagnetic Fields (0 Hz to 300 GHz). IEC 62311 is the generic equipment-assessment standard used where no dedicated product or product-family exposure standard applies. It covers intentional and unintentional radiators and permits compliance to be demonstrated by measurement, calculation, numerical modeling, technical analysis, or a combination of methods. The standard addresses non-uniform fields, multiple frequencies, combined exposure, uncertainty, and foreseeable operating conditions. Manufacturers, test laboratories, and conformity-assessment bodies commonly use it for novel, hybrid, industrial, and consumer products that fall outside a more specialized standard.

• IEC 62479:2010—Assessment of the Compliance of Low-Power Electronic and Electrical Equipment with the Basic Restrictions Related to Human Exposure to Electromagnetic Fields (10 MHz to 300 GHz). IEC 62479 provides simplified assessment and exclusion methods for low-power equipment. Where the available power, source characteristics, or other conservative criteria demonstrate that the basic restrictions cannot be exceeded, detailed SAR or power-density testing is unnecessary. The standard is therefore widely used as an efficient first-stage conformity-assessment route for low-power radios, wireless modules, sensors, and similar devices. Failure to satisfy an exclusion criterion does not indicate that a product is unsafe; it means that compliance must be demonstrated using IEC 62311 or an applicable product-specific standard.

9.2.3.2 Base Stations And Telecommunications Installations

• IEC 62232:2025—Determination of RF Field Strength, Power Density and SAR in the Vicinity of Base Stations for the Purpose of Evaluating Human Exposure. IEC 62232 is the principal international engineering standard for assessing exposure around radiocommunication base stations. It covers product compliance, installation compliance, and in-situ assessment using measurements, analytical calculations, and numerical modeling. The standard addresses ambient sources, combined exposure, uncertainty, antenna patterns, operating configurations, and modern time-varying beam-steering systems such as massive-MIMO base stations. It is widely used by cellular manufacturers, network operators, regulators, consultants, and accredited laboratories. The standard determines how exposure is assessed; the applicable exposure limits are supplied by ICNIRP, IEEE, national regulation, or another recognized framework.

• Recommendation ITU-T K.52 (08/2024)—Guidance on Complying with Limits for Human Exposure to Electromagnetic Fields. ITU-T K.52 provides a practical, graduated procedure for assessing telecommunications equipment and installations. It classifies sources and installations according to power, antenna characteristics, and accessibility and helps determine whether a facility is inherently compliant, normally compliant, or requires more detailed evaluation. It includes simplified calculations, treatment of multiple sources and frequencies, measurement guidance, uncertainty considerations, and the establishment of occupational and exceedance zones. Its relative simplicity and availability have made it particularly useful to telecommunications administrations and operators worldwide, including countries without extensive national assessment procedures.

9.2.3.3 Wireless Devices Used Near The Body

• IEC/IEEE 62209-1528:2020—Measurement Procedure for the Assessment of Specific Absorption Rate of Human Exposure to Radio Frequency Fields from Hand-Held and Body-Mounted Wireless Communication Devices. This dual-logo IEC/IEEE standard is the principal international SAR measurement procedure for wireless devices used close to the head or body over the frequency range from 4 MHz to 10 GHz. It specifies anthropomorphic phantoms, tissue-equivalent liquids, probe systems, device positions, system validation, measurement uncertainty, and procedures for multi-band and body-worn operation. It is central to the certification of mobile telephones, tablets, radios, and other portable transmitters. Regulators and laboratories may supplement it with jurisdiction-specific test positions, averaging rules, and equipment-authorization procedures.

• IEC/IEEE 63195-1:2022—Assessment of Power Density of Human Exposure to Radio Frequency Fields from Wireless Devices in Close Proximity to the Head and Body, Part 1: Measurement Procedure. This standard specifies measurement procedures for evaluating incident power density from wireless devices operating close to the body between 6 GHz and 300 GHz. It addresses scanning systems, probe characteristics, spatial averaging, evaluation surfaces, test configurations, validation, and uncertainty. It is particularly relevant to millimeter-wave devices, for which energy is absorbed predominantly in superficial tissues. Under current ICNIRP and IEEE frameworks, power density is generally the principal conformity metric above 6 GHz, although the applicable regulatory requirements must be checked, especially in the 6-to-10-GHz overlap with SAR procedures.

• IEC/IEEE 63195-2:2022—Assessment of Power Density of Human Exposure to Radio Frequency Fields from Wireless Devices in Close Proximity to the Head and Body, Part 2: Computational Procedure. Part 2 complements the measurement standard by specifying computational methods for evaluating power density from close-proximity devices operating between 6 GHz and 300 GHz. It addresses numerical models, source representation, evaluation surfaces, spatial averaging, validation, convergence, and uncertainty. Computational assessment can be particularly valuable during product design, for complex antenna arrays, and where measurement access is difficult. Results must be interpreted against the applicable exposure limits and any additional requirements imposed by the relevant equipment-authorization regime.