1 Scope
This document specifies a conversion method for the assessment of the peak spatial-average absorbed power density (psAPD) in the human head and body due to exposure to radio frequency (RF) electromagnetic
fields (EMF) from wireless communication devices, with a specified conversion uncertainty.
This conversion method is based on specific absorption rate (SAR) values and is specified with the objective to yield conservative and reproducible
absorbed power density values of the exposure for a significant majority of the population during the use
of hand-held, body-worn or any other RF transmitting communication devices that can
operate in close proximity to a human head or body. This conversion method applies
for devices that can feature single or multiple transmitters and/or antennas and can
be operated with their radiating structure(s) at distances up to 200 mm from a human
head or body.
The conversion method of this document can be employed to determine conformity with
applicable absorbed power density or epithelial power density limits, such as those defined in ICNIRP guidelines 2020
[3] and IEEE Std C95.1™-2019 [4], of different types of RF transmitting communication devices being used in close
proximity to the head and body. The assessment of psAPD is based on the conversion of the peak spatial-average specific absorption rate (psSAR) values assessed according to applicable international standards. The applicable
frequency range of the conversion method of this document is 6 GHz to 10 GHz.
NOTE Applicable international standards for the assessment of the psSAR are those accepted by the local regulatory body or specified in the CENELEC product standards. Such international standards include, e.g. IEC/IEEE 62209‑1528 and IEC 62209‑3[5] for measurement methods, and IEC/IEEE 62704‑1[6] and IEC/IEEE 62704‑4[7] for computational methods. The frequency range of [5], [6] and [7] is limited up to 6 GHz. While the applicability of the methods of [5] for the frequency range of this document may need further verification, the numerical standards [6] and [7].may be applied for frequencies up to 10 GHz.
The categories of RF transmitting communication devices covered in this document include
but are not limited to mobile telephones, radio transmitters in personal computers,
and desktop and laptop devices or devices embedded in garments, using single or multiple
transmitters and/or antennas, when operating within the frequency range indicated
above.
The conversion method of this document does not apply for EMF evaluation of exposure
from the devices or objects intended to be implanted in the body, such as active or
passive implanted medical devices.