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GSC-8 XXX
DOCUMENT FOR:
SOURCE: IEEE and IEC Decision X
TITLE: IEEE SCC34 and IEC TC106 Activities and Harmonization
Discussion X
AGENDA ITEM: 6.2
Information X
IEEE SCC 34 and IEC TC 106 Update:
Progress in SAR/MPE Requirements for
Evaluation of Wireless Devices
Kathy MacLean
Chair, WG4 IEC TC 106; Vice-Chair, IEEE SCC34
President, APREL Laboratories
Member of the Board, Spectrum Sciences Institute
e-mail kathym@aprel.com
April 29, 2003 1
Contents
• Current Climate
• Need for Harmonized Standards and Reliable SAR Compliance
Measurements
• Technology Status
• RF Exposure and Measurement Standards Developments
• Status of Standards and Harmonization Efforts
IEEE SCC 34
• Overview and structure
• SC2/p1528
IEC TC 106
• Overview and structure
• TC 106/PT 62209
• Harmonization – IEEE and IEC
• Harmonization – IEC and CENELEC
• Implementation/Approval Issues
• Harmonization: Desired Outcome for GSC
31 August 2012 GSC-8, OTTAWA Slide 2
Need for Harmonized Standards and Reliable
SAR Compliance Measurements
High Interest Area of RF Exposure started at RAST-4 (TSACC
submission)
public pressure in relation to health effects of wireless devices
waxes and wanes – but continues
precautionary principle and similar schemes – effect on
measurement approach
increasing establishment and enforcement of varied RF safety
limits by regulatory bodies
increasing number of testing laboratories involved in SAR
measurements worldwide
increasing number of SAR auditing laboratories (formal and
"voluntary") – notified bodies, TCB’s, CAB’s, etc.
recommendations/commitments in place to publish SAR values
of wireless devices ("consumer wants to make choices knowing
which device causes more SAR")
opinion that documented simple and reliable SAR data could be
used in epidemiological studies
31 August 2012 GSC-8, OTTAWA Slide 3
RF Exposure and Measurement Standards
Developments
• IEEE (USA & International)
• ICNRP, NCRP...
• IEC (International)
• CENELEC (Europe)
• HC, IC, RABC, Spectrum Sciences Institute (Canada)
• Australia/New Zealand Standards(Australia)
• MIC (Korea)
• ARIB (Japan)
• other “derivative” country standards (China, Russia,
Mexico…)
31 August 2012 GSC-8, OTTAWA Slide 5
IEEE SCC 34
• Work started in 1995
• Executive
Chair, Ronald Petersen
Secretary, Dr. John Osepchuk
Vice-Chair, Kathy MacLean
• Subcommittees
SC1 – (Varanelli), small boat radar
SC2 – (Bassen), certification of wireless handsets
SC3 – (Tell), evaluation of RF protective clothing
Possibility of additional SC’s if needed – input solicited
• Next meeting concurrent with Bioelectromagnetics Society
meeting in Hawaii, 2003
31 August 2012 GSC-8, OTTAWA Slide 6
IEEE SCC 34 SC2 Work on SAR Estimation
• Work started in March 1997
• Two working groups (membership from Europe, Asia, North
America)
WG 1 (Bassen) Experimental Measurements(> 65
members)
• Recommended Practice for Determining the Spatial-
Peak Specific Absorption Rate (SAR) in the Human
Body Due to Wireless Communications Devices:
Experimental Techniques
WG 2 (Beard) Computational Methods
• P 1529 Recommended Practice for Determining the
Spatial-Peak Specific Absorption Rate (SAR) in the
Human Body Due to Wireless Communications Devices:
Computational Techniques
• Objective is to define both measurement and computations
31 August 2012 GSC-8, OTTAWA Slide 7
IEEE SCC 34 SC2 Work on SAR Estimation
• Priority was given to WG 1
Define measurement protocols
Define methods of measurement validation
Define interpretation of SAR data
priority to define characteristics of components used,
i.e. probes, phantoms, etc.
Initial scope limited to handsets (head)
First ballot 25/26 approval; second ballot May 2003
Standard approval expected June 2003
31 August 2012 GSC-8, OTTAWA Slide 8
IEC TC 106
• Mandate for measurement methodologies only: completely
limit-independent
• Work started in November, 2000 in Montreal
• Executive:
Chair Ronald Petersen (USA)
Vice-Chair Herman Leenders (Netherlands)
Secretary Michel Bourdages (Canada)
• 5 Working Groups, 7 Project Teams
• Two projects now entering CDV stage
• “DC –300 GHz Two standards entering CDV (voting) proces
Demarcation between low frequency and high frequency is somewhat
arbitrary (0 to approximately 100kHz and 100 kHz to 300 GHz)
Subjects which fall into both ranges will usually be treated in one
group (eg. electronic article surveillance responsibility of WG4, high
frequency)
31 August 2012 GSC-8, OTTAWA Slide 9
IEC TC 106
• WG1 (Deschamps) - Measurement and Calculation Methods for
Low Frequency (0 to approx. 100 kHz electric and magnetic fields
and induced currents –
WG1 will produce Basic Standards.
• WG2 (Roux) - Characterization of Low Frequency Electric and
Magnetic Fields Produced by Specific Source
WG2 will produce Product Family Standards.
• WG3 (Baron) - Measurement and Calculation Methods for High
Frequency (approx. 100 kHz to 300 GHz) Electromagnetic Fields
and SAR
WG3 will produce Basic Standards.
• WG4 (MacLean) - Characterization of High Frequency
Electromagnetic Fields and SAR by Specific Sources
WG4 will produce Product Family Standards.
• WG5 (Verholt) - Generic Application of Test Instrumentation and
Measurement (Guidelines for product committees)
31 August 2012 GSC-8, OTTAWA Slide 10
IEC TC 106/PT 62209 Work on SAR
Estimation
• Measurement standard
• Work started in November, 2000 in Montreal
• many common members with IEEE + others
• Chair M. Meier, Motorola Germany
• PT 62209 Part 1 scope parallel to IEEE p1528
• IEEE SAM phantom adopted (not CENELEC)
• 1st part entering CDV stage (voting)
• Work begun on Part 2 in 2002 – includes accessories, body
mount, handhelds, cameras, frequency extension (30MHz
– 6 GHz), etc. (not part of the Part 1 draft for vote).
• Part 2 is covered by the Category “D” liaison with IEEE
SCC34
31 August 2012 GSC-8, OTTAWA Slide 11
Harmonization – IEEE AND IEC
• IEEE SCC 34 and IEC TC 106 have substantial common
membership at the working group and project team level
• IEC TC 106 PT 62209/IEEE p1528 harmonization has been a
priority
• Category “D” liaison established for new work between IEC TC
106 PT 62209 and IEEE SCC 34
A “Category D” liaison involves organizations that can make an
effective technical contribution and participate at the working
group level or specific project level of the IEC technical
committees or subcommittees. Obvious goals are standards
harmonization, avoidance of divergence of standards, and
minimizing duplication of effort. The work of IEC TC106 and IEEE
Standards Coordinating Committee 34 (SCC34) is an example.
31 August 2012 GSC-8, OTTAWA Slide 12
Harmonization – CENELEC AND IEC
• CENELEC TC 211 was renamed to TC 106x to reflect the
migration of technical work related to measurements to
IEC TC 106
• Transition plans from CLC to IEC in place now or in
development
• CLC TC106x standards all being produced in 2 parts
(methods and limits) to facilitate transitions
• For example, IEC PT 62209, once voted, will be parallel
voted in CENELEC and will replace the prEN (for
measurement, but not for limits)
• Majority of other countries’ standards are derivatives or
combinations of CLC, IEC, FCC Supp. C, and/or IEEE –
convergence is expected
31 August 2012 GSC-8, OTTAWA Slide 13
Implementation/Approval Issues
• RF exposure requirements have changed the game for
approvals of devices
• Integration - own approval ID
• Intended use is key test for how to proceed
SAR (reactive near field) vs. MPE
head, hand, body, bystander
voice/data
combinations of usage/configuration
New devices/technologies
• Duty cycles, accessories
• Exclusions, apparent exclusions, and erring on the side
of caution
31 August 2012 GSC-8, OTTAWA Slide 14
Implementation/Approval Issues
• Devices are getting more complex and smaller
wireless phones, cordless phones, pagers etc.
• Body-worn operating configurations are getting popular
wireless phones, cordless phones, 2-way radios etc
Product cycle is getting much shorter - more devices
• Multiple sources transmitting concurrently
• Wireless modems, hand-held organizers, POS - Internet
Access
• Bluetooth, 802.11 a/b/g/… and other
modules/”modules” - more issues – host dependence
• need to implement RF exposure procedures for
approving bodies to review and approve equipment
requiring RF exposure evaluation
31 August 2012 GSC-8, OTTAWA Slide 15
Harmonization: Desired Outcome for
GSC
• The majority of other countries’ standards are already
derivatives or combinations of IEC and/or IEEE (plus FCC,
CLC)
• Scientific and engineering research into measurement
methodologies, particularly for new technologies, continues
to be very important
• IEC TC 106 and and IEEE SCC34 consist of international
experts in these fields from the majority of SDO’s
• Harmonization of RF safety measurement standards is
highly desirable, particularly in light of the rapid
development of new wireless technologies
• GSC should encourage SDO’s and regulators to
consistently globally harmonize their measurement
methodologies for human exposure to RF
31 August 2012 GSC-8, OTTAWA Slide 16
For more information:
• www.iec.ch
• http://grouper.ieee.org/scc34/
• www.aprel.com
• www.spectrum-sciences.org
• Contact kathym@aprel.com
31 August 2012 GSC-8, OTTAWA Slide 17
Questions ?
31 August 2012 GSC-8, OTTAWA Slide 18
