Test Approach
Contents
1. r ii 7 gt A L E3 Product Service M Se B P Y x ii 7 gt gt gt P s 1 m c ES gt T o Ue y E p P2 F3 Lo zu m a y a dg y pe p e o E y 3 fi 7 z A xe 1 M M 9 MES A A a r x e 4 4 b pu N el s E Ye TL 5 Ad 1 yi ad La L 2 rt pi A a I nnnea rarrainty Mi amp Unoose Cel acs i A it Y PR 1 n j 1 i Js 4 ai Worried AU LT Value 2 u A N gt i OO AAA T is s gt Y pa f g p a 4 5 1 y 4 i d T Specific Absorption Rate SAR Overview Presented by Mark Jenkins Wireless Business Manager TUV SUD Product Service Vina Kerai Certification Supervisor BABT lt Overview Product Service Introduction to Specific Absorption Rate SAR Why consider it What is it Legislative considerations Directives test standards Test Facilities How do we measure SAR Various systems Test requirements Head and Body SAH testing Simultaneous Transmission e Summary TUV SUD Product Service www tuvps co uk www babt com Product Service NEW MOBILE ONES HEALTH THREAT THE health risks of using mobile phones By Emma are far higher than previously thought health But last night other cancer researchers scientists warned yesterday urged caution insisting that th2. if no intended antenna position is specified tests shall be performed if applicable in both the horizontal and vertical positions relative to the phantom and with the antenna oriented away from the body device with the antenna extended and retracted such as to obtain the highest exposure condition For antennas that may be rotated through one or two planes an evaluation should be made and documented in the measurement report to the highest exposure scenario and only that position s need s to be tested A e ABT TUV SUD Product Service www tuvps co uk www babt com IEC EN 62209 2 Device Types Product Service Body supported device 6 1 4 6 a device whose intended use includes transmitting with any portion of the device being held directly against a user s body Examples Laptop computer Tablet computers credit card transaction authorisation terminals point of sale and or inventory terminals Test Approach Device shall be positioned with its base against the flat phantom Other orientations may be specified by the manufacturer in the user instructions If the intended use is not specified the device shall be tested directly against the flat phantom in all usable orientations A BA BT TUV SUD Product Service www tuvps co uk www babt com IEC EN 62209 2 Device Types Body supported device 6 1 4 6 lies Service E Examples Laptop computer Tablet computers Wireless credit car
3. DataBase Policies KDB 648474 Handsets with Multiple Transmitters and Antennas KDB 616217 Laptop computers with antennas built in on Display Screens KDB 248227 802 11 a b g Transmitters KDB 941225 3G LTE Data Modems Wireless Router Dual Transfer Mode KDB 865664 3 6 GHz devices KDB 450824 System accuracy verification TUV SUD Product Service www tuvps co uk www babt com Legislative considerations FCC continued Product Service e FCC Knowledge DataBase Policies KDB 643646 Test Reduction Considerations for Occupational PTT Radios KDB 615223 802 16e WiMax SAR Measurement Guidance KDB 680106 Wireless Charging Applications e FCC Equipment Authorisation Procedural Considerations KDB 388624 Permit But Ask List KDB 628591 TCB Exclusion List CONSTANTLY UPDATING A B T TUV SUD Product Service www tuvps co uk www babt com Legislative considerations FCC Continued Product Service e Numerous Test Exclusions in FCC Standards amp Policy Documents FCC OET 65 c KDB 447498 General RF Exposure Policy KDB 616217 laptop computers with antennas that are built into display screens KDB 648474 Handsets with multiple transmitters and antennas Limits The SAR limit in the US is 1 6 W kg for Head and Trunk for 1g Volume averaged SAR The limit for limbs Hands Wrists Feet Ankles is 4 0 W kg This limit is more stringent th
4. e Multiple transmission modes must first be assessed separately then combined arithmetically e The area scan zoom scan and peak spatial average SAR are evaluated separately at each frequency as per 6 3 1 with the transmission mode at that frequency turned on and the modes at the other frequencies turned off he SAR data are combined for each test condition device position channel configuration and accessory where two or more modes are intended to operate simultaneously P Ww TUV SUD Product Service www tuvps co uk www babt com IEC EN 62209 2 Simultaneous Transmission Product Service 6 3 2 Procedures for testing of DUTs with simultaneous multi band transmission Methods of Evaluation e Summation of peak spatial averaged SAR values simplest but most conservative method to find upper bound e Selection of highest assessed maximum SAR values accurate estimate when separate maxima are far apart and do not effect each other by more than 5 96 e Calculation of multi band SAR from existing area and zoom scans accurate and fast method always applicable A B AJB T e Volumetric scanning most accurate always applicable TUV SUD Product Service www tuvps co uk www babt com SAH results and considerations What results are required Product Service Test Report containing the SAR results in accordance to the requirements of the applicable standard Declaration of conformance to the appropria
5. fields 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publications These normative references are cited at the appropriate places in the text and the publications are listed hereafter For dated references subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision For undated references the latest edition of the publication referred to applies including EN 62209 1 2006 Numan exposure to radio frequency fields from hand held and body mounted wireless communication devices Human models instrumentation and procedures Part 1 Procedure to det rmine the specific absorption rate SAR for hand held devices used in close ty to the ear frequency range of 300 MHz to 3 GHz IEC 62209 1 2005 Council Recommendation 1999 519 EC of 12 July 1999 on the limitation of exposure of the general public to electromagnetic fields 0 Hz to 300 GHz Official Journal L 197 of 30 July 1999 International Commission on Non lonising Radiation Protection 1998 Guidelines for limiting exposure in time varying electric magnetic and electromagnetic fields up to 300 GHz Health Physics 74 494 522 3 Definitions B A BT TUV SUD Product Service www tuvps co uk www babt com Legislative considerations R amp TTE Head SAR Cor e Limits for European Union contained in Council Reco
6. intended use includes being strapped to the arm or leg of the user while transmitting except in idle mode Examples Limb mounted device types include wrist mounted ankle mounted and forearm mounted devices Test Approach Similar to body worn device test method Device shall be positioned with its base against the flat phantom Other orientations may be specified by the manufacturer in the user instructions If the intended use is not specified the device shall be tested directly against the flat phantom in all usable orientations A B A B T TUV SUD Product Service www tuvps co uk www babt com IEC EN 62209 2 Device Types Product Service Limb worn device 6 1 4 10 Test Approach additional information The strap shall be opened so that it is divided into two parts The device shall be positioned directly against the phantom surface with the strap straightened as much as possible and the back of the device towards the phantom If the strap cannot normally be opened to allow placing in direct contact with the phantom surface it may be necessary to break the strap of the device but ensuring to not damage the antenna Watch TUV SUD Product Service www tuvps co uk www babt com IEC EN 62209 2 Device Types Clothing integrated device 6 1 4 11 Examples Wireless device mobile phone integrated into a Jacket to provide voice g SA communications through an embedded speaker and microphon
7. of the Directive 1999 5 EC of the European Parliament and of the Council of 9 March 1999 on radio equipment and telecommunications terminal equipment and the mutual recognition of their conformity Text with EFA relevance Publication of titles and references of harmonised standards under the directive 2011 C 118 01 Ar amp cle of Diecive ESO i Reimane and Sie of de hammond Sende eren ampi r n land reference documen en zandard 1999 S RT Cendec EN 41003 1998 EN 41003 1906 de expires Article Mia and Not 21 11 200 Amide 2 2006 95 80 Particular safety requirements lor equipment to be connected to telecomrmunication networks OJ lists COS f HATTE EN 50360 cde 1003208 na Particular safety requirements for equipment to be connected Note 21 NA y Acide 2 Tis Article 3 1 a T to tlecommunication networks and or a cable distribution system nm omg t EN 50360 2001 Product standard to demonerate the compliance of mobile in With the basic restrictions relied to human exposure to electromagnetic fields 300 MHz 3 Hz ls EN 50360 2001 A C 2006 TUV SUD Product Service www tuvps co uk www babt com Legislative considerations R amp TTE Head SAR Cor Product Service 111 al at wir Sr ri TEMI ESTE GT Fw LA d LA A SEES EI 19 11 4 nn ww uy DS e lt wI beating baada prev PIT vv rere 15 LAM a anm restrictions related to human exposure to radio frequency electromagnetic fi
8. the intended use Is not specified a separation distance of 25 mm between the phantom surface and the device shall be used AR B AJB T TUV SUD Product Service www tuvps co uk www babt com IEC EN 62209 2 Device Types Product Service Front of face device 6 1 4 8 Test Positions Video Camera Two Way Radio gt va F e M D 1 gt N bd m P yA 4 gt g lt i b 4 i m 3 E E o lt N Sa d Em Pre Pos PE 2 p Still Camera TUV S D Product Service www tuvps co uk IEC EN 62209 2 Device Types Product Service Hand held only device 6 1 4 9 a portable device which is located in a user s hand during its intended use Additional studies remain needed for devising a representative method for evaluating SAR in the hand of hand held devices Future versions of this standard are intended to contain a test method based on scientific data and rationale Example A wireless enabled PDA with integrated RF module that is intended to be held in the hand at a distance larger than 200 mm from the head and body during use Test Approach The device shall be placed directly against the flat phantom for those sides of the device that are in contact with the hand during intended use A B AJB T TUV SUD Product Service www tuvps co uk www babt com IEC EN 62209 2 Device Types Product Service Limb worn device 6 1 4 10 a device whose
9. an the EU requirement as the limit is lower and the SAR is averaged over a smaller volume theoretically averaging over 1g rather than 10g could be a factor of 5 times more stringent A BA BT TUV SUD Product Service www tuvps co uk www babt com Legislative considerations Industry Canada Product Service Canada e RSS 102 Issue 4 March 2010 Covers mobile portable and fixed transmitters having an integral antenna systems requiring licensing with detachable antennas sold with the transmitters or licence exempt transmitters with detachable antennas e Invokes IEEE 1528 IEC 62209 and most FCC KDB Publications e Canada have adopted the more stringent US FCC SAR limit of 1 6 W kg for Head and Trunk for 1g Volume Averaged SAR e Requirement for Bystanders SAR test considerations for laptops and tablet computers with built in antennas in display screens A bystander is any person in the vicinity of the apparatus or radiating element Supplementary procedure SPR 001 refers e Instructions shall be provided in the user manual regarding any usage restrictions installation and operation instructions Any minimum separation distance should be clearly stated in the user manual between users bystanders and apparatus K T V S D Product Service www tuvps co uk www babt com Rest of World Product Service Japan and Korea e Have adopted the EU ICNIRP limit of 2 W kg for Head and Trunk for 10g Volume ave
10. d transaction authorisation terminals TUV SUD Product Service www tuvps co uk www babt com IEC EN 62209 2 Device Types Product Service Desktop device 6 1 4 7 a device placed or mounted on a desk table or similar supporting structure and the antenna of which is intended to be operated closer than 200 mm from the human body Examples Cellular Desktop Telephone Wireless enabled desktop computer Test Approach The DUT shall be positioned at the distance and in the orientation to the phantom that corresponds to the intended use as specified by the manufacturer in the user instructions For devices that employ an external antenna with variable positions tests shall be performed for all antenna positions specified A B A B T TUV SUD Product Service www tuvps co uk www babt com IEC EN 62209 2 Device Types Product Service Desktop device 6 1 4 7 Test Positions TUV SUD Product Service www tuvps co uk www babt com IEC EN 62209 2 Device Types Product Service Front of face device 6 1 4 8 hand held device operated in close proximity to the face Examples Two way radio that is held at a distance from the face of the user when transmitting Test Approach In these cases the device under test shall be positioned at the distance to the phantom surface that corresponds to the intended use as specified by the manufacturer in the user instructions If
11. d held only device 6 1 4 9 limb worn device 6 1 4 10 e clothing integrated device 6 1 4 11 generic device 6 1 4 3 TUV SUD Product Service www tuvps co uk www babt com IEC EN 62209 2 Device Types Body worn device 6 1 4 4 Product Service Test approach If the user instructions provided by the manufacturer specify intended use with a carry accessory belt clip holster carry case or similar the device shall be placed as intended in that carry accessory and the carry accessory shall be placed in the intended orientation against the flat phantom not more than 25mm Test at minimum practical supported distance a e ie e ie x Un B D Dar Dar tes tes gt JP r n A N Mil F 107 3107 gi gi If the intended use is not specified in the user instructions the device shall be tested with all its surfaces directly against the flat phantom The details of the device position especially contact points to the surface of the phantom shall be documented in the measurement report e ABT TUV SUD Product Service www tuvps co uk www babt com IEC EN 62209 2 Device Types Device with hinged or swivel antenna 6 1 4 5 Example For devices that employ one or more external antennas with variable positions e g antenna extended retracted rotated these shall be positioned in accordance with the user instructions provided by the manufacturer For a device with only one antenna
12. dy Partial body SARs should be summed together whole body SARs should be summed together Partial body should not be summed with total body where SAR is the SAR caused by exposure at frequency i SARL is the SAR basic restriction Si is the power density at frequency 7 SL is the power density basic restriction TUV SUD Product Service www tuvps co uk www babt com Simultaneous Transmission Product Service EN 62311 2008 Clause 8 ICNIRP Page 21 Council Rec 1999 519 EC Annex IV Example e Simultaneous configurations WWAN WLAN WWAN BT WLAN BT e We do not need to consider BT if power lt 20mW so simultaneous configurations to consider are WWAN WLAN only e GSM900 SAR is highest for WWAN 2G 3G and 802 11g is highest for 802 11b g Soff Max 10g SAR GSM900 0 8W kg Max 10g SAR WLAN802 11g 1 0W kg Calculation is therefore Max 10g GSM900 W kg 2 0W kg Max 10g 802 11g W kg 2 0W kg lt 1 0 8 2 1 0 2 1 0 9 1 Therefore compliant for simultaneous transmission exposure TUV SUD Product Service www tuvps co uk www babt com IEC EN 62209 2 Simultaneous Transmissior Product Service 6 3 2 Procedures for testing of DUTs with simultaneous multi band transmission Low power transmitters can be eliminated from evaluation for simultaneous transmission exposure if their power levels fall below the exclusion threshold outlined in earlier slide
13. e Speag DASY4 system Compliant to IEC EN FCC amp Industry Canada requirements Flat phantom provides same perpendicular presentation of probe to phantom surface as SARA C New capability for 1 6 GHz for Satellite handheld devices 2 6 GHz for LTE handheld devices and 5 GHz for 802 11a devices Available at TUV SUD in Q3 2011 TUV SUD Product Service www tuvps co uk www babt com Protocol for SAR assessment Product Service e System Check A system check according to the procedures of Annex D of EN 62209 1 2006 shall be executed before doing SAR measurements The system check is a complete 1 gor 10g average SAR measurement The measured 1 gor 10 g average SAR value is normalized to the target input power TUV SUD Product Service www tuvps co uk www babt com Protocol for SAR assessment Product Service Tests to be performed Head SAR The mobile phone shall be tested in the cheek and tilted positions on left and right sides of the phantom The mobile phone shall initially be configured for a cheek position and be transmitting at full power on the centre frequency of the band under investigation The mobile should then be configured for an 15 position and be transmitting at full power on the centre frequency of the band under investigation When the worst case position has been found then the evaluation of the upper and lower frequencies w
14. e 0 al Headgear with integrated wireless devices Test Approach All wireless or RF transmitting components shall be placed in the orientation and at the separation distance to the phantom surface that correspond to intended use of the device when it is integrated into the clothing AN BA BT TUV SUD Product Service www tuvps co uk www babt com IEC EN 62209 2 Device Types Product Service Clothing integrated device 6 1 4 11 Test Positioning TUV SUD Product Servi ce ee EN 62311 Harmonised Standard Product Service e EN 62311 2008 covers intentional and unintentional radiators operating within O Hz to 300 GHz e Applicable where no dedicated product or product family standard applies e Choice of assessment methods such as SAR test field calculation modelling e Annex B2 provides Localised SAR test procedure e Invokes IEC 62209 1 for tissue simulating liquid specification a TT TUV SUD Product Service www tuvps co uk www babt com Simultaneous Transmission Product Service EN 62311 2008 Clause 8 e Simple summing of max 10g SAR for those transmitters with average emitted output power 20mW Each transmitter is considered and the simple formula is used Ignore the power density part of the formula where frequencies are less than 10GHz 10 GH 300 GH SAR N E lt 1 i 100 kHz SAR gt 10 GHz SL where SARs can be for the whole body or part of bo
15. e field standard SAR probe equation is directly proportional to the temperature change SAR equation Temperature change measurements are rarely used for SAR readings mainly due to problems such as poor repeatability n practice complicated mathematical formula are applied to determine the Volume Averaged SAR figure This is all dealt with by post processing software after each scan has been performed e The probe is then positioned at various points within a Phantom filled with tissue simulant e SAR Probes average out duty cycles of Radio devices that are not transmitting continuously For example a GSM mobile only transmits for approximately 1 8 of the time so that a SAR probe measures 1 8th of the peak power from such devices Lm B A JB T TUV SUD Product Service www tuvps co uk www babt com Head Body and Limb SAR e SAR tests Head Body Limbs Head Mobile Phones DECT phones etc Limbs Ankle or wrist worn tracking devices Body Laptops containing RF modules PDA s Body worn transmitters 2 t m PA YANAN Antenna WLAN Antenna 3802 11n Antenna TUV SUD Product Service www tuvps co uk www babt com RF Exposure Product Service HF Exposure MPE Maximum Permissible Exposure Needs consideration if the human body could come into close proximity with an RF transmitter but this is not the intention of the device rather it is a consequence of it s us
16. e or positioning E g Wireless router Femto cell base station etc EN 62311 Generic Standard EN 50385 General public Fixed terminals Base Stations EN 50371 Low Power lt 20mW being superseded by EN 62479 2010 Cenelec EN 62479 2010 EN 50371 2002 1 9 2013 Article 3 1 a and Assessment of the compliance of low power electronic and Note 2 1 Article 2 2006 95 EC electrical equipment with the basic restrictions related to human exposure to electromagnetic fields 10 MHz to 300 GHz IEC 62479 2010 Modified Others For more information contact TUV SUD TUV SUD Product Service www tuvps co uk www babt com Legislative considerations R amp T TE e For European Union e R amp TTE Directive Conformance 1999 5 EC e Article 3 1 a Health and Safety of the user and bystanders e Council Recommendation 1999 519 EC e Public exposure to electromagnetic fields e LVD Directive Conformance 2006 95 EC RF Exposure EN 62311 2008 This standard is intended to cover both intentional and non intentional radiators TUV SUD Product Service www tuvps co uk www babt com Legislative considerations R amp T TE Head SAR e For European Union Product Service 15 4 2011 Official Joumal of the European Union C 118 1 IV Notices NOTICES FROM EUROPEAN UNION INSTITUTIONS BODIES OFFICES AND AGENCIES EUROPEAN COMMISSION Commission communication in the framework of the implementation
17. e scientists claims TUV SUD Product Service www tuvps co uk www babt com TUV SUD Product Service SAR is the measure of how much energy in this case Radio Frequency energy is absorbed by the human body in a certain volume over a certain period of time RF energy per kilogram per second A radio transmitter needs to Energy make a link with a base station incident or other radio device in order to on head do what it is designed for Your body will absorb Radio energy and that will have a heating effect on your body the severity of which depends on various factors www tuvps co uk www babt com What is SAR Energy lost in ditections other than base station Product Service N Energy received by base station Base station s er What is SAR continued Product Service Most SAR measurements are performed using calibrated E field probes in conjunction with a Robotic arm positional accuracy and Data Acquisition Electronics signal processing and detection e SAR is expressed as a figure in W kg Volume Averaged over 1g or 10g of body tissue e The main formula for a spot SAR for E field probes is 2 o E p o Conductivity of the tissue S m p Mass density of the tissue kg m E 2 rms electric field strength V m SAR TUV SUD Product Service www tuvps co uk www babt com What is SAR continued Product Service The
18. ithin the band of investigation can be assessed TUV SUD Product Service www tuvps co uk www babt com Application of SAR Rules Product Service e The application of the rules governing RF Exposure are dependant upon Installation Category Portable Mobile or Fixed The output power of the transmitter Exempted or subject to evaluation Device Type Mobile Phone Cellular Telephone USB Dongle and Accessories Headset Microphone Holsters Belt Clip Exposure Region Head Body Limbs Where appropriate other co located transmitters Environment Occupational or General Public usage TT TUV SUD Product Service www tuvps co uk www babt com Head SAR Product Service e Held to Ear Tested left and Right ear touch and 15 Angle Tested using Head SAM Specific Anthropomorphic Mannequin Phantom e Held to Face Mainly for Push to Talk devices Tested using Flat Phantom at user manual distance intended use distance Where both supported and Held to Ear is worst case Held to Face tests are not needed SN B A B T TUV SUD Product Service www tuvps co uk www babt com Body SAR IEC EN 62209 2 Device Types Product Service Clause 6 1 4 1 Device Types Covered by IEC EN 62209 2 body worn device 6 1 4 4 device with hinged or swivel antenna 6 1 4 5 body supported device 6 1 4 6 desktop device 6 1 4 7 e front of face device 6 1 4 8 han
19. mmendation 1999 519 EC of 12 July 1999 Product Service Table 1 Basic restrictions for electric magnetic and electromagnetic fields 0 Hz to 300 GHz Magnetic Current Whole body Localised Localised density average SAR SAR das a mA m SAR head and trunk limbs W im rms W kg W kg W kg Power Frequency range 0 Hz gt 0 1 Hz 1 4 Hz 4 000 Hz Head SAR limit 1000 Hz 100 kHz IC 0 MHz 10 MHz 10 GHz 10 300 GHz 10 s e T V S D Product Service www tuvps co uk www babt com Legislative considerations R amp T TE Head Body Product Service European standards for Head SAR EN 50360 EN 50360 AC 2006 EC EN 62209 1 EN 50361 e European standards for Body SAR EC EN 62209 2 EN 62311 e Simultaneous Transmission Council Rec 1999 519 EC ICNIRP EN 62311 e Low Power devices nem AME CES EN 62479 EN 50371 The SAR limit in Europe is 2 W kg for Head and Trunk for 10g Volume averaged SAR This limit is based on the requirements of the independent scientific organisation ICNIRP which is sponsored by the WHO B A BT TUV SUD Product Service www tuvps co uk www babt com Legislative considerations FCC e ForUSA Product Service Standards amp FCC Regulations FCC OET 65 c FCC 47CFR 2 1093 Portable devices FCC 47CFR 2 1091 1 1310 Mobile devices FCC 47CFR 1 1307 Fixed mount devices e FCC Knowledge
20. raged SAR e Both countries have their own SAR standards for Test Methods Japans being the ARIB published standard STD T56 e Article 47 Clause 2 of the Korea Radio Wave Act and MIC public notice 2000 91 Australia e Test standard is ACA Radiocommunications EM Radiation Human Exposure Standard 2003 Amat1 2007 e Limits from ARPANSA ICNIRP 2 W kg for Head and Trunk for 10g Volume averaged SAR TUV SUD Product Service www tuvps co uk www babt com SAR test system e ndexSAR SARA 2 Fully compliant to IEC EN FCC and Industry Canada requirements 6 axis robot arm with isotropic E field probe with optical link to Windows PC software We have two systems available TUV SUD Product Service www tuvps co uk www babt com Product Service IndexSAR SARA C Uses 90 probe so that probe surface is presented perpendicular to the surface of the Phantom this eliminates any angular uncertainties compared to the upright phantom as used in the SARA 2 TUV SUD Product Service www tuvps co uk www babt com Product Service SAR test system e ndexSAR SARA C Improves SAR uncertainty Much faster scan times Offers a significant time saving in SAR evaluation Much smaller footprint that existing SAR systems without the need for expensive robotic arm for probe positioning TUV SUD Product Service www tuvps co uk www babt com SAR test system Product Servic
21. tact with the Human head or trunk TUV SUD Product Service can perform SAR testing for all such devices and our test reports are accepted worldwide Various test platforms are available depending on the device and the manufacturers requirements For more information visit www tuvps co uk www twitter com tuvps www tuvps blogspot com www youtube com user tuvproductservice a B A B T THANK YOU Any Questions E mail info tuvps co uk Tel 44 0 1489 558 100 www tuvps co uk www babt com V
22. te standards harmonised policies procedures Maximum SAR measurements compliant against applicable regulatory limit For Industry Canada additionally provide an RF Technical Brief and Attestation RSS 102 Annex A and B Considerations ntended practical usage determine required standards tests Accessories holsters belt clips headsets microphones batteries Antennas Variants Family of devices Exposure Category safety info usage installation instructions TUV SUD Product Service www tuvps co uk www babt com User Instructions A Place RF Exposure guidance in user manual for user m AJE T And finally Product Service e SAR is the measurement of the heating effect a Radio Transmitter against the Human Head or Trunk what about the non thermal effects e Are mobile phones safe e Are some mobile phones safer than others e Are some people more at risk than others e Whatcan do as a manufacturer or a module integrator of a wireless device that could be used in close proximity to the head or body TUV SUD Product Service www tuvps co uk www babt com In Summary Product Service SAR is a legal requirement in all developed countries of the world There are requirements for Head and Body SAR measurements to be performed if this part is the product s intended use RF exposure data is required if the product is not indented to be used in con
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