EN 50361:2001

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Basic standard for the measurement of Specific Absorption Rate related to human exposure to electromagnetic fields from mobile phones (300 MHz - 3 GHz)Grundnorm zur Messung der Spezifischen Absorptionsrate (SAR) in Bezug auf die Sicherheit von Personen in elektromagnetischen Feldern von Mobiltelefonen (300 MHz bis 3 GHz)Norme de base relative à la mesure du Débit d'Absorption Spécifique relatif à l'exposition des personnes aux champs électromagnétiques émis par les téléphones mobiles (300 MHz - 3 GHz)Basic standard for the measurement of Specific Absorption Rate related to human exposure to electromagnetic fields from mobile phones (300 MHz - 3 GHz)33.070.01Mobilni servisi na splošnoMobile services in general13.280Varstvo pred sevanjemRadiation protectionICS:Ta slovenski standard je istoveten z:EN 50361:2001SIST EN 50361:2002en01-januar-2002SIST EN 50361:2002SLOVENSKI
STANDARD
EUROPEAN STANDARDEN 50361NORME EUROPÉENNEEUROPÄISCHE NORMJuly 2001CENELECEuropean Committee for Electrotechnical StandardizationComité Européen de Normalisation ElectrotechniqueEuropäisches Komitee für Elektrotechnische NormungCentral Secretariat: rue de Stassart 35, B - 1050 Brussels© 2001 CENELEC -All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.Ref. No. EN 50361:2001 EICS 33.060.01; 33.100.01English versionBasic standard for the measurement of Specific Absorption Raterelated to human exposure to electromagnetic fields from mobile phones(300 MHz - 3 GHz)Norme de base relative à la mesuredu Débit d'Absorption Spécifique relatifà l'exposition des personnes aux champsélectromagnétiques émis par lestéléphones mobiles (300 MHz - 3 GHz)Grundnorm zur Messung der SpezifischenAbsorptionsrate (SAR) in Bezug aufdie Sicherheit von Personen inelektromagnetischen Feldern vonMobiltelefonen (300 MHz bis 3 GHz)This European Standard was approved by CENELEC on 2001-07-03. CENELEC members are bound tocomply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving thisEuropean Standard the status of a national standard without any alteration.Up-to-date lists and bibliographical references concerning such national standards may be obtained onapplication to the Central Secretariat or to any CENELEC member.This European Standard exists in three official versions (English, French, German). A version in anyother language made by translation under the responsibility of a CENELEC member into its ownlanguage and notified to the Central Secretariat has the same status as the official versions.CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway,Portugal, Spain, Sweden, Switzerland and United Kingdom.SIST EN 50361:2002

- 3 -EN 50361:2001Contents1Scope.42Normative references.43Physical quantities, units and constants.43.1Physical quantities.43.2Constants.54Definitions.55Measurement system specifications.95.1General requirements.95.2Phantom specifications (shell and liquid).105.3Specifications of the SAR measurement equipment.115.4Scanning system specifications.125.5Mobile phone holder specifications.125.6Other equipment.126Protocol for SAR assessment.126.1Measurement preparation.126.2Tests to be performed.156.3Measurement procedure.166.4Post-processing.167Uncertainty assessment.177.1General requirements.177.2Components contributing to uncertainty.177.3Uncertainty assessment.228Measurement report.248.1General.248.2Items to be recorded in the test report.24Annex A (informative) Phantom specifications.25A.1Rationale for the phantom shape.25A.2Tissue Equivalent Liquids.27A.3Preparation of Tissue Equivalent Material.27A.4Measurement of the dielectric properties of liquids and uncertainty estimation.28Annex B (informative) Calibration of the measurement equipment (linearity, isotropy,sensitivity) and uncertainty assessment .32B.1Introduction.35B.2Assessment of the sensitivity of the dipole sensors.32B.3Isotropy.39B.4Linearity.41B.5Lower detection limit.41B.6Boundary effects.42B.7Response time.42Annex C (informative) Post-processing techniques and uncertainty assessment.43C.1Extrapolation and interpolation schemes.43C.2Averaging scheme and maximum finding.44Annex D (normative) Measurement system validation.48D.1Simplified performance checking.48D.2System Validation.50SIST EN 50361:2002

- 5 -EN 50361:2001Permittivityεfarad per metreF/mSpecific absorption rate SARwatt per kilogramW/kgWavelengthλmetremTemperatureTkelvinKHeat capacityciJ/kg KNOTE In this standard, temperature is quantified in degrees Celsius, as defined by:T(°C) = T(K) – 273,163.2 ConstantsPhysical constantMagnitudeSpeed of light in vacuumc2,998 x 108 m/sPermittivity of free spaceε08,854 x 10-12 F/mPermeability of free spaceµ04π x 10-7 H/mImpedance of free spaceZ0120π or 377 Ω4 Definitions4.1.1average (temporal) absorbed power (Pavg)the time-averaged rate of energy transfer defined by: Pavg__=1t2−t1P(t)dtt1t2(4.1)where t1 and t2 are the start and stop time of the exposure. The period t2 - t1 is the exposure durationtime4.1.2averaging time (tavg)the appropriate time over which exposure is averaged for purposes of determining compliance withthe limits4.1.3basic restrictionthe basic restrictions are the restrictions on exposure to time-varying electric, magnetic, andelectromagnetic fields that are based directly on established health effects. Concerning the frequencyrange of this standard, the physical quantity used is the Specific Absorption Rate (SAR)4.1.4boundary effectin this context the boundary effect is the influence of the boundaries between two media of thephantom on the sensitivity of the probe, as well as the influence of the probe on the field distributionand the current density if the probe approaches the boundary between two mediaSIST EN 50361:2002

- 7 -EN 50361:20014.1.14isotropydeviation of the measured value with regard to various angles of incidence of the measured signal. Inthis document it is defined for incidences covering a hemisphere centred at the tip of the probe, withan equatorial plane normal to the probe and expanding outside the probe. The axial isotropy isdefined by the maximum deviation of the SAR when rotating the probe along its main axis with theprobe exposed to a reference wave with normal incidence with regard to the axis of the probe. Thehemispherical isotropy is defined by the maximum deviation of the SAR when rotating the probealong its main axis with the probe exposed to a reference wave with varying angles of incidences withregard to the axis of the probe in the half space in front of the probe4.1.15linearitymaximum deviation over the measurement range of the measured quantity from the closest linearreference curve defined over a given interval4.1.16loss tangentthe loss tangent tan(δ) is the ratio of the imaginary part of the complex dielectric constant of amaterial to its real part4.1.17magnetic flux density (B)the magnitude of a field vector that is equal to the magnetic field strength H multiplied by thepermeability (µ) of the medium.B=µH(4.4)Magnetic flux density is expressed in units of tesla (T)4.1.18magnetic field strength (H)the magnitude of a field vector in a point that results in a force (F) on a charge q moving with thevelocity v)(HvqFµ×=(4.5)The magnetic field strength is expressed in units of ampere per metre (A/m)4.1.19measurement rangethe measurement range is the interval of operation of the measurement system, which is bounded bythe lower and the u
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