SIST EN 60846-1:2014

Radiation protection instrumentation - Ambient and/or directional dose equivalent (rate) meters and/or monitors for beta, X and gamma radiation -- Part 1: Portable workplace and environmental meters and monitors

IEC 60846-1:2009 specifies the design requirements and the performance characteristics of dose equivalent (rate) meters intended for the determination of ambient dose equivalent (rate) and directional dose equivalent (rate) as defined in ICRU Report 47. Applies to dose equivalent (rate) meters and/or monitors for the measurement of ambient dose equivalent (rate) and/or directional dose equivalent (rate) from external beta, X and gamma radiation.

Strahlenschutz-Messgeräte - Umgebungs- und/oder Richtungs-Äquivalentdosis(leistungs)-Messgeräte und/oder Monitore für Beta-, Röntgen- und Gammastrahlung -- Teil 1: Tragbare Messgeräte und Monitore für den Arbeitsplatz und die Umgebung

Instrumentation pour la radioprotection - Instruments pour la mesure et/ou la surveillance de l'équivalent de dose (ou du débit d'équivalent de dose) ambiant et/ou directionnel pour les rayonnements bêta, X et gamma -- Partie 1: Instruments de mesure et de surveillance portables pour les postes de travail et l'environnement

La CEI 60846-1:2009 spécifie les exigences relatives à la conception et aux caractéristiques des performances des instruments de mesure de l'équivalent de dose (ou du débit) destinés à la détermination de l'équivalent de dose ambiant (ou du débit) et de l'équivalent de dose directionnel (ou du débit), comme cela est défini dans le Rapport 47 de la ICRU. S'applique aux appareils de mesure et/ou de surveillance de l'équivalent de dose (ou du débit), destinés à la mesure de l'équivalent de dose ambiant (ou du débit) et/ou de l'équivalent de dose directionnel (ou du débit) dû à l'exposition externe aux rayonnements bêta, X et gamma.

Oprema za zaščito pred sevanjem - Merilniki ekvivalentne doze v prostoru in/ali usmerjene ekvivalentne doze in/ali monitorji sevanja beta, rentgenskega sevanja in sevanja gama (IEC 60846-1:2009, spremenjen)

Standard EN IEC 60846-1 se uporablja za merilnike in/ali monitorje ekvivalentne doze za merjenje ekvivalentne doze v prostoru in/ali usmerjene ekvivalentne doze sevanja beta, rentgenskega sevanja in sevanja gama, kot je priporočeno v poročilu 47 ICRU. Ta del skupine standardov IEC 60846 se uporablja le za prenosne merilnike in monitorje, ki so namenjeni uporabi na delovnem mestu in v okolju. Uporablja se za naprave, ki merijo ekvivalentno dozo ali hitrost ekvivalentne doze zunanjega sevanja beta in/ali rentgenskega sevanja in sevanja gama v razponu doz med 0,01 μSv in 10 Sv ter razponu hitrosti doz med 0,01 μSv h-1 in 10 Sv h-1 ter v energetskih razponih iz naslednje preglednice. Vse energetske vrednosti so povprečja glede na prevladujočo količino doze.

General Information

• Status: Published
• Publication Date: 12-Oct-2014
• ICS: 13.280 - Radiation protection
• ICS: 17.240 - Radiation measurements
• Technical Committee: I09 - Imaginarni 09
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 09-Oct-2014
• Due Date: 14-Dec-2014
• Completion Date: 13-Oct-2014
• Ref Project: EN 60846-1:2014 - Radiation protection instrumentation - Ambient and/or directional dose equivalent (rate) meters and/or monitors for beta, X and gamma radiation - Part 1: Portable workplace and environmental meters and monitors

Relations

• Replaces: SIST EN 60846:2005 - Radiation protection instrumentation - Ambient and/or directional dose equivalent (rate) meters and/or monitors for beta, X and gamma radiation
• Effective Date: 07-Feb-2012
• Revised: SIST EN 60846:2005 - Radiation protection instrumentation - Ambient and/or directional dose equivalent (rate) meters and/or monitors for beta, X and gamma radiation
• Effective Date: 06-May-2014

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2014
1DGRPHãþD
SIST EN 60846:2005
2SUHPD]D]DãþLWRSUHGVHYDQMHP0HULOQLNLHNYLYDOHQWQHGR]HYSURVWRUXLQDOL
XVPHUMHQHHNYLYDOHQWQHGR]HLQDOLPRQLWRUMLVHYDQMDEHWDUHQWJHQVNHJDVHYDQMDLQ
VHYDQMDJDPD,(&VSUHPHQMHQ
Radiation protection instrumentation - Ambient and/or directional dose equivalent (rate)
meters and/or monitors for beta, X and gamma radiation -- Part 1: Portable workplace
and environmental meters and monitors
Strahlenschutz-Messgeräte - Umgebungs- und/oder Richtungs-Äquivalentdosis
(leistungs)-Messgeräte und/oder Monitore für Beta-, Röntgen- und Gammastrahlung --
Teil 1: Tragbare Messgeräte und Monitore für den Arbeitsplatz und die Umgebung
Instrumentation pour la radioprotection - Instruments pour la mesure et/ou la surveillance
de l'équivalent de dose (ou du débit d'équivalent de dose) ambiant et/ou directionnel
pour les rayonnements bêta, X et gamma -- Partie 1: Instruments de mesure et de
surveillance portables pour les postes de travail et l'environnement
Ta slovenski standard je istoveten z: EN 60846-1:2014
ICS:
13.280 Varstvo pred sevanjem Radiation protection
17.240 Merjenje sevanja Radiation measurements
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 60846-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2014
ICS 13.280 Supersedes EN 60846:2004
English Version
Radiation protection instrumentation - Ambient and/or directional
dose equivalent (rate) meters and/or monitors for beta, X and
gamma radiation - Part 1: Portable workplace and environmental
meters and monitors
(IEC 60846-1:2009 , modified)
Instrumentation pour la radioprotection - Instruments pour la Strahlenschutz-Messgeräte - Umgebungs- und/oder
mesure et/ou la surveillance de l'équivalent de dose (ou du
Richtungs-Äquivalentdosis(leistungs)-Messgeräte und/oder
débit d'équivalent de dose) ambiant et/ou directionnel pour Monitore für Beta-, Röntgen- und Gammastrahlung - Teil 1:
les rayonnements bêta, X et gamma - Partie 1: Instruments Tragbare Messgeräte und Monitore für den Arbeitsplatz und
de mesure et de surveillance portables pour les postes de die Umgebung
travail et l'environnement (IEC 60846-1:2009 , modifiziert)
(CEI 60846-1:2009 , modifiée)
This European Standard was approved by CENELEC on 2014-07-28. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60846-1:2014 E
Foreword
This document (EN 60846-1:2014) consists of the text of IEC 60846-1:2009 prepared by IEC/SC 45B
"Radiation protection instrumentation" of IEC/TC 45 "Nuclear instrumentation", together with the
common modifications prepared by CLC/TC 45B "Radiation protection instrumentation".
The following dates are fixed:
• latest date by which this document has to be implemented (dop) 2015-07-28
at national level by publication of an identical
national standard or by endorsement
• latest date by which the national standards conflicting (dow) 2017-07-28
with this document have to be withdrawn
This document supersedes EN 60846:2004.
Clauses, subclauses, notes, tables, figures and annexes which are additional to those in
IEC 60846-1:2009 are prefixed “Z”.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
– 3 – EN 60846-1:2014
Endorsement notice
The text of the International Standard IEC 60846-1:2009 was approved by CENELEC as a European
Standard with agreed common modifications.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 60325:2002 NOTE  Harmonized as EN 60325:2004 (modified).
IEC 61005:2003 NOTE  Harmonized as EN 61005:2004 (modified).
COMMON MODIFICATIONS
All over the document
Replace “1,5 MeV” with “1,33 MeV”.
3 Terms and definitions
In the note of 3.19, replace “Tables 5 to 8” with “Tables 5 to 9”.
4 Units and list of symbols
In Table 2, delete the row starting with t .
min
5 General characteristics of ambient and directional dose equivalent (rate)
meters
In 5.7, replace “Tables 4 to 8” with “Tables 5 to 9”.
8 Radiation performance requirements and tests
In 8.9.2.2, replace the second paragraph by the following:
The initial and final dose equivalent rates shall differ by a factor of 10 or more up to the factor for the
change from background dose rate to the maximum dose rate of the rated range. The measurements
shall be carried out for both an increase and a decrease in the dose equivalent rate by this factor. The
initial or the final dose equivalent rate shall be the background dose rate.
10 Mechanical characteristics of directional and ambient dose equivalent (rate)
meters
Add the following new subclause.
10.Z1 Drop test during operation
10.Z1.1 Requirements
Portable dose equivalent (rate) meters shall be able to withstand without damage, a drop from a
height of 0,3 m onto a hard steel or concrete surface.

10.Z1.2 Test method
The dose equivalent (rate) meter shall withstand at least one single drop from 0,3 m to each surface of
dose equivalent (rate) meter so that the unit is still operable after the drop. The test may be performed
either with one or more test units in such a way that one drop onto each surface of the dose equivalent
(rate) meter is tested. The instrument passes the test if the instrument response does not deviate after
the 6 drop tests from the original response by more than - 17 % to + 25 %. The drop can make the
instrument switch off but the user shall be able to switch the unit back on. The physical condition of the
instrument shall not be affected by these drops (for example solder joints shall hold, nuts and bolts
shall not come loose).
11 Environmental characteristics, performance requirements and tests
In 11.4.2, replace the last sentence by “The differences shall be within - 9 % to + 11 %”.
Table 9 – Mechanical performance under test conditions
Add the following at the end of Table 9.
Drop during operation 0,3 m 6 drops from a given height onto 10.Z1
steel or concrete surface
Annexes
Add the following new annex.
– 5 – EN 60846-1:2014
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60050-151 2001 International Electrotechnical Vocabulary (IEV) - -
Part 151: Electrical and magnetic devices
IEC 60050-393 2003 International Electrotechnology Vocabulary - -
Part 393: Nuclear instrumentation - Physical
phenomena and basic concepts
IEC 60050-394 2007 International Electrotechnical Vocabulary - -
Part 394: Nuclear instrumentation - Instruments,
systems, equipment and detectors
IEC 60068-2-31 2008 Environmental testing EN 60068-2-31 2008
Part 2-31: Tests - Test Ec: Rough handling
shocks, primarily for equipment-type specimens
1)
IEC 60086-1 2006 Primary batteries EN 60086-1 2007
Part 1: General
2)
IEC 60086-2 2006 Primary batteries EN 60086-2 2007
+ corr. April 2007 Part 2: Physical and electrical specifications
IEC 60359 2001 Electrical and electronic measurement EN 60359 2002
equipment - Expression of performance
IEC 60529 1989 Degrees of protection provided by enclosures EN 60529 1991
+ A1 1999 (IP Code) + corr. May 1993
+ A1 2000
IEC 61000-4-2 1995 Electromagnetic compatibility (EMC) EN 61000-4-2 1995
+ A1 1998 Part 4-2: Testing and measurement techniques - + A1 1998
3)
+ A2 2000 Electrostatic discharge immunity test + A2  2001
IEC 61000-4-3 2006 Electromagnetic compatibility (EMC) EN 61000-4-3 2006
+ A1 2007 Part 4-3: Testing and measurement techniques - + A1 2008
Radiated, radio-frequency, electromagnetic field
immunity test
4)
IEC 61000-4-6 2008 Electromagnetic compatibility (EMC) EN 61000-4-6 2009
Part 4-6: Testing and measurement techniques -
Immunity to conducted disturbances, induced by
radio-frequency fields
IEC 61000-4-8 1993 Electromagnetic compatibility (EMC) EN 61000-4-8 1993
5)
+ A1 2000 Part 4-8: Testing and measurement techniques - + A1  2001
Power frequency magnetic field immunity test

1) EN 60086-1 is superseded by EN 60086-1:2011, which is based on IEC 60086-1:2011.
2) EN 60086-2 is superseded by EN 60086-2:2011, which is based on IEC 60086-2:2011.
3) EN 61000-4-2 is superseded by EN 61000-4-2:2009, which is based on IEC 61000-4-2:2008.
4) EN 61000-4-6 is superseded by EN 61000-4-6:2014, which is based on IEC 61000-4-6:2013.
5) EN 61000-4-8 is superseded by EN 61000-4-8:2010, which is based on IEC 61000-4-8:2009.

IEC 61000-6-2 2005 Electromagnetic compatibility (EMC) EN 61000-6-2 2005
Part 6-2: Generic standards - Immunity for + corr. September 2005
industrial environments
IEC 61187 (mod) 1993 Electrical and electronic measuring equipment - EN 61187 1994
Documentation + corr. March 1995
IEC/TR 62461 2006 Radiation protection instrumentation - - -
Determination of uncertainty in measurement
ISO/IEC Guide 98-3 2008 Uncertainty of measurement - -
Part 3: Guide to the expression of uncertainty in
measurement (GUM:1995)
ISO/IEC Guide 99 2007 International vocabulary of metrology - Basic and - -
general concepts and associated terms (VIM)
ISO 4037-1 1996
X and gamma reference radiation for calibrating - -
dosemeters and doserate meters and for
determining their response as a function of
photon energy
Part 1: Radiation characteristics and production
methods
ISO 4037-2 1997 X and gamma reference radiation for calibrating - -
dosemeters and doserate meters and for
determining their response as a function of
photon energy
Part 2: Dosimetry for radiation protection over
the energy ranges from 8 keV to 1,3 MeV and
4 MeV to 9 MeV
ISO 4037-3 1999 X and gamma reference radiation for calibrating - -
dosemeters and doserate meters and for
determining their response as a function of
photon energy
Part 3: Calibration of area and personal
dosemeters and the measurement of their
response as a function of energy and angle of
incidence
ISO 4037-4 2004 X and gamma reference radiation for calibrating - -
dosemeters and doserate meters and for
determining their response as a function of
photon energy
Part 4: Calibration of area and personal
dosemeters in low energy X reference radiation
fields
ISO 6980-1 2006 Nuclear energy - Reference beta-particle - -
radiation
Part 1: Methods of production
ISO 6980-2 2004 Nuclear energy - Reference beta-particle - -
radiation
Part 2: Calibration fundamentals related to basic
quantities characterizing the radiation field
ISO 6980-3 2006 Nuclear energy - Reference beta-particle - -
radiation
Part 3: Calibration of area and personal
dosemeters and the determination of their
response as a function of beta radiation energy
and angle of incidence
IEC 60846-1 ®
Edition 1.0 2009-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Radiation protection instrumentation – Ambient and/or directional dose
equivalent (rate) meters and/or monitors for beta, X and gamma radiation –
Part 1: Portable workplace and environmental meters and monitors

Instrumentation pour la radioprotection – Instruments pour la mesure et/ou la
surveillance de l'équivalent de dose (ou du débit d'équivalent de dose) ambiant
et/ou directionnel pour les rayonnements bêta, X et gamma –
Partie 1: Instruments de mesure et de surveillance portables pour les postes de
travail et l’environnement
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
XA
CODE PRIX
ICS 13.280 ISBN 978-2-88910-308-9
– 2 – 60846-1 © IEC:2009
CONTENTS
FOREWORD.6
1 Scope and object.8
2 Normative references .9
3 Terms and definitions .10
4 Units and list of symbols.15
4.1 Units .15
4.2 List of symbols .16
5 General characteristics of ambient and directional dose equivalent (rate) meters .18
5.1 Indication .18
5.2 Read-out .18
5.3 Dose equivalent rate range.18
5.4 Effective range of measurement .18
5.5 Minimum range of measurement.19
5.6 Rated range of an influence quantity .19
5.7 Minimum rated range of influence quantity .19
5.8 Alarm levels .19
5.9 Additional indication .20
5.10 Failure operation of indication .20
5.11 Ease of decontamination .20
5.12 Information given on the instruments.20
5.13 Algorithm to evaluate the indicated value .20
5.14 Classification of the dosemeters.20
6 General test procedures .20
6.1 Instructions for use.20
6.2 Nature of tests.21
6.3 Reference conditions and standard test conditions .21
6.4 Tests for influence quantities of type F .21
6.5 Tests for influence quantities of type S.21
6.6 Consideration of non-linearity.21
6.7 Consideration of several detectors or signals in a dosemeter .21
6.8 Position of dose equivalent (rate) meter for test purposes .22
6.9 Low dose equivalent rates.22
6.10 Statistical fluctuations .22
6.11 Production of reference radiation.22
6.12 Reference photon radiation .22
6.13 Reference beta radiation .23
6.14 Determination of dose equivalent (rate) response.23
7 Additivity of indicated value .23
7.1 Requirements.23
7.2 Method of test .23
7.3 Interpretation of the results .24
8 Radiation performance requirements and tests .24
8.1 General .24
8.2 Consideration of the uncertainty of the conventional quantity value .24
8.3 Model function.24

60846-1 © IEC:2009 – 3 –
8.4 Variation of the response due to photon radiation energy and angle of
incidence.24
&
8.4.1 Measuring quantity H'(0,07) or H'(0,07) .24
&
8.4.2 Measuring quantity H*(10) or H*(10) .25
8.5 Variation of the response due to beta radiation energy and angle of
incidence.26
&
8.5.1 Measuring quantity H'(0,07) or H'(0,07) .26
&
8.5.2 Measuring quantity H*(10) or H*(10) .27
8.6 Response to neutron radiation.28
8.6.1 Requirements .28
8.6.2 Test method .28
8.7 Linearity and statistical fluctuations .28
8.7.1 General .28
8.7.2 Requirements .28
8.7.3 Method of test .28
8.7.4 Interpretation of the results.29
8.8 Overload characteristics .30
8.8.1 Dose equivalent meters .30
8.8.2 Dose equivalent ratemeters .30
8.9 Response time .31
8.9.1 Dose equivalent meters .31
8.9.2 Dose equivalent ratemeters .31
8.10 Interrelation between response time and statistical fluctuations.32
8.11 Variation of the response due to dose rate dependence of dose
measurements.32
8.11.1 General .32
8.11.2 Requirements .32
8.11.3 Method of test using radiation sources .33
8.11.4 Method of test using natural radiation .33
8.11.5 Interpretation of the results.33
8.12 Response to pulsed ionizing radiation fields .33
8.12.1 Requirements .33
8.12.2 Test method .33
8.13 Requirements on the accuracy of alarm of dose equivalent (rate) monitors.33
8.13.1 Dose equivalent alarm .33
8.13.2 Dose equivalent rate alarm.34
9 Electrical characteristics of directional and ambient dose equivalent (rate) meters .35
9.1 Stability of zero indication with time.35
9.1.1 Requirements .35
9.1.2 Test method .35
9.1.3 Interpretation of the results.35
9.2 Warm-up time.35
9.2.1 Requirements .35
9.2.2 Test method .35
9.2.3 Interpretation of the results.35
9.3 Power supplies.36
9.3.1 General .36
9.3.2 Requirements .36
9.3.3 Test method .36

– 4 – 60846-1 © IEC:2009
10 Mechanical characteristics of directional and ambient dose equivalent (rate)
meters .37
10.1 Shock during operation (microphonics).37
10.1.1 General .37
10.1.2 Requirements .37
10.1.3 Method of test and interpretation of the results .37
10.2 Drop test during transport.38
10.2.1 Requirements .38
10.2.2 Test method .38
10.2.3 Interpretation of the results.38
10.3 Orientation of dose equivalent (rate) meter (geotropism) .38
10.3.1 General .38
10.3.2 Requirements .38
10.3.3 Test method .38
11 Environmental characteristics, performance requirements and tests .39
11.1 General .39
11.2 Ambient temperature .39
11.2.1 Requirements .39
11.2.2 Test method .39
11.2.3 Interpretation of the results.39
11.3 Relative humidity.39
11.3.1 Requirements .39
11.3.2 Test method .39
11.3.3 Interpretation of the results.40
11.4 Atmospheric pressure.40
11.4.1 Requirements .40
11.4.2 Test method .40
11.5 Sealing against moisture .40
11.6 Storage and transport.40
11.7 Electromagnetic compatibility .40
11.7.1 General .40
11.7.2 Emission of electromagnetic radiation.41
11.7.3 Electrostatic discharge .41
11.7.4 Radiated electromagnetic fields.41
11.7.5 Conducted disturbances induced by radio-frequencies .42
11.7.6 50 Hz/60 Hz magnetic field.42
12 Software.43
12.1 General .43
12.2 Requirements.43
12.2.1 General requirements .43
12.2.2 Design and structure of the software .43
12.2.3 Protection of the software and data .43
12.2.4 Documentation .44
12.3 Method of test .44
12.3.1 General .44
12.3.2 Testing the documentation.45
13 Summary of characteristics .45
14 Documentation .45

60846-1 © IEC:2009 – 5 –
14.1 Information on the instrument .45
14.2 Certificate .45
14.3 Operation and maintenance manual .46
14.4 Type test report.46
Annex A (normative) Statistical fluctuations .52
Annex B (informative) Usage categories of ambient/directional dose (rate) meters .54
Annex C (informative) Calibration of ambient dose equivalent (rate) meters for
environmental monitoring.55
Bibliography.57

Table 1 – Measuring quantities and energy ranges covered by the standard.118
Table 2 – Symbols (and abbreviated terms) .1116
Table 3 – Values of c and c for w different dose (rate) values and n indications for
1 2
each dose (rate) value .1146
Table 4 – Reference conditions and standard test conditions .1147
Table 5 – Radiation characteristics of directional dose equivalent (rate) meters.1148
Table 6 – Radiation characteristics of ambient dose equivalent (rate) meters .1149
Table 7 – Electrical, mechanical and environmental characteristics of directional and
ambient dose equivalent (rate) meters .1150
Table 8 – Maximum values of deviation due to electromagnetic disturbances .1150
Table 9 – Mechanical performance under test conditions .1151
Table A.1 – Number of instrument readings required to detect true differences (95 %
confidence level) between two sets of instrument readings on the same instrument.1153
Table B.1 – Usage categories of ambient or directional dose (rate) meters .1154

– 6 – 60846-1 © IEC:2009
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
RADIATION PROTECTION INSTRUMENTATION –
AMBIENT AND/OR DIRECTIONAL DOSE EQUIVALENT (RATE)
METERS AND/OR MONITORS FOR BETA, X AND GAMMA RADIATION –

Part 1: Portable workplace and environmental meters and monitors

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60846-1 has been prepared by subcommittee 45B: Radiation pro-
tection instrumentation, of IEC technical committee 45: Nuclear instrumentation.
This edition cancels and replaces the second edition of IEC 60846 published in 2002 of which
it constitutes a technical revision. It also replaces IEC 61017-1:1991 and IEC 61017-2:1994
as far as portable equipment is concerned.
The text of this standard is based on the following documents:
FDIS Report on voting
45B/603/FDIS 45B/611/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

60846-1 © IEC:2009 – 7 –
A list of all parts of the IEC 60846 series can be found, under the general title Radiation
protection instrumentation – Ambient and/or directional dose equivalent (rate) meters and/or
monitors for beta, X and gamma radiation, on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date0 indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
– 8 – 60846-1 © IEC:2009
RADIATION PROTECTION INSTRUMENTATION –
AMBIENT AND/OR DIRECTIONAL DOSE EQUIVALENT (RATE)
METERS AND/OR MONITORS FOR BETA, X AND GAMMA RADIATION –

Part 1: Portable workplace and environmental meters and monitors

1 Scope and object
This part of the IEC 60846 series applies to dose equivalent (rate) meters and/or monitors for
the measurement of ambient dose equivalent (rate) and/or directional dose equivalent (rate)
from external beta, X and gamma radiation, as recommended in ICRU, Report 47.
NOTE 1 If both quantities, ambient dose equivalent and directional dose equivalent are meant, the term dose
equivalent may be used as an abbreviation.
This part of IEC 60846 series applies only to portable meters and monitors which are intended
to be used in both the workplace and the environment. It applies to devices that measure the
dose equivalent or dose equivalent rate from external beta and/or X and gamma radiation in
–1
the dose range between 0,01 μSv and 10 Sv and the dose rate range between 0,01 μSv h
–1
and 10 Sv h and in the energy ranges given in the following Table. All the energy values are
mean energies with respect to the prevailing dose quantity.
Table 1 – Measuring quantities and energy ranges covered by the standard
Energy range for Energy range for
Measuring quantity
Photon radiation Beta-particle radiation
H*(10) 12 keV to 10 MeV —
a
0,07 MeV to 1,2 MeV
H'(0,07) 8 keV to 250 keV almost equivalent to E from
max
225 keV to 3,54 MeV
a
For beta-particle radiation, an energy of 0,07 MeV is required to penetrate the dead
layer of skin of 0,07 mm (almost equivalent to 0,07 mm of ICRU tissue) nominal depth.
NOTE 2 Where a dose rate meter or monitor may be attached to a supplementary probe used to monitor conta-
mination, the relevant standard for that probe is IEC 60325.
If national legislation requires the use of different measuring quantities, for example, air
kerma or exposure, the standard may be used with the respective adjustments.
In this document, the expression "dose equivalent (rate)" is used when the provisions apply to
both the measurement of dose equivalent and the measurement of dose equivalent rate.
NOTE 3 It does not apply to medical radiology which is within the scope of technical committee 62, where the
conditions of radiation exposure may be extremely inhomogeneous, but precisely known.
NOTE 4 It does not apply to instruments intended to be worn by an individual for the purpose of estimating the
radiation dose received by that individual.
The object of this standard is to specify the design requirements and the performance
characteristics of dose equivalent (rate) meters intended for the determination of ambient
dose equivalent (rate) and directional dose equivalent (rate) as defined in ICRU Report 47.
Accordingly, this standard specifies:
a) general characteristics, the functions and performance characteristics of dose equivalent
(rate) meters;
60846-1 © IEC:2009 – 9 –
b) the methods of test to be used to determine compliance with the requirements of this
standard.
Some countries may wish to use this type of dose equivalent (rate) meter for measurements
in the framework of legal metrology.
2 Normative references
The following referenced documents are indispensable for the application of this document.
For dated references, only the edition cited applies. For undated references, the latest edition
of the referenced document (including any amendments) applies.
IEC 60050-151:2001, International Electrotechnical Vocabulary (IEV) – Part 151: Electrical
and magnetic devices
IEC 60050-393:2003, International Electrotechnical Vocabulary (IEV) – Part 393: Nuclear
instrumentation – Physical phenomena and basic concepts
IEC 60050-394:2007, International Electrotechnical Vocabulary (IEV) – Part 394: Nuclear
instrumentation – Instruments, systems, equipment and detectors
IEC 60068-2-31:2008, Environmental testing – Part 2-31: Tests – Test Ec: Rough handling
shocks, primarily for equipment-type specimens
IEC 60086-1:2006, Primary batteries – Part 1: General
IEC 60086-2:2006, Primary batteries – Part 2: Physical and electrical specifications
IEC 60359:2001, Electrical and electronic measurement equipment – Expression of
performance
IEC 60529:1989, Degrees of protection provided by enclosures (IP Code)
Amendment 1 (1999) 1F1F0F
IEC 61000-4-2:1995, Electromagnetic compatibility (EMC) – Part 4-2: Testing and
measurement techniques – Electrostatic discharge immunity test
Amendment 1 (1998)
Amendment 2 (2000) 2F2F1F
IEC 61000-4-3:2006, Electromagnetic compatibility (EMC) – Part 4-3: Testing and
measurement techniques – Radiated, radio-frequency, electromagnetic field immunity test
Amendment 1 (2007) 3F3F2F
IEC 61000-4-6:2008, Electromagnetic compatibility (EMC) – Part 4-6: Testing and
measurement techniques – Immunity to conducted disturbances, induced by radio-frequency
fields
IEC 61000-4-8:1993, Electromagnetic compatibility (EMC) – Part 4-8: Testing and
measurement techniques – Power frequency magnetic field immunity test
Amendment 1 (2000) 4F4F3F
—————————
1 There exists a consolidated edition (2.1) which includes IEC 60529 (1989) and its Amendment 1 (1999).

There exists a consolidated edition (1.2) which includes IEC 61000-4-2 (1995), its Amendment 1 (1998) and its
Amendment 2 (2000).
3 There exists a consolidated edition (3.1) which includes IEC 61000-4-3 (2006) and its Amendment 1 (2007).

4 There exists a consolidated edition (1.1) which includes IEC 61000-4-8 (1993) and its Amendment 1 (2000).

– 10 – 60846-1 © IEC:2009
IEC 61000-6-2:2005, Electromagnetic compatibility (EMC) – Part 6-2: Generic standards –
Immunity for industrial environ
...