IEC 62706:2012

IEC 62706


®


Edition 1.0 2012-12



INTERNATIONAL



STANDARD



NORME
INTERNATIONALE


Radiation protection instrumentation – Environmental, electromagnetic and
mechanical performance requirements

Instrumentation pour la radioprotection – Exigences de performances
environnementales, électromagnétiques et mécaniques


IEC 62706:2012

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IEC 62706



®



Edition 1.0 2012-12







INTERNATIONAL





STANDARD







NORME



INTERNATIONALE











Radiation protection instrumentation – Environmental, electromagnetic and

mechanical performance requirements




Instrumentation pour la radioprotection – Exigences de performances

environnementales, électromagnétiques et mécaniques
















INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE

PRICE CODE
INTERNATIONALE

CODE PRIX S


ICS 13.280 ISBN 978-2-83220-552-5



Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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– 2 – 62706 © IEC:2012



CONTENTS

FOREWORD . 4


INTRODUCTION . 6

1 Scope and object . 7

2 Normative references . 7


3 Terms and definitions, abbreviations, quantities and units . 8

3.1 Terms and definitions . 8

3.2 Abbreviations . 9

3.3 Quantities and units . 9
4 General requirements . 9
5 General test procedure . 9
5.1 Nature of tests . 9
5.2 Reference conditions and standard test conditions . 9
5.3 Use of this standard . 9
5.3.1 General . 9
5.3.2 Requirements for influence quantities . 10
5.3.3 Environmental requirements . 10
5.3.4 Mechanical requirements . 10
5.3.5 Electromagnetic requirements . 11
5.3.6 Functionality test . 11
5.3.7 Additional requirements and test methods . 11
6 Radiation detection requirements . 11
7 Environmental requirements . 11
7.1 General . 11
7.2 Ambient temperature . 12
7.2.1 Requirements . 12
7.2.2 Method of test . 12
7.3 Temperature shock . 12
7.3.1 Requirements . 12
7.3.2 Method of test . 12
7.4 Relative humidity . 13
7.4.1 Requirements . 13
7.4.2 Method of test . 13

7.5 Low/high temperature start-up . 13
7.5.1 Requirements . 13
7.5.2 Method of test . 13
7.6 IP (degree of protection) classification . 13
7.6.1 Requirements . 13
7.6.2 Method of test . 14
8 Mechanical requirements . 14
8.1 General . 14
8.2 Drop . 14
8.2.1 Requirements . 14
8.2.2 Method of test . 14
8.3 Vibration test . 14
8.3.1 Handheld, body worn, portable, and transportable requirements . 14
8.3.2 Installed requirements . 15

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62706 © IEC:2012 – 3 –


8.3.3 Mobile (ground vehicle mounted) requirements . 15

8.4 Microphonics/impact . 15

8.4.1 Handheld and body worn requirements . 15

8.4.2 Requirements – All others . 15

8.4.3 Method of test . 16

8.5 Mechanical shock . 16

8.5.1 Requirements . 16

8.5.2 Method of test . 16

9 Electromagnetic requirements . 16


9.1 General . 16
9.2 Electrostatic discharge . 16
9.2.1 Requirements – all instrument types . 16
9.2.2 Method of test (IEC 61000-4-2, severity level 3) . 16
9.3 Radio frequency immunity . 17
9.3.1 Requirements – Body worn (IEC 61000-4-3, severity level x) . 17
9.3.2 Requirements – all other types (IEC 61000-4-3, severity level 3) . 17
9.3.3 Method of test . 17
9.4 Radiated emissions . 17
9.4.1 Requirements . 17
9.4.2 Test method . 17
9.5 Magnetic fields . 18
9.5.1 Requirements (IEC 61000-4-8, continuous field severity level 5) . 18
9.5.2 Method of test . 18
9.6 AC line powered equipment requirements. 18
9.6.1 Voltage and frequency fluctuations . 18
9.6.2 Immunity from conducted RF . 18
9.6.3 Surges and ring waves . 19
10 Documentation . 19
Bibliography . 21

Table 1 – Reference and standard test conditions . 19
Table 2 – Field use temperature and IP requirements . 19
Table 3 – Mechanical requirements. 20
Table 4 – Electromagnetic requirements . 20

Table 5 – Emission frequency range . 20

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INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________




RADIATION PROTECTION INSTRUMENTATION –

ENVIRONMENTAL, ELECTROMAGNETIC AND

MECHANICAL PERFORMANCE REQUIREMENTS



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
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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 62706 has been prepared by subcommittee 45B: Radiation
protection instrumentation, of IEC technical committee 45: Nuclear instrumentation.
The text of this standard is based on the following documents:
FDIS Report on voting
45B/744/FDIS 45B/753/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.

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62706 © IEC:2012 – 5 –


The committee has decided that the contents of this publication will remain unchanged until

the stability date 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.

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INTRODUCTION


Radiation protection instrumentation including those instruments used for the detection and

identification of radioactive material and radionuclides are used in many different

environments. They are typically exposed to different temperatures, humidity levels,

electromagnetic fields, and mechanical stresses such as shock and vibration during normal

use. Radiation instrumentation may be worn, hand carried, mounted to a vehicle, transported

from location to location, or installed. All of the conditions associated with these very different

uses should be considered when developing instrument-specific requirements. In order to

ensure consistency between standards, this environmental, electromagnetic, and mechanical

performance requirements standard was established.

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62706 © IEC:2012 – 7 –


RADIATION PROTECTION INSTRUMENTATION –

ENVIRONMENTAL, ELECTROMAGNETIC AND

MECHANICAL PERFORMANCE REQUIREMENTS








1 Scope and object


This International Standard establishes the environmental, mechanical and electromagnetic

performance requirements and methods of test for radiation protection instrumentation.
The object of this standard is to define, for design and test purposes, the environments in
which radiation protection instrumentation may be exposed. The environments addressed by
this standard are applicable to body-worn (e.g., personal radiation detectors, backpack, and
dosemeters), hand carried, portable and transportable, mobile, or installed instrumentation.
2 Normative references
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.
IEC 60050-393, 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 60529, Degrees of protection provided by enclosures (IP code)
IEC 60721-3-5, Classification of environmental conditions – Part 3: Classification of groups of
environmental parameters and their severities – Section 5: Ground vehicle installations
IEC 61000-4-2, Electromagnetic compatibility (EMC) – Part 4-2: Testing and masurement
techniques – Electrostatic discharge immunity test
IEC 61000-4-3, Electromagnetic compatibility (EMC) – Part 4-3: Testing and measurement

techniques – Radiated, radio-frequency, electromagnetic field immunity test
IEC 61000-4-5, Electromagnetic compatibility (EMC) – Part 4-5: Testing and measurement
techniques – Surge immunity test
IEC 61000-4-6, Electromagnetic compatibility (EMC) – Part 4-6: Testing and measurement
techniques – Immunity to conducted disturbances, induced by radio-frequency fields
IEC 61000-4-8, Electromagnetic compatibility (EMC) – Part 4-8: Testing and measurement
techniques – Power frequency magnetic field immunity test
IEC 61000-4-12, Electromagnetic compatibility (EMC) – Part 4-12: Testing and measurement
techniques – Ring wave immunity test

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3 Terms and definitions, abbreviations, quantities and units


3.1 Terms and definitions


For the purposes of this document, the following terms and definitions, as well as those given

in IEC 60050-393 and IEC 60050-394 apply.


3.1.1

body-worn instrument

radiation instruments that are worn on the trunk or the extremities of the body while being

used

3.1.2
handheld or portable instrument
radiation instruments that are used while being held
3.1.3
influence quantity
quantity that is not the measurand but that affects the result of the measurement
Note 1 to entry: For example, temperature of a micrometer used to measure length.
[SOURCE: IEC 60050-394:2007, 394-40-27; GUM B.2.10]
3.1.4
influence quantity of type F
influence quantity whose effect on the indicated value is a change in response
Note 1 to entry: Examples are changes in the indicated value due to radiation energy or angle of radiation
incidence.
Note 2 to entry: ”F” stands for factor: The indication due to radiation is multiplied by a factor due to the influence
quantity (e.g., the indication due to Co-60 radiation is 1,2 times that due to Cs-137 radiation).
3.1.5
influence quantity of type S
influence quantity whose effect on the indicated value is a deviation independent of the
indicated value
Note 1 to entry: Examples include changes, either positive or negative, in the indicated value from exposure to an
electromagnetic disturbance or microphonics.
Note 2 to entry: “S” stands for sum: The indication is the sum of the indication due to radiation and due to the
influence quantity, e.g., electromagnetic disturbance.

3.1.6
installed instrument
radiation instruments that are permanently mounted at a location for use
3.1.7
transportable instrument
radiation instruments that may be moved to different locations and do not operate while in
transit
3.1.8
mobile instrument
radiation instruments that are mounted to moving platforms and operate while in motion

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62706 © IEC:2012 – 9 –


3.2 Abbreviations

ESD electrostatic discharge

RF radio frequency

EM Electromagnetic

DC direct current

AC alternating current


3.3 Quantities and units

1

In the present standard, units of the International System (SI) are used . The definitions of
radiation quantities are given in IEC 60050-393 and IEC 60050-394. The corresponding old

units (non SI) are indicated in brackets.

Nevertheless, the following units may also be used:
–19
– for energy: electron-volt (symbol: eV), 1 eV = 1,602 × 10 J;
– for time: years (symbol: y), days (symbol: d), hours (symbol: h), minutes (symbol: min).
Multiples and submultiples of SI units will be used, when practicable, according to the SI
system.
4 General requirements
This standard does not define the general requirements for systems or devices used to
perform individual tests. General requirements are addressed in the instrument-specific
standard.
5 General test procedure
5.1 Nature of tests
This standard provides the environmental, mechanical, and electromagnetic performance
requirements and methods of tests for radiation detection systems. The tests are based on
existing IEC standards for electronic equipment and field-use experience.
For a given instrument type, the project leader may use requirements from other instrument
types.
5.2 Reference conditions and standard test conditions
Table 1 contains the reference and standard test conditions. Reference conditions are those

conditions to which the performances of the device are valid and standard test conditions
indicate the necessary tolerances in practical testing.
5.3 Use of this standard
5.3.1 General
This standard provides the environmental, mechanical, and electromagnetic performance
requirements and methods of tests when developing new or revising existing standards.
These requirements should be established based on the type of instrument (e.g., portable)
and its expected use (e.g., indoor or outdoor) as defined in Clause 3.
___________
th
1
International Bureau of Weights and Measures: The International System of Units, 8 edition, 2006.

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5.3.2 Requirements for influence quantities


5.3.2.1 General

Unless stated otherwise the functional requirements established in an instrument-specific
standard shall be given in terms of change in functionality (e.g., alarm activation, loss of

display, etc.) or indicated reading (e.g., ±15 % of the average reading obtained in standard

conditions).


The instrument specific standard should indicate whether an influence quantity usually acts as

type S or F. The radiation level chosen for each test should be based on the type of influence

quantity as described in 5.3.2.2 and 5.3.2.3.

5.3.2.2 Tests for influence quantities of type S
These tests should be performed at an ambient dose equivalent (rate) that is low enough to
ensure that an effect from the test is measureable (e.g., 10 times the lower limit of the
effective range of measurement but not zero in order to be able to detect a reduction in the
indication).
5.3.2.3 Tests for influence quantities of type F
These tests may be performed at any ambient dose equivalent (rate). The ambient dose
equivalent (rate) chosen should be high enough to ensure that statistical fluctuations are
small enough to demonstrate whether the requirement is met (e.g., at least 10 times above
the lower limit of the measuring range).
5.3.3 Environmental requirements
Environmental requirements apply to different types of radiation systems based on their
design and expected use. The environmental requirements that apply to a specific instrument
are addressed by that instrument-specific standard. As a minimum ambient temperature and
relative humidity tests are required for all types of radiation detection systems. Other
environmental conditions shall be established as deemed appropriate by the project leader.
The following example text could be used in an individual standard as reference to this
standard: "The equipment shall undergo the tests specified in IEC 62706 "Environmental,
mechanical, and electromagnetic requirements for radiation protection instrumentation"
concerning the ambient temperature, relative humidity, and other metrological requirements
for [insert instrument designation here, i.e., body-worn, handheld, installed, etc.]
instrumentation.” It is advisable not to insert the year
...