EN 12198-3:2002

SLOVENSKI STANDARD
SIST EN 12198-3:2003
01-julij-2003
Varnost strojev - Ocenjevanje in zmanjševanje nevarnosti sevanja, ki ga oddajajo
stroji - 3. del: Zmanjševanje sevanja s filtriranjem ali zaslanjanjem
Safety of machinery - Assessment and reduction of risks arising from radiation emitted
by machinery - Part 3: Reduction of radiation by attenuation or screening
Sicherheit von Maschinen - Bewertung und Verminderung des Risikos der von
Maschinen emittierten Strahlung - Teil 3: Verminderung der Strahlung durch
Abschwächung oder Abschirmung
Sécurité des machines - Estimation et réduction des risques engendrés par les
rayonnements émis par les machines - Partie 3: Réduction du rayonnement par
atténuation ou par écrans
Ta slovenski standard je istoveten z: EN 12198-3:2002
ICS:
13.110 Varnost strojev Safety of machinery
13.280 Varstvo pred sevanjem Radiation protection
SIST EN 12198-3:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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EUROPEAN STANDARD
EN 12198-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2002
ICS 13.110; 13.280
English version
Safety of machinery - Assessment and reduction of risks arising
from radiation emitted by machinery - Part 3: Reduction of
radiation by attenuation or screening
Sécurité des machines - Estimation et réduction des Sicherheit von Maschinen - Bewertung und Verminderung
risques engendrés par les rayonnements émis par les des Risikos der von Maschinen emittierten Strahlung - Teil
machines - Partie 3: Réduction du rayonnement par 3: Verminderung der Strahlung durch Abschwächung oder
atténuation ou par écrans Abschirmung
This European Standard was approved by CEN on 16 October 2002.
CEN 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 Management Centre or to any CEN 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 CEN member into its own language and notified to the Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2002 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12198-3:2002 E
worldwide for CEN national Members.

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EN 12198-3:2002 (E)
Contents
Foreword.3
Introduction .4
1 Scope .4
2 Normative references .4
3 Terms and definitions.5
4 Classification of radiation.5
5 Procedure for reducing radiation emission levels by design .6
6 Strategy for design of shield .6
6.1 Design target .6
6.2 Characterization of all the radiation sources.7
6.3 Radiation fields, beam geometry access and enclosure.7
6.4 Review available of attenuating material.8
6.5 Assess of environmental conditions .9
6.6 Design requirements .9
6.7 Manufacture prototype .11
6.8 Determination of the effectiveness of the shielding .11
6.9 Compare with desired levels set in step 1 and if necessary, modify design .11
6.10 Prepare documentation for users .11
Annex ZA (informative) Relationship of this document with EC Directives.12
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EN 12198-3:2002 (E)
Foreword
This document EN 12198-3:2002 has been prepared by Technical Committee CEN /TC 114 "Safety of machinery",
the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an identical text or
by endorsement, at the latest by May 2003, and conflicting national standards shall be withdrawn at the latest by
May 2003.
This document has been prepared under a mandate given to CEN by the European Commission and the European
Free Trade Association, and supports essential requirements of EC Directive(s).
For relationship with EC Directives, see informative annex ZA, which is an integral part of this document.
This European Standard deals with the essential requirement "Radiation" (see EN 292-2:1991, annex A,
paragraph 1.5.10).
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard : Austria, Belgium, Czech Republic, Denmark, Finland,
France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain,
Sweden, Switzerland and the United Kingdom.
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EN 12198-3:2002 (E)
Introduction
Machinery supplied by electrical power or containing radiation sources may emit radiation or generate electric
and/or magnetic fields. The radiation emissions will vary in frequency and magnitude.
It does not deal with other strategies concerning reduction of radiation risk by substitution with a smaller source,
increasing the distance or reducing exposure time.
This document is a type B standard as stated in EN 1070.
The provisions of this document may be supplemented or modified by a type C standard.
NOTE For machines which are covered by the scope of a type C standard and which have been designed and built
according to the provisions of that standard, the provisions of that type C standard take precedence over the provisions of this
type B standard.
1 Scope
The purpose of this European standard is to provide means to enable manufacturers of machinery concerned by a
radiation hazard to design and manufacture efficient safeguards against radiations.
Specific technical details of the design of shields for the different types of radiation and machines will be provided
in other standards.
This European standard applies to machinery as defined by EN 292.
Part 1 of this standard contains the general principles of risk assessment of radiation emission by machinery.
Details of the measurement of the radiation emission are given in Part 2 of this standard.
This standard deals with a design strategy for reducing the radiation flux by attenuation or screening.
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 amendments).
EN 292-1:1991, Safety of machinery - Basic concepts, general principles for design - Part 1: Basic terminology,
methodology.
EN 292-2:1991, Safety of machinery — Basic concepts, general principles for design — Part 2: Technical
principles and specifications.
EN 294:1992, Safety of machinery - Safety distance to prevent danger zones being reached by the upper limbs.
EN 953:1997, Safety of machinery – Guards - General requirements for the design and construction of fixed and
movable guards.
EN 1050:1996, Safety of machinery - Principles for risk assessment.
EN 1070:1998, Safety of machinery – Terminology.
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EN 12198-3:2002 (E)
EN 1088:1995, Safety of machinery - Interlocking devices associated with guards - Principles for design and
selection.
EN 12198-1:2000, Safety of machinery – Assessment and reduction of risks arising from radiation emitted by
machinery – Part 1: General principles.
EN 12198-2:2002, Safety of machinery – Assessment and reduction of risks arising from radiation emitted by
machinery – Part 2 : Radiation emission measurement procedure.
IEC 60050-111:1996, International Electrotechnical Vocabulary - Chapter 111: Physics and chemistry.
IEC 60050-121:1998, International Electrotechnical Vocabulary - Part 121: Electromagnetism.
IEC 60050-161:1990, International Electrotechnical Vocabulary - Chapter 161: Electromagnetic compatibility.
IEC 60050-881:1983, International Electrotechnical Vocabulary – Chapter 881 : Radiology and radiological physics.
3 Terms and definitions
For the purposes of this European Standard, the terms and definitions given in EN 1070:1998 and the following
apply. Additional definitions specifically needed for this standard are contained in EN 12198-1:2000.
The terms and definitions given in IEC 60050-111:1996, IEC 60050-121:1998, IEC 60050-161:1990 and IEC
60050-881:1983, are also applicable.
3.1
shield (general definition)
component designed to reduce, select or absorb radiations. The purpose of the component may be for radiation
protection or in order to select particular radiations
NOTE Shields are also know as attenuators, screens or filters .
3.2
protection shield
shield used for the radiation protection of people and/or equipment
3.3
selective shield
shield used to filter the radiations, selecting their kind or their energy
3.4
shadow shield
shield arranged in such a way that the radiation source is not totally enclosed, but which prevents free passage of
radiation in certain directions
4 Classification of radiation
Classification of radiation is given in clause 4 of EN 12198-1:2000.
Machinery shall be so designed and constructed that any emission of radiation is limited to the extent necessary for
its operation and that the effects on exposed persons are non-existent or reduced to non-dangerous proportions
(See EN 292-2:1991, annex A).
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EN 12198-3:2002 (E)
5 Procedure for reducing radiation emission levels by design
The pr
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