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IEC 62302:2007

(Main)

Radiation protection instrumentation - Equipment for sampling and monitoring radioactive noble gases

Radiation protection instrumentation - Equipment for sampling and monitoring radioactive noble gases

Is applicable to equipment used for sampling and continuous measurement of radioactive noble gases in the workplace, in gaseous effluents discharged into the environment as well as in the environment itself. Monitoring by definition is the process of continuous and real-time measurement. The processes of sampling or taking samples for retrospective laboratory analysis are covered as well.

Instrumentation pour la radioprotection - Matériel pour le prélèvement et la surveillance des gaz rares radioactifs

Est applicable au matériel utilisé pour les mesures par prélèvement ou en continu des gaz rares radioactifs sur les lieux de travail, dans les effluents gazeux rejetés dans l'environnement et dans l'environnement lui-même. Par définition, surveiller est un processus de mesure permanent et en temps réel. Les procédés de prélèvement ou d'échantillonnage pour des analyses à postériori en laboratoire sont également couverts dans cette norme.

General Information

Status
Published
Publication Date
18-Sep-2007
ICS
01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
13.280 - Radiation protection
Technical Committee
SC 45B - Radiation protection instrumentation
Drafting Committee
WG 13 - TC 45/SC 45B/WG 13
Current Stage
PPUB - Publication issued
Start Date
15-Oct-2007
Completion Date
19-Sep-2007
Ref Project

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IEC 62302:2007 - Radiation protection instrumentation - Equipment for sampling and monitoring radioactive noble gases
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IEC 62302
Edition 1.0 2007-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Radiation protection instrumentation – Equipment for sampling and monitoring
radioactive noble gases
Instrumentation pour la radioprotection – Matériel pour le prélèvement et la
surveillance des gaz rares radioactifs

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IEC 62302
Edition 1.0 2007-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Radiation protection instrumentation – Equipment for sampling and monitoring
radioactive noble gases
Instrumentation pour la radioprotection – Matériel pour le prélèvement et la
surveillance des gaz rares radioactifs

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
X
CODE PRIX
ICS 13.280 ISBN 2-8318-9315-1
– 2 – 62302 © IEC:2007
CONTENTS
FOREWORD.6

1 Scope and object.8
2 Normative references .8
3 Terms and definitions .9
4 Classification of noble gas monitoring equipment .13
4.1 General Design Considerations .14
4.1.1 Methods of detection .14
4.1.2 Ease of Decontamination.14
4.1.3 Considerations for explosive mixtures .14
4.1.4 Corrosion resistance.14
4.1.5 Reliability .14
4.2 Capability for operational testing .14
4.3 Adjustment and maintenance facilities.15
4.4 Acoustic noise level of the assembly .15
4.5 Electromagnetic interference .15
4.6 Mechanical shock.15
4.7 Measurement characteristics .15
5 Equipment components .16
5.1 General .16
5.2 Sampling assembly .16
5.2.1 Sampling and exhaust pipes .16
5.2.2 Inlet filter or water trap .16
5.2.3 Collection medium .17
5.2.4 Air pump.17
5.2.5 Flow-related control and measurement .17
5.3 Detection assembly .18
5.3.1 Radiation detector .18
5.3.2 Compensation detection .18
5.4 Control assembly.18
5.5 Indication facilities.18
5.6 Alarm assembly.19
5.6.1 Alarms.19
5.6.2 Alarm test facilities .19
5.6.3 Alarm reset features .19
5.6.4 Alarm self-diagnosis .19
5.6.5 Alarm display.19
5.7 Check and “keep alive” sources.20
5.8 Ambient background shielding or compensation devices .20
5.9 Batteries.20
6 Test conditions .20
6.1 General test procedures .20
6.2 Tests performed under standard test conditions for normal operation
condition .20
6.3 Tests performed with variation of influence quantities.20
6.4 Tests performed under test conditions for emergency conditions .21

62302 © IEC:2007 – 3 –
6.5 Types of sources.21
6.5.1 Reference source .21
6.5.2 Solid sources.21
6.6 Metrological confirmation system during tests .21
6.6.1 Uncertainty of measurement .21
6.6.2 Statistical fluctuations.22
7 Radiation detection performance tests.22
7.1 Reference response .22
7.1.1 Requirements .22
7.1.2 Test to be carried out .22
7.1.3 Test method with gaseous sources.22
7.1.4 Relative response with solid sources .22
7.1.5 Test with an electronic signal generator.22
7.2 Linearity .23
7.2.1 Test source .23
7.2.2 Requirements .23
7.2.3 Test method .23
7.3 Response to radioactive gases other than radioactive noble gases .23
7.3.1 Requirements .23
7.3.2 Test method .23
7.4 Response time .23
7.4.1 Requirements .23
7.4.2 Test method .23
7.5 Response to ambient gamma radiation.24
7.5.1 General .24
7.5.2 Requirements .24
7.5.3 Test method .24
7.6 Response to neutron radiation.25
7.6.1 Response to neutron radiation.25
7.7 Overload test.25
7.7.1 Requirements .25
7.7.2 Test method .25
7.8 Statistical fluctuations .25
7.8.1 Requirements .25
7.8.2 Test method .25
7.9 Zero stability .26
7.9.1 Stability of zero indication with time.26
7.9.2 Stabili
...

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