EN ISO 20785-3:2017
(Main)Dosimetry for exposures to cosmic radiation in civilian aircraft - Part 3: Measurements at aviation altitudes (ISO 20785-3:2015)
Dosimetry for exposures to cosmic radiation in civilian aircraft - Part 3: Measurements at aviation altitudes (ISO 20785-3:2015)
The following documents, in whole or in part, are normatively referenced in ISO 20785-3:2015 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.
ISO/IEC Guide 98‑1, Uncertainty of measurement ? Part 1: Introduction to the expression of uncertainty in measurement
ISO/IEC Guide 98‑3, Uncertainty of measurement ? Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)
ISO 20785‑1, Dosimetry for exposures to cosmic radiation in civilian aircraft ? Part 1: Conceptual basis for measurements
ISO 20785‑2, Dosimetry for exposures to cosmic radiation in civilian aircraft ? Part 2: Characterization of instrument response
Dosimetrie für die Belastung durch kosmische Strahlung in Zivilluftfahrzeugen - Teil 3: Messungen auf Flughöhen (ISO 20785-3:2015)
Dieser Teil von ISO 20785 dient als Grundlage für die Messung der Umgebungs-Äquivalentdosis in Flughöhen zur Bestimmung der Expositionen durch kosmische Strahlung in zivilen Luftfahrzeugen.
Dosimétrie pour les expositions au rayonnement cosmique à bord d'un avion civil - Partie 3: Mesurages à bord d'avions (ISO 20785-3:2015)
L'ISO 20785-3:2015 donne les principes de base permettant de mesurer l'équivalent de dose ambiant aux altitudes de vol pour l'évaluation de l'exposition au rayonnement cosmique à bord d'un avion.
Dozimetrija za merjenje izpostavljenosti kozmičnemu sevanju v civilnem letalskem prometu - 3. del: Meritve na višini letenja (ISO 20785-3:2015)
Standard ISO 20785-3:2015 se v celoti ali v delih normativno sklicuje na naslednje dokumente, ki so nepogrešljivi pri njegovi uporabi. Pri datiranih sklicevanjih se uporablja samo navedena izdaja. Pri nedatiranih sklicevanjih se uporablja zadnja izdaja referenčnega dokumenta (vključno z morebitnimi dopolnili).
Vodilo ISO/IEC 98‑1, Merilna negotovost – 1. del: Uvod v izražanje merilne negotovosti Vodilo ISO/IEC 98‑3, Merilna negotovost – 3. del: Vodilo za izražanje merilne negotovosti (GUM:1995) ISO 20785‑1, Dozimetrija za merjenje izpostavljenosti kozmičnemu sevanju v civilnem letalskem prometu – 1. del: Konceptualna osnova za meritve ISO 20785‑2, Dozimetrija za merjenje izpostavljenosti kozmičnemu sevanju v civilnem letalskem prometu – 2. del: Karakterizacija odziva instrumenta
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2017
'R]LPHWULMD]DPHUMHQMHL]SRVWDYOMHQRVWLNR]PLþQHPXVHYDQMXYFLYLOQHPOHWDOVNHP
SURPHWXGHO 0HULWYHQDYLãLQLOHWHQMD ,62
Dosimetry for exposures to cosmic radiation in civilian aircraft - Part 3: Measurements at
aviation altitudes (ISO 20785-3:2015)
Dosimétrie pour les expositions au rayonnement cosmique à bord d'un avion civil - Partie
3: Mesurages à bord d'avions (ISO 20785-3:2015)
Ta slovenski standard je istoveten z: EN ISO 20785-3:2017
ICS:
17.240 Merjenje sevanja Radiation measurements
49.020 Letala in vesoljska vozila na Aircraft and space vehicles in
splošno general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 20785-3
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2017
EUROPÄISCHE NORM
ICS 49.020; 13.280
English Version
Dosimetry for exposures to cosmic radiation in civilian
aircraft - Part 3: Measurements at aviation altitudes (ISO
20785-3:2015)
Dosimétrie pour les expositions au rayonnement
cosmique à bord d'un avion civil - Partie 3: Mesurages
à bord d'avions (ISO 20785-3:2015)
This European Standard was approved by CEN on 13 September 2017.
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 CEN-CENELEC 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 CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 20785-3:2017 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
The text of ISO 20785-3:2015 has been prepared by Technical Committee ISO/TC 85 “Nuclear energy,
nuclear technologies, and radiological protection” of the International Organization for Standardization
(ISO) and has been taken over as EN ISO 20785-3:2017 by Technical Committee CEN/TC 430 “Nuclear
energy, nuclear technologies, and radiological protection” the secretariat of which is held by AFNOR.
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 April 2018, and conflicting national standards shall be
withdrawn at the latest by April 2018.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 20785-3:2015 has been approved by CEN as EN ISO 20785-3:2017 without any
modification.
INTERNATIONAL ISO
STANDARD 20785-3
First edition
2015-11-15
Dosimetry for exposures to cosmic
radiation in civilian aircraft —
Part 3:
Measurements at aviation altitudes
Dosimétrie pour les expositions au rayonnement cosmique à bord
d’un avion civil —
Partie 3: Mesurages à bord d’avions
Reference number
ISO 20785-3:2015(E)
©
ISO 2015
ISO 20785-3:2015(E)
© ISO 2015, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2015 – All rights reserved
ISO 20785-3:2015(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Quantities and units . 1
3.2 Atmospheric radiation field . 4
4 General considerations . 6
4.1 General description of the cosmic radiation field in the atmosphere . 6
4.2 General considerations concerning the measurements . 8
4.2.1 General. 8
4.2.2 Selection of appropriate instruments . 8
4.2.3 Characterization of the responses of the instruments . 8
4.2.4 Measurements inside an aircraft . 8
4.2.5 Application of appropriate correction factors . 9
4.3 Safety and regulatory requirements for in-flight measurements . 9
5 Measurement at aviation altitude . 9
5.1 Parameters determining the dose rate. 9
5.1.1 Barometric altitude . 9
5.1.2 Geographic coordinates . 9
5.1.3 Solar activity .10
5.2 Possible influence quantities .10
5.2.1 General.10
5.2.2 Cabin air pressure .10
5.2.3 Cabin air temperature .10
5.2.4 Cabin air humidity .10
5.3 Specific considerations for active instruments .10
5.3.1 Power supply . .10
5.3.2 Vibrations and shocks .11
5.3.3 Electromagnetic interferences from the aircraft .11
5.4 Specific considerations for passive measurements .11
5.4.1 Security X-ray scanning .11
5.4.2 Background subtraction .11
6 Uncertainties .11
Annex A (informative) Representative particle fluence energy distributions for the cosmic
radiation field at flight altitudes for solar minimum and maximum conditions and
for minimum and maximum vertical cut-off rigidity .12
Bibliography .16
ISO 20785-3:2015(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 85, Nuclear energy, nuclear technologies, and
radiological protection, Subcommittee SC 2, Radiological
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.