SIST EN ISO 11844-3:2008
(Main)Corrosion of metals and alloys - Classification of indoor atmospheres with low corrosivity - Part 3: Classification and measurement of environmental parameters affecting indoor corrosivity (ISO 11844-3:2006)
Corrosion of metals and alloys - Classification of indoor atmospheres with low corrosivity - Part 3: Classification and measurement of environmental parameters affecting indoor corrosivity (ISO 11844-3:2006)
This part of ISO 11844 describes methods for measuring the environmental parameters used to classify the corrosivity of indoor atmospheres on metals and alloys.
Korrosion von Metallen und Legierungen - Einteilung der Korrosivität in Räumen mit geringer Korrosivität - Teil 3: Messung der Umgebungsparameter, die Korrosivität in Räumen beeinflussen (ISO 11844-3:2006)
Dieser Teil von ISO 11844 beschreibt Verfahren zum Messen der Umgebungsparameter, die dazu verwendet werden, die Korrosivität von Metallen und Legierungen in Innenräumen zu klassifizieren.
Corrosion des métaux et alliages - Classification de la corrosivité faible des atmospheres d'intérieur - Partie 3: Mesurage des parametres environnementaux affectant la corrosivité des atmospheres d'intérieur (ISO 11844-3:2006)
L'ISO 11844-3:2006 décrit des méthodes de mesurage des paramètres environnementaux utilisés pour la classification de la corrosivité des atmosphères d'intérieur.
Korozija kovin in zlitin - Klasifikacija notranjih atmosfer z nizko korozivnostjo - 3. del: Klasifikacija in merjenje okoljskih parametrov, ki vplivajo na korozivnost v zaprtih prostorih (ISO 11844-3:2006)
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Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 11844-3:2008
01-julij-2008
Korozija kovin in zlitin - Klasifikacija notranjih atmosfer z nizko korozivnostjo - 3.
del: Klasifikacija in merjenje okoljskih parametrov, ki vplivajo na korozivnost v
zaprtih prostorih (ISO 11844-3:2006)
Corrosion of metals and alloys - Classification of indoor atmospheres with low corrosivity
- Part 3: Classification and measurement of environmental parameters affecting indoor
corrosivity (ISO 11844-3:2006)
Corrosion des métaux et alliages - Classification de la corrosivité faible des atmospheres
d'intérieur - Partie 3: Mesurage des parametres environnementaux affectant la
corrosivité des atmospheres d'intérieur (ISO 11844-3:2006)
Ta slovenski standard je istoveten z: EN ISO 11844-3:2008
ICS:
77.060 Korozija kovin Corrosion of metals
SIST EN ISO 11844-3:2008 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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EUROPEAN STANDARD
EN ISO 11844-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2008
ICS 77.060
English Version
Corrosion of metals and alloys - Classification of low corrosivity
of indoor atmospheres - Part 3: Measurement of environmental
parameters affecting indoor corrosivity (ISO 11844-3:2006)
Corrosion des métaux et alliages - Classification de la Korrosion von Metallen und Legierungen - Einteilung der
corrosivité faible des atmosphères d'intérieur - Partie 3: Korrosivität in Räumen mit geringer Korrosivität - Teil 3:
Mesurage des paramètres environnementaux affectant la Messung der Umgebungsparameter, die Korrosivität in
corrosivité des atmosphères d'intérieur (ISO 11844-3:2006) Räumen beeinflussen (ISO 11844-3:2006)
This European Standard was approved by CEN on 21 March 2008.
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 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 Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11844-3:2008: E
worldwide for CEN national Members.
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EN ISO 11844-3:2008 (E)
Contents Page
Foreword.3
2
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EN ISO 11844-3:2008 (E)
Foreword
The text of ISO 11844-3:2006 has been prepared by Technical Committee ISO/TC 156 “Corrosion of metals
and alloys” of the International Organization for Standardization (ISO) and has been taken over as EN ISO
11844-3:2008 by Technical Committee CEN/TC 262 “Metallic and other inorganic coatings” the secretariat of
which is held by BSI.
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 October 2008, and conflicting national standards shall be withdrawn at
the latest by October 2008.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] 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, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 11844-3:2006 has been approved by CEN as a EN ISO 11844-3:2008 without any
modification.
3
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INTERNATIONAL ISO
STANDARD 11844-3
First edition
2006-05-15
Corrosion of metals and alloys —
Classification of low corrosivity of indoor
atmospheres —
Part 3:
Measurement of environmental
parameters affecting indoor corrosivity
Corrosion des métaux et alliages — Classification de la corrosivité
faible des atmosphères d'intérieur —
Partie 3: Mesurage des paramètres environnementaux affectant la
corrosivité des atmosphères d'intérieur
Reference number
ISO 11844-3:2006(E)
©
ISO 2006
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ISO 11844-3:2006(E)
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ii © ISO 2006 – All rights reserved
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ISO 11844-3:2006(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Principle. 1
4 Environmental parameters . 2
5 Humidity and temperature parameters. 2
5.1 Relative humidity . 2
5.2 Temperature . 2
5.3 Temperature–humidity complex . 2
6 Airborne gas contaminants . 3
6.1 Principle. 3
6.2 Placing of measuring equipment . 3
6.3 Measuring methods and duration. 3
7 Airborne particle contaminants. 6
7.1 Principle. 6
7.2 Volumetric measurements. 6
7.3 Measurement of particle deposits. 7
Annex A (informative) Reagents used for both passive and active samplers. 8
Bibliography . 10
© ISO 2006 – All rights reserved iii
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ISO 11844-3:2006(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 11844-3 was prepared by Technical Committee ISO/TC 156, Corrosion of metals and alloys.
ISO 11844 consists of the following parts, under the general title Corrosion of metals and alloys —
Classification of low corrosivity of indoor atmospheres:
⎯ Part 1: Determination and estimation of indoor corrosivity
⎯ Part 2: Determination of corrosion attack in indoor atmospheres
⎯ Part 3: Measurement of environmental parameters affecting indoor corrosivity
iv © ISO 2006 – All rights reserved
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ISO 11844-3:2006(E)
Introduction
This part of ISO 11844 deals with environmental parameters for the characterisation of indoor atmospheres
and methods of measurement.
The environmental parameters for the characterisation of indoor atmospheres include more airborne
contaminants than are normally used for the characterisation of the outdoor environment.
Measurement of environmental parameters is a way of characterising the corrosivity of the indoor atmosphere
and will always be required if it is necessary to consider measures for reducing the corrosivity.
© ISO 2006 – All rights reserved v
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INTERNATIONAL STANDARD ISO 11844-3:2006(E)
Corrosion of metals and alloys — Classification of low
corrosivity of indoor atmospheres —
Part 3:
Measurement of environmental parameters affecting indoor
corrosivity
1 Scope
This part of ISO 11844 describes methods for measuring the environmental parameters used to classify the
corrosivity of indoor atmospheres on metals and alloys.
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.
ISO 7708:1995, Air quality — Particle size fraction definitions for health-related sampling
ISO 9225:1992, Corrosion of metals and alloys — Corrosivity of atmospheres — Measurement of pollution
ISO 11844-1, Corrosion of metals and alloys — Classification of low corrosivity of indoor atmospheres —
Part 1: Determination and estimation of indoor corrosivity
EN 12341:1998, Air quality — Determination of the PM fraction of suspended particulate matter —
10
Reference method and field test procedure to demonstrate reference equivalence of measurement methods
3 Principle
Different combinations of parameters affect the corrosivity of indoor atmospheres. Knowledge about possible
sources of environmental effects must be obtained before decisions regarding the type of measurements
needed are taken. The characterisation of indoor atmospheric corrosivity using environmental parameters is
more complicated than measuring the corrosivity with metal specimens. However, in many cases,
measurement of environmental parameters can give a good indication of how to establish the corrosivity of an
environment and will, in combination with the information given in ISO 11844-1, give a good indication of the
corrosivity categories for the materials in the selected environment.
© ISO 2006 – All rights reserved 1
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ISO 11844-3:2006(E)
4 Environmental parameters
In indoor atmospheres, corrosion processes are characterised by a more complex group of parameters than in
outdoor atmospheres. In general, two groups of parameters should be measured:
⎯ humidity and temperature;
⎯ airborne contaminants, such as gases and particles.
Fluctuation in the temperature and humidity, particularly at higher humidity levels, may cause condensation on
cooler surfaces. The frequency and time of condensation is an important factor for indoor corrosion.
The corrosion effects from these groups of parameters are usually interdependent. A particular level of
humidity is needed before corrosion begins
...
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