EN ISO 10270:2008
(Main)Corrosion of metals and alloys - Aqueous corrosion testing of zirconium alloys for use in nuclear power reactors (ISO 10270:1995, including Cor 1:1997)
Corrosion of metals and alloys - Aqueous corrosion testing of zirconium alloys for use in nuclear power reactors (ISO 10270:1995, including Cor 1:1997)
Specifies methods for the determination of mass gain and for the surface inspection of products of zirconium and its alloys when corrosion tested in water at 360 °C or in steam at or above 400 °C. Applicable to wrought products, castings and powder metallurgical products.
Korrosion von Metallen und Legierungen - Korrosionsprüfung in wässrigen Lösungen für in Kernreaktoren angewendete Zirkoniumlegierungen (ISO 10270:1995, Cor 1:1997 einschließlich)
Diese Internationale Norm legt fest:
a) die Bestimmung der Massezunahme;
b) die Untersuchung der Oberflächen von Produkten aus Zirkonium und Zirkoniumlegierungen nach einer Korrosionsprüfung in Wasser bei 360 °C oder in Dampf bei oder über 400 °C;
c) dass die Prüfungen in Dampf unter einem Druck von 10,3 MPa (1 500 psi) durchzuführen sind.
Diese Internationale Norm ist auf warm verformte Produkte, Gussteile, pulvermetallurgische Produkte und Schweißgut anwendbar.
Das beschriebene Verfahren wurde bereits vielfach zur Entwicklung neuer Legierungen und Wärmebehand¬lungsverfahren sowie zur Bewertung von Schweißverfahren genutzt und sollte nicht nur zur Beurteilung des Betriebsverhaltens angewendet werden, sondern stattdessen in seiner Gesamtheit, in dem Umfang, der zur Abnahmeprüfung des jeweiligen Produkts festgelegt ist.
Corrosion des métaux et alliages - Essais de corrosion aqueuse des alliages de zirconium utilisés dans les réacteurs nucléaires (ISO 10270:1995, Cor 1:1997 inclus)
La présente Norme internationale prescrit a) la détermination du gain en masse; b) le contrôle superficiel des produits en zirconium et en alliages de zirconium après essai de corrosion dans l'eau à 360°C et dans la vapeur à 400°C ou plus; c) que les essais à la vapeur doivent être réalisés à 10,3 MPa (1 500 psi). La présente Norme internationale est applicable aux produits corroyés, moulés, aux produits de la métallurgie des poudres et aux métaux d'apport pour le soudage. La méthode a beaucoup servi à mettre au point de nouveaux alliages et de nouvelles techniques de traitement thermique et à évaluer les techniques de soudage, et devrait être utilisée dans sa totalité comme moyen de réception des produits plutôt que comme moyen d'évaluation de leurs propriétés en service.
Korozija kovin in zlitin - Preskušanje vodne korozije cirkonijevih zlitin za uporabo v jedrskih reaktorjih (ISO 10270:1995)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2008
Korozija kovin in zlitin - Preskušanje vodne korozije cirkonijevih zlitin za uporabo
v jedrskih reaktorjih (ISO 10270:1995)
Corrosion of metals and alloys - Aqueous corrosion testing of zirconium alloys for use in
nuclear power reactors (ISO 10270:1995)
Korrosion von Metallen und Legierungen - Korrosionsprüfung in wässrigen Lösungen für
in Kernreaktoren angewendete Zirkoniumlegierungen (ISO 10270:1995)
Corrosion des métaux et alliages - Essais de corrosion aqueuse des alliages de
zirconium utilisés dans les réacteurs nucléaires (ISO 10270:1995)
Ta slovenski standard je istoveten z: EN ISO 10270:2008
ICS:
27.120.99 Drugi standardi v zvezi z Other standards related to
jedrsko energijo nuclear energy
77.060 Korozija kovin Corrosion of metals
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN ISO 10270
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2008
ICS 77.060; 27.120.10
English Version
Corrosion of metals and alloys - Aqueous corrosion testing of
zirconium alloys for use in nuclear power reactors (ISO
10270:1995/Cor 1:1997)
Corrosion des métaux et alliages - Essais de corrosion Korrosion von Metallen und Legierungen -
aqueuse des alliages de zirconium utilisés dans les Korrosionsprüfung in wässrigen Lösungen für in
réacteurs nucléaires (ISO 10270:1995/Cor 1:1997) Kernreaktoren angewendete Zirkoniumlegierungen (ISO
10270:1995/Cor 1:1997)
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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 10270:2008: E
worldwide for CEN national Members.
Contents Page
Foreword.3
Foreword
The text of ISO 10270:1995/Cor 1:1997 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
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 10270:1995/Cor 1:1997 has been approved by CEN as a EN ISO 10270:2008 without any
modification.
INTERNATIONAL
ISO
STANDARD
First edition
1995-12-01
Corrosion of metals and alloys - Aqueous
corrosion testing of zirconium alloys for
use in nuclear power reactors
Corrosion des mktaux et alliages - Essais de corrosion aqueuse des
alliages de zirconium utilish dans /es reacteurs nuclbaires
Reference number
ISO 10270: 1995(E)
ISO 10270:1995(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. Esch 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.
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.
International Standard ISO 10270 was prepared by Technical Committee
ISOnC 156, Corrosion of metals and alloys.
Annexes A and B of this International Standard are for information only.
0 ISO 1995
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronie or mechanical, inciuding photocopying and
microfilm, without Permission in writing from the publisher.
International Organization for Standardization
Case Postale 56 l CH-1 211 Geneve 20 l Switzerland
Printed in Switzerland
ii
ISO 10270:1995(E)
INTERNATIONAL STANDARD 0 ISO
Corrosion of metals and alloys - Aqueous corrosion
testing of zirconium alloys for use in nuclear power
reactors
- This International Standard may involve the use of hazardous materials, operations
WARNING
and equipment (see clause 9). lt is the responsibility of whoever uses this International Standard
to consult and establish appropriate safety and health practices and determine the applicability
of regulatory limitations Prior to use.
Members of IEC and ISO maintain registers of cur-
1 Scope
rently valid International Standards.
This International Standard specifies:
ISO 5813:1983, Water quality - Determination of
dissolved Oxygen - lodome tric me thod.
a) the determination of mass gain;
ISO 5814:1990, Water quality - Determination of
b) the surface inspection of products of zirconium
dissolved Oxygen - Electrochemical probe method.
and its alloys when corrosion tested in water at
360 “C or in steam at or above 400 “C;
3 Definitions
c) that the tests in steam shall be performed at
IO,3 MPa (1 500 Psi).
For the purposes of this Internatior
ial Standard, the
following definitions apply.
This International Standard is applicable to wrought
products, castings, powder metallurgy products and
3.1 etching: A process for removal of surface metal
weld metals.
by action of acids in water.
This method has been widely used in the develop-
3.2 control Coupons: Zirconium alloy specimens of
ment of new alloys, heat treating practices and for the
known Performance used to monitor the validity of
evaluation of welding techniques, and should be util-
the test.
ized in its entirety to the extent specified for a product
acceptance test, rather than merely a means of as-
3.3 high mass gain Coupons: Zirconium alloy
sessing Performance in Service.
specimens that have been specially heat-treated to
produce a mass gain higher than the maximum given
2 Normative references
in materials acceptance specifications and which are
used for verifying the severity of the test procedure.
The following Standards contain provisions which,
through reference in this text, constitute provisions
of this International Standard. At the time of publi- 4 Principle
cation, the editions indicated were valid. All Standards
are subject to revision, and Parties to agreements Spetimens of zirconium or its alloys are exposed to
based on this International Standard are encouraged high-pressure water or steam at elevated tempera-
tures for 72 h or 336 h. The corrosion is normally
to investigate the possibility of applying the most re-
measured by the gain in mass of the specimens and
cent editions of the Standards indicated below.
ISO 10270:1995(E)
by the appearance of an Oxide film on the specimen 7.7 Concentrated hydrofluoric acid (HF).
surfaces. In some instances, such as weld evaluation,
mass gain measurements are either impractical to
7.8 Concentrated nitric acid (HNO,).
make or are not required. When so specified, the ap-
pearance of the specimen shall be the sole criterion
for acceptance. The test pressure in steam shall be
7.9 Concentrated sulfuric acid (H2S04).
IO,3 MPa (1 500 Psi).
7.10 Control coupons, as defined in 3.2.
5 Significance
7.11 High mass gain coupons, as defined in 3.3.
normally tested after careful
51 Spetimens are
e;ch ing and rinsin . pecimens with as-manufactured
surfaces may a so be tested without further surface
8 Apparatus
removal.
8.1 General
econd m aterial clad on the
5.2 When tub ng with a s
moved
surface is to be tested, the cladding shall be re The apparatus shall consist of equipment for
Prior to the test.
a) etching the specimens when required;
6 Interference
b) measuring the specimens’, surface area and
mass, the water resistivity and pH, the test tem-
Autoclave loads that have one or more specimens
perature and pressure, the etch and rinse tem-
showing gross Oxidation may, by contamination of the
perature;
environment, affect results of other specimens in the
autoclave.
c) performing the water or steam corrosion tests at
elevated temperatures and pressures.
7 Reagents and materials
8.2 Etching equipment, comprising an acid bath, a
running water rinse and a deionized water rinse
During the test, unless otherwise stated, only re-
needed for proper metal removal and stain-free rins-
agents of recognized analytical grade and only water
ing. Polyethylene or polypropylene tanks are com-
as described in 7.4 or 7.5 shall be used.
monly used with a bottom feed for running water
rinses. Specimen hangers are generally made of type
71 . Argon gas, welding grade.
300 series stainless steel. When many specimens are
processed, a mechanical dipper for the etching pro-
cess is useful.
7.2 Nitrogen gas for purging or controlling Oxygen
content.
8.3 Autoclaves, constructed of type 300 series
7.3 Argon-hydrogen mixture for purging to re- stainless steel or nicke1 base alloys such as UNS
grade NO6600 or NO6690 and manufactured to con-
move Oxygen.
form to government regulations governing unfired
pressure vessels. The autoclave is fitted with devices
7.4 Grade A water - purified water having an
for measurement and control of pressure and tem-
electrical resistivity of not less than 1 Macrn at
perature, safety devices and venting valves. Control
25 “C as measured before the statt of the test.
Systems for pressure and temperature shall be ad-
equate to meet the requirements of this International
Standard. Sample holders and other internal access-
7.5 Grade B water - deionized or demineralized
ories are also constructed of type 300 or type 400
water having an electrical resistivity of not less than
series stainless steel, or nickel-base alloys such as
0,5 Mficrn at 25 “C. Grade A water tan be used in-
stead of grade B water. UNS grade NO6600 or N06690.
8.4 Specimen size measuring equipment, accu-
76 . Detergents and solvents for specimen clean-
ing including ethanol and acetone. rate to 50 Pm.
0 ISO ISO 10270:1995(E)
8.5 Analytical balance, accurate to 0,l mg, or dirt, loose oxides or rust, or an oil or grease film
on the water surface, internal surface, gasket or head
surfaces.
9 Hazards
11.1.2 Clean all new and reworked fixtures and jigs
9.1 The chemicals used in preparing specimens for
to be used in the autoclave and rinse in hot grade B
this test are hazardous. Detailed information on safe
water. Autoclave the fixtures and jigs for at least
handling of organic compounds, acids and products
1 day at 400 “C in steam at IO,3 MPa or, preferably,
of zirconium and its alloys should be obtained from
at 360 “C in water. Inspect the Parts for corrosion
competent sources.
products. If corrosion products are found or electrical
resistivity of the residual water after the test meas-
9.2 High-temperature, high-pressure autoclave op-
Ures less than 0,l Mficm, clean and autoclave the
eration must be in accordance with government
Parts again.
regulations and manufacturer’s instructions.
11.2 General requirements for autoclaves and Parts
9.3 Hydrogen gas used for addition to the autoclave
in continuous use for corrosion testing under this
steam supply must be handled in accordance with
International Standard are as follows.
guidelines for explosives and inflammable sub-
stances. All autoclaves, fixtures, Parts and jigs that have been
in continuous use and have shown satisfactory be-
haviour in Prior tests shall be rinsed with grade B
9.4 Cold water should not be added directly to the
water. The fixtures and jigs for corrosion products
autoclave vessel in Order to accelerate cooling upon
shall be inspected after each test and items showing
the completion of testing.
loose corrosion products
...
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