SIST EN ISO 5171:2011

SLOVENSKI STANDARD
SIST EN ISO 5171:2011
01-april-2011
1DGRPHãþD
SIST EN 562:2003
Oprema za plamensko varjenje - Manometri za varjenje, rezanje in sorodne
postopke (ISO 5171:2009)
Gas welding equipment - Pressure gauges used in welding, cutting and allied processes
(ISO 5171:2009)
Gasschweißgeräte - Manometer für Schweißen, Schneiden und verwandte Prozesse
(ISO 5171:2009)
Matériel de soudage au gaz - Manomètres utilisés pour le soudage, le coupage et les
techniques connexes (ISO 5171:2009)
Ta slovenski standard je istoveten z: EN ISO 5171:2010
ICS:
17.100 Merjenje sile, teže in tlaka Measurement of force,
weight and pressure
25.160.30 Varilna oprema Welding equipment
SIST EN ISO 5171:2011 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 5171:2011

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SIST EN ISO 5171:2011


EUROPEAN STANDARD
EN ISO 5171

NORME EUROPÉENNE

EUROPÄISCHE NORM
March 2010
ICS 17.100; 25.160.30 Supersedes EN 562:2003
English Version
Gas welding equipment - Pressure gauges used in welding,
cutting and allied processes (ISO 5171:2009)
Matériel de soudage au gaz - Manomètres utilisés pour le Gasschweißgeräte - Manometer für Schweißen, Schneiden
soudage, le coupage et les techniques connexes (ISO und verwandte Prozesse (ISO 5171:2009)
5171:2009)
This European Standard was approved by CEN on 21 February 2010.

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, Croatia, 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: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 5171:2010: E
worldwide for CEN national Members.

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SIST EN ISO 5171:2011
EN ISO 5171:2010 (E)
Contents Page
Foreword .3

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SIST EN ISO 5171:2011
EN ISO 5171:2010 (E)
Foreword
The text of ISO 5171:2009 has been prepared by Technical Committee ISO/TC 44 “Welding and allied
processes” of the International Organization for Standardization (ISO) and has been taken over as EN ISO
5171:2010 by Technical Committee CEN/TC 121 “Welding” 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 September 2010, and conflicting national standards shall be
withdrawn at the latest by September 2010.
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.
This document supersedes EN 562:2003.
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, 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 5171:2009 has been approved by CEN as a EN ISO 5171:2010 without any modification.

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SIST EN ISO 5171:2011

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SIST EN ISO 5171:2011

INTERNATIONAL ISO
STANDARD 5171
Third edition
2009-05-15

Gas welding equipment — Pressure
gauges used in welding, cutting and
allied processes
Matériel de soudage au gaz — Manomètres utilisés pour le soudage, le
coupage et les techniques connexes




Reference number
ISO 5171:2009(E)
©
ISO 2009

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SIST EN ISO 5171:2011
ISO 5171:2009(E)
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ii © ISO 2009 – All rights reserved

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SIST EN ISO 5171:2011
ISO 5171:2009(E)
Contents Page
Foreword. iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions. 1
4 Pressure. 2
4.1 Unit of pressure . 2
4.2 Maximum scale reading . 2
4.3 Maximum pressure mark . 2
5 Manufacturing requirements . 3
5.1 Materials . 3
5.2 Design and dimensions. 3
6 Safety . 8
7 Marking . 8
8 Tests. 8
8.1 General. 8
8.2 Design and manufacturing standard . 9
8.3 Accuracy. 9
8.4 Torsion test . 10
8.5 Bend test. 10
8.6 Case vent test. 11
8.7 Overpressure test . 12
8.8 Flammability test. 12
Bibliography . 13

© ISO 2009 – All rights reserved iii

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SIST EN ISO 5171:2011
ISO 5171:2009(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 5171 was prepared by Technical Committee ISO/TC 44, Welding and allied processes,
Subcommittee SC 8, Equipment for gas welding, cutting and allied processes.
This third edition cancels and replaces the second edition (ISO 5171:1995), which has been technically
revised.
Requests for official interpretations of any aspect of this International Standard should be directed to the
Secretariat of ISO/TC 44/SC 8 via your national standards body. A complete listing of these bodies can be
found at http://www.iso.org/.

iv © ISO 2009 – All rights reserved

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SIST EN ISO 5171:2011
INTERNATIONAL STANDARD ISO 5171:2009(E)

Gas welding equipment — Pressure gauges used in welding,
cutting and allied processes
1 Scope
This International Standard specifies requirements for Bourdon-tube pressure gauges normally used with
compressed gas systems at pressures up to 30 MPa (300 bar) in welding, cutting and allied processes. It also
covers use for dissolved acetylene and for liquefied gases under pressure.
It does not cover gauges for acetylene in acetylene-manufacturing plants.
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 7-1, Pipe threads where pressure-tight joints are made on the threads — Part 1: Dimensions, tolerances
and designation
ISO 228-1, Pipe threads where pressure-tight joints are not made on the threads — Part 1: Dimensions,
tolerances and designation
ISO 497, Guide to the choice of series of preferred numbers and of series containing more rounded values of
preferred numbers
ISO 4589-2:1996, Plastics — Determination of burning behaviour by oxygen index — Part 2: Ambient-
temperature test
ISO 9539, Materials for equipment used in gas welding, cutting and allied processes
ISO 10102, Assembly tools for screws and nuts — Double-headed open-ended engineers' wrenches —
Length of wrenches and thickness of the heads
1)
ANSI/ASME B1.20.1, Pipe threads, general purpose (inch)
3 Terms and definitions
For the purposes of this document, the following definitions apply.
3.1
Bourdon-tube pressure gauges
device incorporating elastic tube with direct indication by pointer and graduated scale of the pressure being
measured

1) Published by and available from the American National Standards Institute (ANSI), 11 West 42nd Street, New York,
NY 10036.
© ISO 2009 – All rights reserved 1

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SIST EN ISO 5171:2011
ISO 5171:2009(E)
3.2
case
outer housing that contains the Bourdon tube and the movement
3.3
dial
plate or area on which the scale is marked
3.4
flange
circular extension of the case used for mounting
3.5
pointer
indicator whose position in relation to the scale indicates the value of the measured pressure
3.6
pointer stop
projection that stops the travel of the pointer
3.7
scale
array of marks, together with any associated figuring, in relation to which the position of the pointer is
ob
...