Irish Standard

I.S. EN 13231-3:2012

Railway applications - Track - Acceptance

of works - Part 3: Acceptance of
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reprofiling rails in track

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I.S. xxx: Irish Standard – national specification based on the consensus of an expert panel and
subject to public consultation.

S.R. xxx: Standard Recommendation - recommendation based on the consensus of an expert

panel and subject to public consultation.

SWiFT xxx: A rapidly developed recommendatory document based on the consensus of the
participants of an NSAI workshop.

EN 13231-3:2006

EN 13231-3:2012 9 February, 2012

This document was published

under the authority of the NSAI 93.100
and comes into effect on:
9 February, 2012

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Údarás um Chaighdeáin Náisiúnta na hÉireann

 I.S. EN 13231-3:2012

EUROPEAN STANDARD EN 13231-3

NORME EUROPÉENNE
EUROPÄISCHE NORM January 2012

ICS 93.100 Supersedes EN 13231-3:2006

English Version

Railway applications - Track - Acceptance of works - Part 3:

Acceptance of reprofiling rails in track

Applications ferroviaires - Voie - Réception des travaux - Bahnanwendungen - Oberbau - Abnahme von Arbeiten -
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Partie 3: Critères de réception des travaux de reprofilage Teil 3: Abnahme von reprofilierten Schienen im Gleis
des rails en voie

This European Standard was approved by CEN on 20 August 2011.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION

COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13231-3:2012: E
worldwide for CEN national Members.
 I.S. EN 13231-3:2012
EN 13231-3:2012 (E)

Contents Page

Foreword ..............................................................................................................................................................4
1 Scope ......................................................................................................................................................5
2 Normative references ............................................................................................................................5
3 Terms and definitions ...........................................................................................................................5
4 Longitudinal profile ...............................................................................................................................8
4.1 Principle ..................................................................................................................................................8
4.2 Measurements required ........................................................................................................................8
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4.3 Acceptance criteria for longitudinal profile ........................................................................................9

4.3.1 General ....................................................................................................................................................9
4.3.2 Peak-to-peak value ................................................................................................................................9
5 Transverse profile ............................................................................................................................... 10
5.1 Principle ............................................................................................................................................... 10
5.2 Measurements required ..................................................................................................................... 10
5.3 Acceptance criteria for the transverse profile ................................................................................. 11
6 Metal removal ...................................................................................................................................... 11
6.1 Measurements required ..................................................................................................................... 11
6.2 Acceptance criteria for metal removal.............................................................................................. 12
7 Surface roughness ............................................................................................................................. 12
8 Visual appearance: acceptance criteria ........................................................................................... 12
Annex A (normative) Procedures to verify reference instruments ............................................................. 15
A.1 Longitudinal profile ............................................................................................................................ 15
A.1.1 Principle ............................................................................................................................................... 15
A.1.2 Calibration beam ................................................................................................................................. 15
A.1.3 Coordinate Measuring Machine (CMM) ............................................................................................ 16
A.1.4 Measurement of the calibration beam using the CMM ................................................................... 16
A.1.5 Data analysis ....................................................................................................................................... 16
A.1.6 Measurement of the calibration beam using the test instrument .................................................. 16
A.1.7 Data analysis using the test instrument ........................................................................................... 16
A.1.8 Acceptance criteria for reference instruments ................................................................................ 16
A.1.9 Test report ........................................................................................................................................... 16
A.2 Transverse profile ............................................................................................................................... 17
A.2.1 Principle ............................................................................................................................................... 17
A.2.2 Calibration jig ...................................................................................................................................... 17
A.2.3 Coordinate measuring machine (CMM) ............................................................................................ 17
A.2.4 Calibration jig verification .................................................................................................................. 17
A.2.5 Rail measurements using the test instrument................................................................................. 18
A.2.6 Acceptance of test instruments ........................................................................................................ 18
A.2.7 Test report ........................................................................................................................................... 18
Annex B (normative) Procedures to demonstrate correlation of approved and reference
instruments ......................................................................................................................................... 21
B.1 Longitudinal profile ............................................................................................................................ 21
B.1.1 Principle ............................................................................................................................................... 21
B.1.2 Characteristics of the test sites ........................................................................................................ 21
B.1.3 Measurements required ..................................................................................................................... 21
B.1.4 Data analysis ....................................................................................................................................... 22
B.1.5 Acceptance criteria for approved instruments ................................................................................ 22
B.1.6 Test report ........................................................................................................................................... 23

2
 I.S. EN 13231-3:2012
EN 13231-3:2012 (E)

B.2 Transverse profile ............................................................................................................................... 23

B.2.1 Principle................................................................................................................................................ 23
B.2.2 Characteristics of the test sites ......................................................................................................... 23
B.2.3 Measurements required ...................................................................................................................... 24
B.2.4 Data analysis ........................................................................................................................................ 24
B.2.5 Acceptance criteria for approved instruments ................................................................................ 28
B.2.6 Test report ............................................................................................................................................ 28
Annex C (normative) Calculation of peak to peak values ............................................................................. 29
C.1 Calculation of the percentage of exceedances ................................................................................ 29
Annex D (normative) Method of periodic verification ................................................................................... 30
D.1 Method of periodic verification of approved instruments............................................................... 30
D.1.1 Principle................................................................................................................................................ 30
D.1.2 Longitudinal profile ............................................................................................................................. 30
D.1.3 Static verifications ............................................................................................................................... 30
D.1.4 Dynamic verification ........................................................................................................................... 31
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D.2 Transverse profile ............................................................................................................................... 32

D.2.1 Principle................................................................................................................................................ 32
D.2.2 Static verifications ............................................................................................................................... 32
D.2.3 Dynamic verification ........................................................................................................................... 33
D.2.4 Report ................................................................................................................................................... 34
Annex E (informative) Example of acceptance documentation for rail reprofiling work .......................... 37
Bibliography ...................................................................................................................................................... 39

3
 I.S. EN 13231-3:2012
EN 13231-3:2012 (E)

Foreword
This document (EN 13231-3:2012) has been prepared by Technical Committee CEN/TC 256 “Railway
applications”, 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 July 2012, and conflicting national standards shall be withdrawn at the
latest by July 2012.

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.
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This document supersedes EN 13231-3:2006.

The changes with respect to the previous document (EN 13231-3:2006) include:

a) a reduced number of acceptance criteria for the longitudinal profile (only one instead of three) in line with
current European practice;

b) reference points for interpretation of transverse profiles corresponding with the gauge recording points;

c) simplified methods to prove measurement systems (for reference and approved instruments as described
in Annexes A and B);

d) introduction of a procedure to routinely demonstrate acceptability of approached instruments in Annex D;

e) integration of normative Annexes A, B, C and D.

This European Standard is one of the series EN 13231 "Railway applications — Track — Acceptance of
works" as listed below:

 Part 1: Works on ballasted track — Plain line, switches and crossings

 Part 3: Acceptance of reprofiling rails in track

 Part 4: Acceptance of reprofiling rails in switches and crossings

NOTE Part 2 does not exist in this series.

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, Turkey and the United Kingdom.

4
 I.S. EN 13231-3:2012
EN 13231-3:2012 (E)

1 Scope
This European Standard specifies the technical requirements and the measurements to be made for the
acceptance of work to reprofile longitudinally and/or transversely the heads of railway rails. For acceptance
purposes, two classes of longitudinal profile and three classes of transverse profile tolerance are defined.

Annexes describe procedures to verify reference instruments to be used for these measurements as well as
methods to approve non-reference instruments to be used for measurements.

This European Standard applies to reprofiled vignole railway rails 46 kg/m and above.

It does not apply for acoustic rail reprofiling.

A form of acceptance documentation that may be used is given in Annex E.

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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.

EN ISO 3274, Geometrical product specifications (GPS) — Surface texture: Profile method — Nominal
characteristics of contact (stylus) instruments (ISO 3274:1996)

EN ISO 3611, Geometrical product specifications (GPS) — Dimensional measuring equipment: Micrometers
for external measurements — Design and metrological characteristics (ISO 3611:2010)

EN ISO 4287, Geometrical product specifications (GPS) — Surface texture: Profile method — Terms,
definitions and surface texture parameters (ISO 4287:1997)

EN ISO 4288, Geometrical product specifications (GPS) — Surface texture: Profile method — Rules and
procedures for the assessment of surface texture (ISO 4288:1996)

EN ISO 10360-2, Geometrical product specifications (GPS) — Acceptance and reverification tests for
coordinate measuring machines (CMM) — Part 2: CMMs used for measuring linear dimensions
(ISO 10360-2:2009)

3 Terms and definitions

For the purposes of this document, the following terms and definitions apply.

3.1
angle of inclination of rail
nominal angle at which rail is laid (see Figure 1 b)), e.g. 0° (vertical rails), 2,86° (1:20 inclination), 1,91° (1:30
inclination), 1,43° (1:40 inclination), etc., inclined towards the centre of the track

NOTE For rail which is laid in non-canted track, the angle of inclination of the rail is equal to the angle between the
vertical and the centre-line of the inclined rail.

3.2
approved instrument
instrument for measurement of longitudinal or transverse profile the usage of which is justified by correlation of
its performance with that of a reference instrument in accordance with the defined procedure

NOTE For procedure to demonstrate correlation, see Annex B.

5
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