SIST EN 13231-3:2012
(Main)Railway applications - Track - Acceptance of works - Part 3: Acceptance of reprofiling rails in track
Railway applications - Track - Acceptance of works - Part 3: Acceptance of reprofiling rails in track
This part of this European Standard lays down the technical requirements and the measurements to be made for the acceptance of work to reprofiled longitudinally and/or transversely the heads of railway rails, including the parts of switches and crossings that can be reprofiled. For acceptance purposes, two classes of longitudinal profile and three classes of transverse profile tolerance are defined. It also informs about procedures to verify reference instruments to be used for these measurements and informs about a method to approve non-reference instruments to be used for measurements. It applies to reprofiled vignole railway rails 40 kg/m and above. A form of acceptance documentation that may be used is given in Annex C.
Bahnanwendungen - Oberbau - Abnahme von Arbeiten - Teil 3: Abnahme von reprofilierten Schienen im Gleis
Dieser Teil der Europäischen Norm legt die technischen Anforderungen und die auszuführenden Messungen für die Abnahme von Reprofilierungsarbeiten im Schienenkopflängs- und/oder -querprofil, einschließlich der Bereiche der Weichen und Kreuzungen, die reprofiliert werden können, fest.
Für die Abnahme werden zwei Klassen von Längsprofil- und drei Klassen von Querprofil-Toleranzen definiert.
Dieser Teil informiert auch über Verfahren für die Überprüfung der für diese Messungen zu verwendenden Bezugsmessgeräte und über die Zulassung von für Messungen zu benutzenden Nicht-Bezugsmessgeräten.
Dieser Teil gilt für reprofilierte Vignolschienen ab 40 kg/m.
Eine Abnahmeniederschrift, welche angewendet werden darf, siehe Anhang E.
Applications ferroviaires - Voies - Réception des travaux - Partie 3 : Critères de réception des rails reprofilés en voie
La présente partie de cette Norme européenne spécifie les exigences techniques et les mesures relatives à la réception de travaux concernant le reprofilage longitudinal et/ou transversal des champignons de rails de chemin de fer, y compris dans les appareils de voie pouvant être reprofilés.
Pour les besoins de la réception, deux classes de tolérance de profil longitudinal et trois classes de tolérance de profil transversal sont définies.
Elle donne également des informations sur les procédures à appliquer d’une part pour vérifier les instruments de référence à utiliser pour ces mesures et d’autre part pour approuver les instruments autres que de référence à utiliser pour les mesures.
Elle s’applique aux travaux de reprofilage des rails Vignole de masse supérieure ou égale à 40 kg/m.
Un exemple de documentation de réception qu’il est possible d’utiliser est donné à l’Annexe C.
Železniške naprave - Zgornji ustroj - Prevzem del - 3. del: Prevzemni kriteriji za reprofiliranje vgrajenih tirnic
V tem evropskem standardu so določene tehnične zahteve in meritve, ki jih je treba opraviti za prevzem del v zvezi z vzdolžnim in/ali prečnim reprofiliranjem glav železniških tirnic. Za namene sprejetja sta opredeljena dva razreda toleranc vzdolžnega profila in trije razredi toleranc prečnega profila. V dodatkih so opisani postopki za preverjanje referenčnih instrumentov, ki se uporabijo za te meritve, in metode za odobritev nereferenčnih instrumentov za meritve. Ta evropski standard se uporablja za reprofilirane Vignolove železniške tirnice z maso 46 kg/m in več. Ne uporablja se za akustično reprofiliranje tirnic. Oblika prevzemne dokumentacije, ki se lahko uporabi, je podana v dodatku E.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Železniške naprave - Zgornji ustroj - Prevzem del - 3. del: Prevzemni kriteriji za reprofiliranje vgrajenih tirnicBahnanwendungen - Oberbau - Abnahme von Arbeiten - Teil 3: Abnahme von reprofilierten Schienen im GleisApplications ferroviaires - Voies - Réception des travaux - Partie 3 : Critères de réception des rails reprofilés en voieRailway applications - Track - Acceptance of works - Part 3: Acceptance of reprofiling rails in track93.100Gradnja železnicConstruction of railways45.080Rails and railway componentsICS:Ta slovenski standard je istoveten z:EN 13231-3:2012SIST EN 13231-3:2012en,fr01-marec-2012SIST EN 13231-3:2012SLOVENSKI
STANDARDSIST EN 13231-3:20061DGRPHãþD
SIST EN 13231-3:2012
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13231-3
January 2012 ICS 93.100 Supersedes EN 13231-3:2006English Version
Railway applications - Track - Acceptance of works - Part 3: Acceptance of reprofiling rails in track
Applications ferroviaires - Voie - Réception des travaux - Partie 3: Critères de réception des travaux de reprofilage des rails en voie
Bahnanwendungen - Oberbau - Abnahme von Arbeiten - Teil 3: Abnahme von reprofilierten Schienen im Gleis 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 worldwide for CEN national Members. Ref. No. EN 13231-3:2012: ESIST EN 13231-3:2012
EN 13231-3:2012 (E) 2 Contents Page Foreword .41 Scope .52 Normative references .53 Terms and definitions .54 Longitudinal profile .84.1 Principle .84.2 Measurements required .84.3 Acceptance criteria for longitudinal profile .94.3.1 General .94.3.2 Peak-to-peak value .95 Transverse profile . 105.1 Principle . 105.2 Measurements required . 105.3 Acceptance criteria for the transverse profile . 116 Metal removal . 116.1 Measurements required . 116.2 Acceptance criteria for metal removal. 127 Surface roughness . 128 Visual appearance: acceptance criteria . 12Annex A (normative)
Procedures to verify reference instruments . 15A.1 Longitudinal profile . 15A.1.1 Principle . 15A.1.2 Calibration beam . 15A.1.3 Coordinate Measuring Machine (CMM) . 16A.1.4 Measurement of the calibration beam using the CMM . 16A.1.5 Data analysis . 16A.1.6 Measurement of the calibration beam using the test instrument . 16A.1.7 Data analysis using the test instrument . 16A.1.8 Acceptance criteria for reference instruments . 16A.1.9 Test report . 16A.2 Transverse profile . 17A.2.1 Principle . 17A.2.2 Calibration jig . 17A.2.3 Coordinate measuring machine (CMM) . 17A.2.4 Calibration jig verification . 17A.2.5 Rail measurements using the test instrument . 18A.2.6 Acceptance of test instruments . 18A.2.7 Test report . 18Annex B (normative)
Procedures to demonstrate correlation of approved and reference instruments . 21B.1 Longitudinal profile . 21B.1.1 Principle . 21B.1.2 Characteristics of the test sites . 21B.1.3 Measurements required . 21B.1.4 Data analysis . 22B.1.5 Acceptance criteria for approved instruments . 22B.1.6 Test report . 23SIST EN 13231-3:2012
EN 13231-3:2012 (E) 3 B.2 Transverse profile . 23B.2.1 Principle. 23B.2.2 Characteristics of the test sites . 23B.2.3 Measurements required . 24B.2.4 Data analysis . 24B.2.5 Acceptance criteria for approved instruments . 28B.2.6 Test report . 28Annex C (normative)
Calculation of peak to peak values . 29C.1 Calculation of the percentage of exceedances . 29Annex D (normative)
Method of periodic verification . 30D.1 Method of periodic verification of approved instruments . 30D.1.1 Principle. 30D.1.2 Longitudinal profile . 30D.1.3 Static verifications . 30D.1.4 Dynamic verification . 31D.2 Transverse profile . 32D.2.1 Principle. 32D.2.2 Static verifications . 32D.2.3 Dynamic verification . 33D.2.4 Report . 34Annex E (informative)
Example of acceptance documentation for rail reprofiling work . 37Bibliography . 39 SIST EN 13231-3:2012
EN 13231-3:2012 (E) 4 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. 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.
SIST EN 13231-3:2012
EN 13231-3:2012 (E) 5 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. 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. SIST EN 13231-3:2012
EN 13231-3:2012 (E) 6 3.3 characteristic length length on the rail travelled during one rotation of a grinding stone or milling wheel 3.4 class 1, class 2 classes of longitudinal profile differentiated by the proportion of a reprofiling site reaching a specified standard NOTE For longitudinal profile, see 4.3. 3.5 class Q, class R, class S classes of transverse profile differentiated by the proportion of a reprofiling site reaching a specified standard NOTE For transverse profile, see 5.3. 3.6 cut-off wavelength wavelength of a sinusoidal profile of which 50 % of the amplitude is transmitted by the profile filter NOTE Profile filters are identified by their cut-off wavelength value, see EN ISO 11562. 3.7 deviation of the measured profile deviation between the measured transverse profile and the reference rail, measured normal to the surface of the reference rail when the measured transverse profile and the reference rail are aligned at points A and B1 or A and B2, without rotation of either profile; the deviation is considered positive when the measured transverse profile is above the reference rail NOTE For deviation, see Figure 3. 3.8 facet approximately plane sector of the profile of a reprofiled rail produced by the reprofiling tool 3.9 filtered profile profile which results from applying a profile filter to the primary profile 3.10 percentage exceedance percentage length of a test site over which a measurement of the amplitude of the filtered profile exceeds a prescribed limit 3.11 phase correct profile filter profile filter which does not cause phase shifts which lead to asymmetrical profile distortions NOTE For profile filter, see EN ISO 11562. 3.12 primary profile representation of the measured longitudinal profile before application of any profile filter 3.13 profile filter electronic device or signal processing which separates profiles into long-wave and short-wave components, or into components within a specified wavelength range SIST EN 13231-3:2012
EN 13231-3:2012 (E) 7 3.14 rail crown line that line on the rail head surface that is corresponding to the Y-Y axis of the rail profile 3.15 range of deviation difference between the maximum and minimum values of the deviation of the measured transverse profile NOTE For measured profile, see Figure 3. 3.16 reference instrument instrument for the measurement of longitudinal or transverse profile the performance of which has been verified in accordance with the procedure defined in Annex A 3.17 reference line line normal to the track's longitudinal axis and tangent to the heads of both rails 3.18 reference point A point towards the gauge side of a reference rail at which the angle between the reference line and the tangent to the profile is equal to the specified angle of inclination NOTE For specified angle of inclination, see Figure 1. 3.19 reference point B1 point on the gauge face of a reference rail which lies 14 mm below that line that is parallel to the reference line and which passes through reference point A NOTE For reference point, see Figure 1 a). 3.20 reference point B2 point on the gauge corner of a reference rail at which a line which is tangent to the rail lies at an angle of 45° to the reference line NOTE For reference point, see Figure 1 b). 3.21 reference profile transverse profile to which rail is to be reprofiled, within the specified tolerances 3.22 reference rail rail with the reference profile, at the desired angle of inclination relative to the reference line NOTE For reference rail, see Figure 1 a). 3.23 reprofiling action that is undertaken to modify the longitudinal or transverse profile of a rail 3.24 reprofiling site continuous length of track where the rail is to be reprofiled excluding level crossings and switches and crossing work within the length of track SIST EN 13231-3:2012
EN 13231-3:2012 (E) 8 3.25 reprofiling zone area of the railhead of a reference rail between the point at which the tangent to the rail lies at an angle of 70° to the reference line, measured towards the gauge side of the rail, and the point at which the tangent to the rail lies at an angle of 5° to the reference line, measured towards the field side of the rail NOTE For side of the rail, see Figure 2. 3.26 sampling interval distance between successive points on the rail at which a continuous record of the traced profile is sampled in order to produce the primary profile 3.27 test instrument instrument whose use as a reference instrument or an approved instrument is being tested 3.28 traced profile profile of the rail as recorded by the measuring system 3.29 transition length initial or final section of a length of track where the validity of a measurement of longitudinal or transverse profile is questionable for a variety of reasons, including settling of electronic and digital components and circuits 4 Longitudinal profile 4.1 Principle Measurements are made using either a reference instrument, see 3.16, or an approved instrument, see 3.2. Approved instruments do not offer the same accuracy as reference instruments but are generally adequate for the purpose of demonstrating compliance with the requirements of this European Standard. NOTE An example of an approved instrument is the type of system used for routine corrugation measurement. Some of the systems used on reprofiling trains fall into this category. In accordance with current practice, limits are set on the magnitude of the irregularities that can remain in track after a reprofiling operation. It is recognised, however, that it can be uneconomic to achieve 100 % compliance with these, particularly where isolated rail running surface defects, such as wheel burn, exist prior to reprofiling. Two classes are therefore offered, differentiated by the percentage of the reprofiled track meeting the specified criteria. Where isolated top faults exist, class 2 offers a lower cost option compared to class 1 as it will be achieved with fewer passes. However, a larger number of isolated non-compliant zones will remain in the reprofiled site. Class 1 also includes limits for very short (10 mm to 30 mm) and very long (300 mm to 1 000 mm) wavelength residual irregularities; these are not included in class 2. Where it is required that corrugations in these shall be removed it will also be necessary to specify class 1. For the necessary annual metrological check, see Annex D. 4.2 Measurements required The longitudinal profile of the finished reprofiled rail shall be recorded continuously using either a reference instrument or an approved instrument. Where independent verification is required a reference instrument shall be used. All measurements undertaken in order to demonstrate compliance with 4.3 shall be recorded. SIST EN 13231-3:2012
EN 13231-3:2012 (E) 9 Longitudinal profile measurements shall be made within a distance of 15 mm laterally on the rail from the rail crown, to produce the traced profile. NOTE
It is recommended that a digital form of the traced profile, the primary profile, be used for subsequent analysis. Measurements should be undertaken immediately after work. Measurements shall be undertaken at the latest within 8 days of reprofiling or before the track has carried 0,3 MGT (Million Gross Tonnes) of traffic, whichever occurs sooner. 4.3 Acceptance criteria for longitudinal profile 4.3.1 General The acceptance of reprofiled sites shall be on the basis of percentage of irregularities shown in Table 1. 4.3.2 Peak-to-peak value The percentage of any site in which the amplitude of the filtered profile exceeds the value specified in Table 1 shall be calculated. The primary or traced profile shall be processed to provide a filtered profile within each of the wavelength ranges given in Table 2. Table 1 — Acceptance criteria for longitudinal profile expressed in terms of allowable percentages of exceeding Wavelength range (mm) 10 to 30 30 to 100 100 to 300 300 to 1 000 Class 1 5 % 5 % 5 % 5 % Class 2 No requirement 10 % 10 % No requirement SIST EN 13231-3:2012
EN 13231-3:2012 (E) 10 Table 2 — Acceptance criteria for peak to peak limits Wavelength range (mm) 10 to 30 30 to 100 100 to 300 300 to 1 000 Limit of peak-to-peak values (mm) ± 0,010 ± 0,010 ± 0,015 ± 0,075
The classification concerns the total length of each reprofiling section, where level crossings and switches and crossing work within the length of track are to be excluded. 5 Transverse profile 5.1 Principle Measurements are made using either a reference instrument, see 3.16, or an approved instrument, see 3.2. Approved instruments do not offer the same accuracy as reference instruments but are generally adequate for the purpose of demonstrating compliance with the requirements of this European Standard. Reprofiling can be undertaken for a variety of reasons. Where reprofiling is undertaken purely for the removal of corrugation, there may be less need for the rail to be reprofiled with precision. In other cases, it may be necessary for the reprofiled rail to match closely the ideal profile, represented by the reference rail, see 3.22. A range of classes is therefore included to enable the client to specify the level of precision that is appropriate for the site to be reprofiled. NOTE Where reprofiling is undertaken to improve conicity, class Q, see 5.3, is likely to be appropriate. The match between the reprofiled rail and the profile of the reference rail is determined by aligning the two at two points and measuring maximum difference between them, see Figure 3. For straight track, these points of alignment generally approximate to the rail crown and the gauge point. On the high rail of curves, this method is not applicable if side wear has occurred and an alternative method of alignment is therefore used. For the necessary annual metrological check, see Annex D. 5.2 Measurements required The rail's transverse profile shall be measured using either a reference instrument or an approved instrument. Where independent verification is required a reference instrument shall be used. All measurements undertaken in order to demonstrate compliance with 5.3 shall be recorded. Measurements should be undertaken immediately after work. Measurements shall be undertaken at the latest within 8 days of reprofiling or before the track has carried 0,3 MGT (Million Gross Tonnes) of traffic, which ever occurs sooner. NOTE It is preferable for measurements to be made immediately after reprofiling. The transverse profile of each finished, reprofiled rail shall be measured sufficiently frequently to ensure compliance with the requirements stated in 5.3. The transverse profile shall be recorded at least once per reprofiling site or at an interval of not more than 500 m on a reprofiling site greater than 500 m long. Where independent verification is required, measurements of each rail shall be made at an interval of not less than 10 m throughout the reprofiling site. SIST EN 13231-3:2012
EN 13231-3:2012 (E) 11 5.3 Acceptance criteria for the transverse profile Each measured profile shall be aligned with the appropriate reference rail so that the reference points A and B1, or A and B2, on the reference rail coincide with points on the measured profile. The alignment shall be undertaken without rotation of either profile. Reference points A and B2 shall be used on side-worn rails and A and B1 elsewhere. The transverse reprofiling shall be specified as one of three classes as shown in Table 3. For each class one range of deviation and division of this range between a positive and negative tolerance shall also be specified. The percentage of measurements for which the deviation exceeds the stated range shall not exceed the value given in Table 3 for the class specified. E.g. if reprofiling of class R and a tolerance range of 1,0 mm apportioned as + 0,4 mm/- 0,6 mm were specified, at least 85 % of measurements should deviate by less than + 0,4 mm/- 0,6 mm from the prescribed reference profile. The maximum positive deviations shall be specified, e.g. for the range of deviation 0,6 mm:
+ 0,3 mm/- 0,3 mm, + 0,2 mm/- 0,4 mm. Table 3 — Minimum
...
SLOVENSKI STANDARD
oSIST prEN 13231-3:2010
01-marec-2010
Železniške naprave - Zgornji ustroj - Prevzem del - 3. del: Prevzemni kriteriji za
reprofiliranje vgrajenih tirnic
Railway applications - Track - Acceptance of works - Part 3: Acceptance of reprofiling
rails in track
Bahnanwendungen - Oberbau - Abnahme von Arbeiten - Teil 3: Abnahme von
reprofilierten Schienen im Gleis
Applications ferroviaires - Voies - Réception des travaux - Partie 3 : Critères de réception
des rails reprofilés en voie
Ta slovenski standard je istoveten z: prEN 13231-3
ICS:
45.080 7UDþQLFHLQåHOH]QLãNLGHOL Rails and railway
components
oSIST prEN 13231-3:2010 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 13231-3:2010
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oSIST prEN 13231-3:2010
EUROPEAN STANDARD
DRAFT
prEN 13231-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2009
ICS 45.080 Will supersede EN 13231-3:2006
English Version
Railway applications - Track - Acceptance of works - Part 3:
Acceptance of reprofiling rails in track
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 256.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13231-3:2009: E
worldwide for CEN national Members.
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oSIST prEN 13231-3:2010
prEN 13231-3:2009 (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
4.3 Acceptance criteria for longitudinal profile .9
4.3.1 General .9
4.3.2 Peak-to-peak value .9
5 Transverse profile .9
5.1 Principle .9
5.2 Measurements required . 10
5.3 Acceptance criteria for the transverse profile . 10
6 Metal removal . 11
6.1 Measurements required . 11
6.2 Acceptance criteria for metal removal. 11
7 Surface roughness . 11
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 . 17
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 . 20
B.1 Longitudinal profile . 20
B.1.1 Principle . 20
B.1.2 Characteristics of the test sites . 20
B.1.3 Measurements required . 20
B.1.4 Data analysis . 21
B.1.5 Acceptance criteria for approved instruments . 21
B.1.6 Test report . 21
2
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oSIST prEN 13231-3:2010
prEN 13231-3:2009 (E)
B.2 Transverse profile . 22
B.2.1 Principle. 22
B.2.2 Characteristics of the test sites . 22
B.2.3 Measurements required . 23
B.2.4 Data analysis . 23
B.2.5 Acceptance criteria for approved instruments . 25
B.2.6 Test report . 25
Annex C (normative) Calculation of peak to peak values . 26
C.1 Percentage of exceedances . 26
Annex D (normative) Method of periodic verification . 27
D.1 Method of periodic verification of approved instruments . 27
D.1.1 Principle. 27
D.1.2 Longitudinal profile . 27
D.1.3 Static verifications . 27
D.1.4 Dynamic verification . 28
D.2 Transverse profile . 29
D.2.1 Principle. 29
D.2.2 Static verifications . 29
D.2.3 Dynamic verification . 29
D.2.4 Comparison of statistical results . 29
D.2.5 Report . 32
Annex E (informative) Example of acceptance documentation for rail re-profiling work . 35
Bibliography . 37
3
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oSIST prEN 13231-3:2010
prEN 13231-3:2009 (E)
Foreword
This document (prEN 13231-3:2009) has been prepared by Technical Committee CEN/TC 256 “Railway
applications”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 13231-3:2006.
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.
4
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oSIST prEN 13231-3:2010
prEN 13231-3:2009 (E)
1 Scope
This part of this European Standard lays down the technical requirements and the measurements to be made
for the acceptance of work to reprofiled longitudinally and/or transversely the heads of railway rails, including
the parts of switches and crossings that can be reprofiled.
For acceptance purposes, two classes of longitudinal profile and three classes of transverse profile tolerance
are defined.
It also informs about procedures to verify reference instruments to be used for these measurements and
informs about a method to approve non-reference instruments to be used for measurements.
It applies to reprofiled vignole railway rails 40 kg/m and above.
A form of acceptance documentation that may be used is given in Annex C.
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)
prEN ISO 3611:2008, Geometrical product specifications (GPS) – Dimensional measuring instruments –
Micrometers for external measurements – Design and metrological characteristics (ISO/FDIS 3611:2008)
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 size (ISO 10360-2:2001)
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) 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.
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3.3
characteristic length
length on the rail travelled during one rotation of a grinding stone
3.4
class 1, class 2
classes of longitudinal profile differentiated by the proportion of a reprofiling site reaching a specified standard
NOTE For longitudinal profile, see 4.3.
3.5
class Q, class R, class S
classes of transverse profile differentiated by the proportion of a reprofiling site reaching a specified standard
NOTE For transverse profile, see 5.3.
3.6
cut-off wavelength
wavelength of a sinusoidal profile of which 50 % of the amplitude is transmitted by the profile filter
NOTE Profile filters are identified by their cut-off wavelength value, see EN ISO 11562.
3.7
deviation of the measured profile
deviation between the measured profile and the reference rail, measured normal to the surface of the
reference rail when the measured profile and the reference rail are aligned at points A and B or A and B ,
1 2
without rotation of either profile. The deviation is considered positive when the measured profile is above the
reference rail
NOTE For deviation, see Figure 3.
3.8
filtered profile
profile which results from applying a profile filter to the primary profile
3.9
facet
approximately plane sector of the profile of a reprofiled rail produced by the reprofiling tool
3.10
percentage exceedance
percentage length of a test site over which a measurement of the amplitude of the filtered profile exceeds a
prescribed limit
3.11
phase correct profile filter
profile filter which does not cause phase shifts which lead to asymmetrical profile distortions
NOTE For profile filter, see EN ISO 11562:1997 + AC:2008.
3.12
primary profile
representation of the measured longitudinal profile before application of any profile filter
3.13
profile filter
electronic device or signal processing which separates profiles into long-wave and short-wave components, or
into components within a specified wavelength range
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3.14
rail crown
that point on the rail-head surface that is aligned with the centre-line of the web
3.15
range of deviation
difference between the maximum and minimum values of the deviation of the measured profile
NOTE For measured profile, see Figure 3.
3.16
reference instrument
instrument for the measurement of longitudinal or transverse profile the performance of which has been
verified in accordance with the procedure defined in Annex A
3.17
reference line
line normal to the track's longitudinal axis and tangent to the heads of both rails
3.18
reference point A
that point towards the gauge side of a reference rail at which the angle between the reference line and the
tangent to the profile is equal to the specified angle of inclination
NOTE For specified angle of inclination, see Figure 1.
3.19
reference point B
1
that point on the gauge face of a reference rail which lies 14 mm below that line that is parallel to the
reference line and which passes through reference point A
NOTE For reference point, see Figure 1(a).
3.20
reference point B
2
that point on the gauge corner of a reference rail at which a line which is tangent to the rail lies at an angle of
45° to the reference line
NOTE For reference line, see Figure 1(b).
3.21
reference profile
transverse profile to which rail is to be reprofiled, within the specified tolerances
3.22
reference rail
rail with the reference profile, at the desired angle of inclination relative to the reference line (see Figure 1(a))
NOTE In switch and crossing work, with rails laid vertically, it may be desired to reprofile the rail so that its head
profile matches that of the adjacent plain line in which rails are inclined at, e.g. 1 in 20. In this case, the angle of inclination
of the reference rail will be 2,86° (1 in 20).
3.23
reprofiling
action that is undertaken to modify the longitudinal or transverse profile of a rail
3.24
reprofiling site
continuous length of track where the rail is to be reprofiled
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3.25
reprofiling zone
area of the railhead of a reference rail between the point at which the tangent to the rail lies at an angle of 70°
to the reference line, measured towards the gauge side of the rail, and the point at which the tangent to the
rail lies at an angle of 5° to the reference line, measured towards the field side of the rail
NOTE For side of the rail, see Figure 2.
3.26
sampling interval
distance between successive points at which a continuous record of the traced profile is sampled in order to
produce the primary profile
3.27
test instrument
instrument whose use as a reference instrument or an approved instrument is being tested
3.28
traced profile
profile of the rail as recorded by the measuring system
3.29
transition length
initial or final section of a length of track where the validity of a measurement of longitudinal or transverse
profile is questionable for a variety of reasons, including settling of electronic and digital components and
circuits
4 Longitudinal profile
4.1 Principle
Measurements are made using either a reference instrument, see 3.16, or an approved instrument, see
Annex B. Approved instruments do not offer the same accuracy as reference instruments but are generally
adequate for the purpose of demonstrating compliance with the requirements of this standard.
NOTE An example of an approved instrument is the type of system used for routine measurements on reprofiling
trains. Some of the systems used for routine measurements on reprofiling trains fall into this category.
In accordance with current practice, limits are set on the magnitude of the irregularities that can remain in
track after a reprofiling operation. It is recognised, however, that it can be uneconomic to achieve 100 %
compliance with these, particularly where isolated top faults, such as wheel burn, exist prior to reprofiling. Two
classes are therefore offered, differentiated by the percentage of the reprofiled track meeting the specified
criteria. Where isolated top faults exist, class 2 offers a lower cost option compared to class 1 as it will be
achieved with fewer passes. However a larger number of isolated non-compliant zones will remain in the
reprofiled site.
Class 1 also includes limits for very short (10 mm to 30 mm) and very long (300 mm to 1 000 mm) wavelength
residual irregularities; these are not included in class 2. Where corrugations in these wavebands are required
to be removed it will also be necessary to specify class 1.
4.2 Measurements required
The longitudinal profile of the finished reprofiled rail shall be recorded continuously using either a reference
instrument or an approved instrument. Where independent verification is required a reference instrument shall
be used. All measurements undertaken in order to demonstrate compliance with 4.3 shall be recorded.
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NOTE 1 For measurements in the (10 mm to 30 mm) wavelength range, it is at present unlikely that instruments other
than reference instruments will have sufficient accuracy.
Longitudinal profile measurements shall be made within a distance of 15 mm laterally on the rail from the rail
crown, to produce the traced profile.
NOTE 2 It is recommended that a digital form of the traced profile, the primary profile, be used for subsequent analysis.
The measurements can be undertaken immediate after work or at the latest within 8 days of reprofiling or after
the track has carried 0,3 MGT (Million Gross Tons) of traffic.
4.3 Acceptance criteria for longitudinal profile
4.3.1 General
The acceptance of reprofiled sites shall be on the basis of percentage of irregularities shown in Table 1.
4.3.2 Peak-to-peak value
The percentage of any site in which the peak-to-peak value exceeds the value specified in Table 1 shall be
calculated.
The primary or traced profile shall be processed to provide a filtered profile within each of the wavelength
ranges given in Table 2.
Table 1 — Acceptance criteria for longitudinal profile expressed in terms of allowable percentages of
exceeding
Wavelength range
10 – 30 30 – 100 100 – 300 300 – 1 000
(mm)
Class 1 5 % 5 % 5 % 5 %
Class 2 No requirement 10 % 10 % No requirement
Table 2 — Acceptance criteria for peak to peak limits
Wavelength range
10 - 30 30 - 100 100 - 300 300 - 1 000
(mm)
Limit of
peak-to-peak values ± 0,010 ± 0,010 ± 0,015 ± 0,075
(mm)
The classification concerns the total length of each grinding section, where level crossings and switches are to
be excluded.
5 Transverse profile
5.1 Principle
Measurements are made using either a reference instrument, see 3.18, or an approved instrument, see 3.2.
Approved instruments do not offer the same accuracy as reference instruments but are generally adequate for
the purpose of demonstrating compliance with the requirements of this standard.
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Reprofiling can be undertaken for a variety of reasons. Where reprofiling is undertaken purely for the removal
of corrugation, there may be less need for the rail to be reprofiled with precision. In other cases, it may be
necessary for the reprofiled rail to match closely the ideal profile, represented by the reference rail, see 3.24.
A range of classes is therefore included to enable the client to specify the level of precision that is appropriate
for the site to be reprofiled.
NOTE Where reprofiling is undertaken to improve conicity, class Q, see 5.3, is likely to be appropriate.
The match between the reprofiled rail and the profile of the reference rail is determined by aligning the two at
two points and measuring maximum difference between them, see Figure 3. For straight track, these points of
alignment generally approximate to the rail crown and the gauge point. On the high rail of curves this method
is not applicable if side wear has occurred and an alternative method of alignment is therefore used.
5.2 Measurements required
The rail's transverse profile shall be measured using either a reference instrument or an approved instrument.
Where independent verification is required a reference instrument shall be used. All measurements
undertaken in order to demonstrate compliance with 5.3 shall be recorded.
The measurements can be undertaken immediate after work or at the latest within 8 days of reprofiling or after
the track has carried 0,3 MGT (Million Gross Tons) of traffic.
NOTE It is preferable for measurements to be made immediately after reprofiling.
The transverse profile of each finished, reprofiled rail shall be measured sufficiently frequently to ensure
compliance with the requirements stated in 5.3. The transverse profile shall be recorded at least once per
reprofiling site or at an interval of not more than 500 m on a reprofiling site greater than 500 m long.
Where independent verification is required, measurements of each rail shall be made at an interval of not less
than 10 m throughout the reprofiling site. A deviation of 0,1 mm between the reference instrument and
approved instrument would be acceptable according to Annex B.
5.3 Acceptance criteria for the transverse profile
Each measured profile shall be aligned with the appropriate reference rail so that the reference points A and
B , or A and B , on the reference rail coincide with points on the measured profile. The alignment shall be
1 2
undertaken without rotation of either profile.
Reference points A and B shall be used on side-worn rails and A and B elsewhere.
2 1
The percentage of measurements in which the range of deviation is less than 0,6 mm, 1,0 mm and 1,7 mm
shall be calculated and shall not be less than the values given in Table 3 for the class specified.
The calculation concerns the total length of each grinding section, where the lengths of level crossings and
switches are to be excluded.
Table 3 — Minimum proportion of measurements within the specified range
Range of deviation (mm) 0,6 1,0 1,7
Class Q 90 % 95 % 98 %
Class R 75 % 85 % 98 %
Class S No requirement No requirement 75 %
The maximum positive and negative deviations shall not exceed those in one of groups A, B or C, as specified
in the contract.
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