SIST EN 10049:2014

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Meritve srednje vrednosti hrapavosti Ra in števila konic RPc na ravnih kovinskih izdelkihMessung des arithmetischen Mittenrauwertes Ra und der Spitzenzahl RPc an metallischen FlacherzeugnissenMesure de la rugosité moyenne Ra et du nombre de pics RPc sur les produits plats métalliquesMeasurement of roughness average Ra and peak count RPc on metallic flat products77.140.50SROL]GHONLFlat steel products and semi-products17.040.20Lastnosti površinProperties of surfacesICS:Ta slovenski standard je istoveten z:EN 10049:2013SIST EN 10049:2014en,fr,de01-junij-2014SIST EN 10049:2014SLOVENSKI
STANDARDSIST EN 10049:20061DGRPHãþD



SIST EN 10049:2014



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 10049
November 2013 ICS 01.040.17; 17.040.20 Supersedes EN 10049:2005
English Version
Measurement of roughness average Ra and peak count RPc on metallic flat products
Mesure de la rugosité moyenne Ra et du nombre de pics RPc sur les produits plats métalliques
Messung des arithmetischen Mittenrauwertes Ra und der Spitzenzahl RPc an metallischen Flacherzeugnissen This European Standard was approved by CEN on 29 August 2013.
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, Former Yugoslav Republic of Macedonia, 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
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 10049:2013: E SIST EN 10049:2014



EN 10049:2013 (E) 2 Contents Page Foreword .3 1 Scope .4 2 Normative references .4 3 Terms and definitions .4 4 Measuring instrument .7 4.1 General .7 4.2 Pick-up system .7 4.3 Evaluation profile filter .9 4.4 Checking of the measuring instrument .9 5 Sample preparation . 10 6 Measuring conditions . 10 6.1 General . 10 6.2 Disputes . 11 7 Test report . 11 Bibliography . 12
SIST EN 10049:2014



EN 10049:2013 (E) 3 Foreword This document (EN 10049:2013) has been prepared by Technical Committee ECISS/TC 109 “Flat products for cold working - Qualities, dimensions, tolerances and specific tests”, the secretariat of which is held by AFNOR. 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 May 2014, and conflicting national standards shall be withdrawn at the latest by May 2014. 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 10049:2005. The whole document was technically revised. The European Committee for Iron and Steel Standardization (ECISS) has given Technical Committee 109 (Secretariat France) the task to prepare a European Standard on the measuring of roughness as a revision of EN 10049:2005. The reason for the existence of this European Standard is that general roughness measurement rules as described in ISO standards (see Clause 2) are not practical for metallic flat products for the following reasons:
- the practical use of EN ISO 4288 is not convenient for flat products, because the choice of the cut-off (λc) is dependent on the Ra to be measured; the product range is quite wide and the transition point for Ra is 2 µm in EN ISO 4288 (EN ISO stipulates a cut-off (λc) of 0,8 mm for Ra < 2µm and a cut-off (λc) of 2,5 mm for Ra > 2µm); - in the automotive industry, the use of a cut-off (λc) of 2,5 mm is based on requirements related to paint appearance. According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, 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 10049:2014



EN 10049:2013 (E) 4 1 Scope This European Standard defines the measurement conditions for surface roughness parameters of metallic flat products, both uncoated (cold and hot rolled pickled steel) and coated with metallic coatings (e.g. zinc, aluminium, tin, chromium) (see 3.1).
2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN ISO 5436-1, Geometrical Product Specifications (GPS) — Surface texture: Profile method; Measurement standards — Part 1: Material measures (ISO 5436-1) EN ISO 16610-21, Geometrical product specifications (GPS) — Filtration — Part 21: Linear profile filters: Gaussian filters (ISO 16610-21) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1
application group products
3.1.1
application group 1 product
metallic flat product mainly used in the automotive industry, uncoated or coated with metallic coatings (e.g. zinc, aluminium)
3.1.2 application group 2 product
metallic flat product mainly used for applications other than those of the automotive industry (e.g. tinplate or chromium coated steel for packaging, uncoated or coated cold rolled steel, pickled hot rolled steel) 3.2 surface profile profile that results from the intersection of the real surface by a specified plane
Note 1 to entry: See EN IS
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