SIST EN 10307:2002

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Zerstörungsfreie Prüfung - Ultraschallprüfung von Flacherzeugnissen aus austenitischem und austenitisch-ferritischem nichtrostendem Stahl ab 6 mm Dicke (Reflexionsverfahren)Essais non destructifs - Contrôle par ultrasons des produits plats en acier inoxydable austénitique et austéno-ferritique d'épaisseur égale ou supérieure a 6 mm (méthode par réflexion)Non-destructive testing - Ultrasonic testing of austenitic and austenitic-ferritic stainless steels flat products of thickness equal to or greater than 6 mm (reflection method)77.140.50SROL]GHONLFlat steel products and semi-products77.040.20Neporušitveno preskušanje kovinNon-destructive testing of metalsICS:Ta slovenski standard je istoveten z:EN 10307:2001SIST EN 10307:2002en01-junij-2002SIST EN 10307:2002SLOVENSKI
STANDARD



SIST EN 10307:2002



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 10307October 2001ICS 77.040.20; 77.140.50English versionNon-destructive testing - Ultrasonic testing of austenitic andaustenitic-ferritic stainless steels flat products of thickness equalto or greater than 6 mm (reflection method)Essais non destructifs - Contrôle par ultrasons des produitsplats en acier inoxydable austénitique et austéno-ferritiqued'épaisseur égale ou supérieure à 6 mm (méthode parréflexion)Zerstörungsfreie Prüfung - Ultraschallprüfung vonFlacherzeugnissen aus austenitischem und austenitisch-ferritischem nichtrostendem Stahl ab 6 mm Dicke(Reflexionsverfahren)This European Standard was approved by CEN on 30 September 2001.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2001 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 10307:2001 ESIST EN 10307:2002



EN 10307:2001 (E)2ContentspageForeword.31Scope.42Normative references.43Terms and definitions.44Items for agreements.55Principle.56Procedure.67Personnel qualification.78Ultrasonic test equipment.78.1Instrument.78.2Probe.78.3Calibration blocks.88.4Reference blocks.88.5Couplant.89Routine calibration and checking.810Stage of manufacture.811Surface condition.912Sensitivity setting.913Scanning.913.1General.913.2Scanning speed.1013.3Testing of the flat product body.1013.4Testing of the flat product edges.1014Evaluation of discontinuities.1014.1Testing the flat product body.1114.2Testing the edges.1115Recording level and acceptance criteria.1216Test report.14Annex A (informative)
List of equivalent terms in several European languages.16Bibliography.17SIST EN 10307:2002



EN 10307:2001 (E)3ForewordThis European Standard has been prepared by Technical Committee ECISS/TC 2 “Steel - Physico-chemical andnon-destructive testing", 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 orby endorsement, at the latest by April 2002, and conflicting national standards shall be withdrawn at the latest byApril 2002.Annex A is informative.This standard includes a Bibliography.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden,Switzerland and the United Kingdom.SIST EN 10307:2002



EN 10307:2001 (E)41 ScopeThis European Standard describes a method for the ultrasonic-testing of uncoated flat austenitic and austenitic-ferritic stainless steel product for internal discontinuities. It is applicable to flat product in nominal thickness range of6 mm to 200 mm. Mechanised, semi-automatic or automatic techniques may be used but should be agreedbetween the purchaser and the supplier.This standard also defines 3 quality classes for the flat product body (classes S1, S2 and S3) and 4 quality classes(E1, E2, E3, E4) for the edges in accordance with the criteria specified in clause 12.Other methods of testing, e.g. by transmission technique or other test equipments may be used at themanufacturer's discretion provided that they give equivalent results to those obtained under the conditions of thisstandard. In the event of a dispute, only the method defined in this standard prevails.Testing of flat product of thickness less than 6 mm may be the subject of special agreements between the partiesconcerned.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN 473, Non destructive testing - Qualification and certification of NDT personnel - General principles.EN 583-2, Non-destructive testing – Ultrasonic examination - Part 2 : Sensitivity and range setting.EN 583-5, Non-destructive testing -
Ultrasonic examination - Part 5 : Characterization and sizing of discontinuities.EN 1330-4, Non destructive testing - Terminology - Part 4 : Terms used in ultrasonic testing.EN 12223; Non-destructive testing – Ultrasonic examination – Specification for calibration block n°1.EN 12668-1, Non-destructive testing - Characterization and verification of ultrasonic examination equipment - Part1 : Instruments.EN 12668-2, Non-destructive testing - Characterization and verification of ultrasonic examination equipment - Part2 : Probes.EN 12668-3, Non-destructive testing
- Characterization and verification of ultrasonic examination equipment - Part3 : Combined equipment.3 Terms and definitionsDefinitions for general terms of non-destructive testing can be found in other European Standards, e.g. EN 1330-1and EN 1330-2. For the purposes of this European Standard, the terms and definitions given in EN 1330-4 apply,together with the following :3.1internal discontinuityany imperfection lying within the thickness of the flat product, e.g. planar or laminar imperfection, single-plane ormulti-plane inclusion bands or clustersNOTEIt is referred in the text as discontinuity.SIST EN 10307:2002



EN 10307:2001 (E)53.2defectinternal discontinuity, exceeding the specified maximum size or population density limits3.3population densitythe number of individual internal discontinuities of a size greater than a specified minimum size and less than aspecified maximum size per specified area of body or length of edge zone3.4manual testingtesting by an operator applying an ultrasonic probe, or probes, to the flat product surface, manually executing theappropriate scanning pattern on the flat product surface and assessing ultrasonic signal indications on theelectronic equipment screen either by direct viewing or by built-in signal amplitude alarm devices3.5automatic and semi-automatic testingtesting using a mechanized means of applying the ultrasonic probe or probes to, and executing the appropriatescanning pattern on the product surface, together with ultrasonic signal indication evaluation by electronic meansNOTESuch testing can be either fully automatic with no operator involvement, or semi-automatic when the operatorperforms basic equipment operation functions.A list of equivalent terms in several European languages is given in annex A.4 Items for agreementsThe following aspects concerning ultrasonic testing shall be agreed between the purchaser and supplier at the timeof the enquiry or order :a) the manufacturing stage(s) at which ultrasonic testing shall be performed (see clause 10) ;b) the volume(s) to be tested and whether grid scanning coverage or complete scanning coverage is required(see clause 13) ;c) the Quality Class required, or the Quality Classes and the zones to which they apply (see clause 15) ;d) the applicable recording level and acceptance criteria if different from those detailed in Tables 3 to 5 ;e) whether any special scanning coverage, equipment or couplant is required in addition to that detailed inclauses 8 and 13 ;f) the scanning technique to be used if not manual ;g) the techniques to evaluate discontinuities (see clause 15) ;h) the technique(s) to be used for setting sensitivity (see clause 12) ;i) whether the test is to be conducted in the presence of the purchaser
or his representative ;j) whether a written procedure shall be submitted for approval by the purchaser (see clause 6).5 PrincipleThe method used is based on the reflection of ultrasonic waves (generally longitudinal), the
direction of which isapproximately perpendicular to the surface of the product. The examination consists of :SIST EN 10307:2002



EN 10307:2001 (E)6a) locating and evaluation of discontinuity by comparing the amplitude of the discontinuity echo with the amplitudeof the echo of a flat-bottomed hole of a given diameter and located at the same depth as the discontinuity.NOTEOnly those discontinuities giving an echo amplitude equal or greater than that obtained with the reference flat-bottomed hole are taken into consideration ;b) determining the area of the discontinuity according to the -6dB beam width technique. The width of thediscontinuity shall be determined perpendicular to the rolling direction. The length shall be determined in therolling direction.If areas with particular permeability are located, the testing conditions shall be adjusted in order to test these areaswith the required sensitivity level.The examination is carried out during the first ultrasonic scan (first back wall echo) for all the product thicknessesand from one side only.6 ProcedureThe inspection is normally carried out in the place of production or on the premises of the supplier. If specified onthe order, the inspection may take place in the presence of the purchaser or his representative1).Ultrasonic testing shall be performed in accordance with a written procedure. Where specified in the enquiry ororder, the written procedure shall be submitted to the purchaser for approval prior to testing.This written procedure shall be in the form of :a) a product specification ; orb) a procedure written specifically for the application ; orc) this European Standard may be used if it is accompanied by examination details specific to the application.The procedure shall contain the following details as a minimum requirement :a) description of the item to be examined ;b) reference documents ;c) qualification and certification of examination personnel ;d) stage of manufacture at which the examination is carried out ;e) examination zones specified in terms of the applicable Quality Classes ;f) any special preparation of scanning surfaces, if applicable ;g) couplant ;h) description of examination equipment ;i) calibration ;j) scanning plan ;k) description and sequence of examination operations ;l) recording levels ;
1)In this case, all steps should be taken to ensure that the production process is not disturbed.SIST EN 10307:2002



EN 10307:2001 (E)7m) characterisation of discontinuities ;n) acceptance criteria ;o) examination report.7 Personnel qualificationIt is assumed that ultrasonic testing is performed by qualified and capable personnel. In order to prove thisqualification, it is recommended to certify
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