DIN EN 16090-2012 Copper and copper alloys - Estimation of average grain size by ultrasound German version EN 16090 2011《铜和铜合金 通过超声波估计平均晶粒尺寸 德文版本EN 16090-2011》.pdf
《DIN EN 16090-2012 Copper and copper alloys - Estimation of average grain size by ultrasound German version EN 16090 2011《铜和铜合金 通过超声波估计平均晶粒尺寸 德文版本EN 16090-2011》.pdf》由会员分享,可在线阅读,更多相关《DIN EN 16090-2012 Copper and copper alloys - Estimation of average grain size by ultrasound German version EN 16090 2011《铜和铜合金 通过超声波估计平均晶粒尺寸 德文版本EN 16090-2011》.pdf(11页珍藏版)》请在麦多课文档分享上搜索。
1、February 2012 Translation by DIN-Sprachendienst.English price group 8No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).IC
2、S 77.120.30!$yx“1868591www.din.deDDIN EN 16090Copper and copper alloys Estimation of average grain size by ultrasoundEnglish translation of DIN EN 16090:2012-02Kupfer und Kupferlegierungen Bestimmung der mittleren Korngre durch UltraschallEnglische bersetzung von DIN EN 16090:2012-02Cuivre et alliag
3、es de cuivre Estimation de la taille moyenne de grain par ultrasonsTraduction anglaise de DIN EN 16090:2012-02www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 11 pages02.12 DIN EN 16090:2012-02 2 A comma is used as the decimal marker. Na
4、tional foreword This standard has been prepared by Technical Committee CEN/TC 133 “Copper and copper alloys”, Working Group WG 3 “Copper tubes (installation and industrial)” (both secretariats are held by DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss
5、Nichteisenmetalle (Nonferrous Metals Standards Committee), Working Committee NA 066-02-03 AA Kupferrohre (Installation und Industrie). EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16090 December 2011 ICS 77.120.30 English Version Copper and copper alloys - Estimation of average grain size by
6、 ultrasound Cuivre et alliages de cuivre - Estimation de la taille moyenne de grain par ultrasons Kupfer und Kupferlegierungen - Bestimmung der mittleren Korngre durch Ultraschall This European Standard was approved by CEN on 5 November 2011. CEN members are bound to comply with the CEN/CENELEC Inte
7、rnal 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
8、 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 ve
9、rsions. 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,
10、Slovenia, Spain, Sweden, Switzerland and United Kingdom. Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16090:2011: EEUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE
11、 NORMALISATION EUROPISCHES KOMITEE FR NORMUNG EN 16090:2011 (E) 2 Contents Page Foreword 3Introduction .41 Scope 52 Normative references 53 Terms and definitions .54 General requirements 54.1 Personnel qualification .54.2 Condition of products to be tested 64.3 Test equipment 64.4 Procedure .75 Inst
12、rument adjustment 86 Reference samples and calibration .87 Acceptance criteria 8Bibliography 9Figures Figure 1 Simplified representation of ultrasonic technique for grain size estimation .7 Figure 2 Simplified illustration of backscattered signals 7 DIN EN 16090:2012-02 EN 16090:2011 (E) 3 Foreword
13、This document (EN 16090:2011) has been prepared by Technical Committee CEN/TC 133 “Copper and copper alloys”, 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
14、by June 2012, and conflicting national standards shall be withdrawn at the latest by June 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 paten
15、t rights. 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, Icelan
16、d, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 16090:2012-02 EN 16090:2011 (E) 4 Introduction The test by ultrasound described in this standard has the objective of
17、 estimating the dimension of average grain size in copper and copper alloy products. When using this test by ultrasound technique it is important to recognise that the estimation of grain size is not a precise measurement because a metal structure is an aggregate of three-dimensional crystals of var
18、ying sizes and shapes. Clearly, no two areas of observation then can be exactly the same. DIN EN 16090:2012-02 EN 16090:2011 (E) 5 1 Scope This European Standard specifies a method for the estimation of the average grain size of copper and copper alloy products by ultrasound. This standard can be ap
19、plied for seamless round tubes as well as for flat products. This method can be used in place of test methods according to EN ISO 2624, mentioned in the relevant product standards. As reference method and in case of doubt the intercept procedure or planimetric procedure has to be used. 2 Normative r
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