1、ICS 21.040.30Rohrgewinde fr nicht im Gewinde dichtende Verbindungen Teil 2:Prfung mit Grenzlehren (ISO 228-2 : 1987)European Standard EN ISO 228-2 : 2003 has the status of a DIN Standard.A comma is used as the decimal marker.National forewordThis standard has been published in accordance with a deci
2、sion taken by ECISS/TC 29 to adopt, withoutalteration, International Standard ISO 228-2 as a European Standard.The responsible German body involved in its preparation was the Normenausschuss Technische Grundlagen(Fundamentals in Technology Standards Committee), Technical Committee Rohrgewinde.DIN EN
3、 ISO 228-1 and DIN ISO 1502 are the standards corresponding to International Standards ISO 228-1and ISO 1502, respectively, referred to in clause 2 of the EN.AmendmentsISO 228-2 having been adopted as a European Standard, the status of the corresponding DIN Standard(DIN ISO 228-2) has been changed a
4、ccordingly.Previous editionsDIN 259-4: 1965-02, 1976-10; DIN 259-5: 1965-02, 1976-10; DIN ISO 228-2: 1981-05, 1984-12, 1988-07.National Annex NAStandards referred to(and not included in References)DIN EN ISO 228-1 Pipe threads where pressure-tight joints are not made on the threads Part 1: Dimen-sio
5、ns, tolerances and designation (ISO 228-1 : 2000)DIN ISO 1502 ISO general-purpose metric screw threads Gauges and gauging (ISO 1502 : 1996)Ref. No. DIN EN ISO 228-2 : 2003-05English price group 12 Sales No. 111209.03DEUTSCHE NORMEN ISO 228-2EN comprises 15 pages. No part of this standard may be repr
6、oduced without the 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).Pipe threads where pressure-tight joints are not madeon the threadsPart 2: Verification by means of limit
7、gauges(ISO 228-2 : 1987)English version of DIN EN ISO 228-2May 2003Supersedes DIN ISO 228-2,July 1988 edition.English versionICS 21.040.30Management Centre: rue de Stassart 36, B-1050 BrusselsEuropean Committee for StandardizationComit Europen de NormalisationEuropisches Komitee fr Normung 2003. CEN
8、 All rights of exploitation in any form and by any meansreserved worldwide for CEN national members.Ref. No. EN ISO 228-2 : 2003 EFiletages de tuyauterie pour raccorde-ment sans tanchit dans le filet Partie 2: Vrification par calibres limites (ISO 228-2 : 1987)Rohrgewinde fr nicht im Gewindedichtend
9、e Verbindungen Teil 2:Prfung mit Grenzlehren(ISO 228-2 : 1987)This European Standard was approved by CEN on 2002-12-27.CEN members are bound to comply with the CEN/CENELEC Internal Regulationswhich stipulate the conditions for giving this European Standard the status of anational standard without an
10、y alteration.Up-to-date lists and bibliographical references concerning such national stand-ards may be obtained on application to the Management Centre or to any CENmember.The European Standards exist in three official versions (English, French, German).A version in any other language made by trans
11、lation under the responsibility of aCEN member into its own language and notified to the Management Centre hasthe same status as the official versions.CEN members are the national standards bodies of Austria, Belgium, the CzechRepublic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ir
12、e-land, Italy, Luxembourg, Malta, the Netherlands, Norway, Portugal, Slovakia,Spain, Sweden, Switzerland, and the United Kingdom.EN ISO 228-2February 2003Pipe threads where pressure-tight joints are notmade on the threadsPart 2: Verification by means of limit gauges(ISO 228-2 : 1987)Page 2EN ISO 228
13、2 : 2003ForewordInternational StandardISO 228-2 : 1987 Pipe threads where pressure-tight joints are not made on the threads Part 2: Verificationby means of limit gauges,which was prepared by ISO/TC 5 Ferrous metal pipes and metallic fittings of the International Organizationfor Standardization, has
14、 been adopted by Technical Committee ECISS/TC 29 Steel tubes and fittings for steeltubes, the Secretariat of which is held by UNI, as a European Standard.This European Standard shall be given the status of a national standard, either by publication of an identicaltext or by endorsement, and conflict
15、ing national standards withdrawn, by August 2003 at the latest.In accordance with the CEN/CENELEC Internal Regulations, the national standards organizations of the follow-ing countries are bound to implement this European Standard:Austria, Belgium, the Czech Republic, Denmark, Finland, France, Germa
16、ny, Greece, Hungary, Iceland, Ireland,Italy, Luxembourg, Malta, the Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland, and theUnited Kingdom.Endorsement noticeThe text of the International Standard ISO 228-2 : 1987 was approved by CEN as a European Standard withoutany modification.
17、Page 3EN ISO 228-2 : 2003Page 4EN ISO 228-2 : 2003Page 5EN ISO 228-2 : 2003Page 6EN ISO 228-2 : 2003Page 7EN ISO 228-2 : 2003Page 8EN ISO 228-2 : 2003Page 9EN ISO 228-2 : 2003Page 10EN ISO 228-2 : 2003Page 11EN ISO 228-2 : 2003Page 12EN ISO 228-2 : 2003Page 13EN ISO 228-2 : 2003Page 14EN ISO 228-2 : 2003Page 15EN ISO 228-2 : 2003
