BS-EN-12475-2-1998 BS-7225-1.3-1998.pdf
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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 12475-2:1998 BS 722
2、5-1-1.3:1998 The European Standard EN 12475-2:1998 has the status of a British Standard ICS 81.080 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Classification of dense shaped refractory products Part 2: Basic products containing less than 7 % residual carbon Licensed Copy:
3、sheffieldun sheffieldun, na, Sat Oct 28 08:57:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI This British Standard, having been prepared under the direction of the Sector Board for Materials and Chemicals, was published under the authority of the Standards Board and comes into effect on 15 June 1998
4、BSI 1998 ISBN 0 580 29379 3 BS EN 12475-2:1998 Amendments issued since publication Amd. No.DateText affected National foreword This British Standard is the English language version of EN 12475-2:1998. It supersedes BS 7225-1-1.3:1989 which is withdrawn. The UK participation in its preparation was en
5、trusted by Technical Committee RPI/1, Refractory products and materials, to Subcommittee RPI/1/1, Sampling and physical testing of refractory materials, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpret
6、ation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards whic
7、h implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled International Standards Correspondence Index, or by using the Find facility of the BSI Standards Electronic Catalogue. A British Standard does not pu
8、rport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front
9、 cover, the EN title page, pages 2 to 4, an inside back cover and a back cover. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:57:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung C
10、entral Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12475-2:1998 E EUROPEAN STANDARDEN 12475-2 NORME EUROPE ENNE EUROPA ISCHE NORM February 1998 ICS 81.080 Descriptors: Refra
11、ctory materials, shaped refractories, dense shaped refractory products, nomenclature, classifications, designation, raw materials, magnesia refractories, dolomite: minerals, lime, chromate, refractories English version Classification of dense shaped refractory products Part 2: Basic products contain
12、ing less than 7% residual carbon Classification des produits re fractaires faonne s denses Partie 2: Produits basiques contenant moins de 7 % de carbone re siduel Klassifizierung dichter geformter feuerfester Erzeugnisse Teil 2: Basische Erzeugnisse mit einem Massenanteil an Restkohlenstoff kleiner
13、als 7 % This European Standard was approved by CEN on 18 January 1998. 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 bibliograph
14、ical references concerning such national standards may be obtained on application to the Central Secretariat 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
15、 member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway,
16、Portugal, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:57:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 2 EN 12475-2:1998 BSI 1998 Foreword This European Standard has been prepared by Technical Committee CEN/TC 187, Refractory products
17、 and materials, the Secretariat of which is held by BSI. 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 August 1998, and conflicting national standards shall be withdrawn at the latest by August
18、1998. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norwa
19、y, Portugal, Spain, Sweden, Switzerland and the United Kingdom. EN 12475, Classification of dense shaped refractory products consists of four parts: Part 1: Alumina-silica products; Part 2: Basic products containing less than 7 % residual carbon; Part 3: Basic products containing from 7 % to 30 % re
20、sidual carbon; Part 4: Special products. Contents Page Foreword2 1Scope3 2Normative references3 3Classification3 4Designation3 Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:57:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 3 EN 12475-2:1998 BSI 1998 1 Scope This part of EN 12475 spec
21、ifies the classification and designation of dense shaped basic refractory products with or without antioxidant additives. Products containing equal to or more than 7 % residual carbon after coking are excluded from this classification. The classification is applicable to dense shaped products with o
22、r without metal plates and reinforcement. NOTE 1EN 12475-3 covers the classification of dense shaped basic products containing from 7 % to 30 % residual carbon. NOTE 2All bricks can be encased in metal plate and all unfired bricks can be reinforced by means of an internal metal plate. 2 Normative re
23、ferences This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of
24、these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies. EN ISO 10058, Magnesites and dolomites Chemical analysis. prEN 955-3, Chemical analysis of refractory products
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