1、Lh24bb 0439OLB 767 BRITISH STANDARD Soft soldering fluxes - Test methods 3s EN IS0 Part 12. Steel tube corrosion test The European Standard EN IS0 9455-12 : 1994 has the status of a British Standard UDC 621.791.5.048 : 620.193.4 B455-12 : 1994 W i1624669 0439039 bT3 W BS EN IS0 945512 : 1994 Coopera
2、ting organizations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following countries: Austria Belgium Denmark Finland France Germany Greece Iceland Ireland Italy Luxembourg Netherla
3、nds Norway Portugal Spain Sweden Switzerland United Kingdom Oesterreichisches Normungsinstitut Institut belge de normalisation Dansk Standard Suomen Standardisoimisiito, r. y. Association franaise de normalisation Deutsches Institut fr Normung e.V. Hellenic Organization for Standardization lchnologi
4、cal Institute of Iceland National Standards Authority of Ireland Ente Nazionale Italiano di Unificazione Inspection du Travail et des Mines Nederlands Normalisatie-instituut Norges Standardiseringsforbund Instituto Portugus da Qualidade Asociacin Espaola de Normalizacin y Certificacin Standardiserin
5、gskommissionen i Sverige Association suisse de normalisation British Standards Institution This British Standard, having been prepared under the direction of the Non-ferrous Metals Standards Policy Committee, was published under the authority of the Amendments issued since publication Standards Boar
6、d and comes into effect on Amd. No. 15 December 1994 O BSI 1994 The following BSI references relate to the work on this standard: Committee reference NFM/27 Draft for comment 91/40035 DC ISBN O 580 22885 I Date I Text affected 1624bb 0439020 315 BS EN IS0 9465-12 : 1994 Contents Cooperating organiza
7、tions National foreword Page Inside front cover i Foreword Method 1 Scope 2 Normative references 3 Principle 4 Materials 5 Apparatus 6 Procedure 2 3 7 Assessment and expression of results 5 8 Qst report 5 Annex ZA (normative) Normative references to international publications with their relevant Eur
8、opean publications 6 National annex NA (informative) Committees responsible Inside back cover National foreword This British Standard has been prepared under the direction of the Non-ferrous Metals Standards Policy Committee and is the English language version of EN IS0 9455-12 : 1994, Soft soldemrz
9、gjluxes - Est methods - Part 12: Steel tube corrosion test, published by the European Committee for Standardization (CEN). It is identical with IS0 9455-12 : 1992 Soft solderingfluxes - %t methods - Part 12: Steel tube corrosion test, published by the International Organization for Standardization (
10、ISO). Compliance with a British Standard does not of itself confer immunity from legal obligations. i m 1624667 0439023 251 m EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IS0 9455-12 September 1994 UM: 621.791.5.048 : 620.193.4 Descriptors: Soldering, soldering fluxes, corrosion tests, test
11、specimens, steel tubes English version Soft soldering fluxes - Test methods - Part 12: Steel tube corrosion test (IS0 9455-12 1992) Flux de brasage tendre - Mthodes dessai - Prfverfahren - Part 12: Essai de corrosion des tubes dacier FluBmittel zum Weichlten - %il 12: Stahl-Rhrchen-Korrosionstest (I
12、S0 9455-12 1992) (IS0 9455-12 1992) This European Standard was approved by CEN on 1994-09-06. CEN members are bound to comply with the CENEENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date
13、 lists and bibliographical 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 r
14、esponsibility of a CEN 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, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, No
15、rway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B- 1050 Brussels O 1994 Copyright reserved to CEN members Ref. No. EN IS0 9455-12 : 1994 E
16、page 2 EN IS0 945512 : 1994 Foreword This European Standard was taken over by the khnid Committee CENITC 121, Welding, from the work of ISO/X 44, Soft soldering fluxes - lst methods, of the International Standards Organization CENITC 121 had decided to submit the final draft for Unique Acceptance Pr
17、ocedure. The result was positive. 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 March 1995, and conflicting national standards shd be withdrawn at the latest by March 1995. According to the CENK
18、ENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finiand, France, Germany, Greece, Iceland, Ireland, Itaiy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. (Iso). Lb24bb9 04390
19、23 024 a page 3 EN IS0 9455-12 : 1994 Soft soldering fluxes - Test methods - Part 12: Steel tube corrosion test 1 Scope This part of IS0 9455 specifies a qualitative method for assessing the corrosive properties of flux resi- dues and flux vapours towards mild steel. The test is applicable to all fl
20、uxes, although it is primarily in- tended to be used for fluxes of type 1, as defined in IS0 9454-1. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of IS0 9455. At the time of publication, the editions indic
21、ated were valid. All standards are subject to revision, and parties to agreements based on this part of IS0 9455 are encouraged to investi- gate the possibility of applying the most recent edi- tions of the standards indicated below. Members of IEC and IS0 maintain registers of currently valid Inter
22、national Standards. IS0 9329-1:1989, Seamless sfeel tubes for pressure purposes - Technical delivery conditions - Part 1: Unalloyed steels with specified room temperature properties. IS0 9454-1 : 1990, Soft soldering fluxes - Classifica- tion and requirements - Part 1: Classification, labelling and
23、packaging. 3 Principle The flux under test is deposited on to the inside walls of a clean mild-steel tube. After conditioning the fluxed tube for a specified time under controlled temperature and humidity conditions, the severity of the resulting corrosion is assessed visually by comparison with a s
24、tandard chart. 4 Materials 4.1 leum ether. Degreasing solvent, such as acetone or petro- 4.2 Silicon carbide cloth, 180 grade 5 Apparatus Usual laboratory apparatus and, in particular, the follow in g . 5.1 Copper block, as in figure 1. The grooves, which are to accommodate the steel tubes during th
25、e test, are to be freshly tinned prior to the test. The diameter of the grooves shall be 0.5 mm larger than the diameter of the steel tubes used. 5.2 Oven, suitable for heating the copper block (5.1) to 300 “C 10 “C. 5.3 Laboratory thermometer, having a O “C to 360 “C range. Alternatively, a thermoc
26、ouple and its associated temperature indicator may be used. 5.4 Temperaturelhumidity oven, capable of main- taining a temperature of 23 “C b) the test method used (.e. reference to this pari of IS0 9455); c) the result obtained rom the test (.e. the example in figure 2 which most closely corresponds
27、 to the average level of corrosion found in the test); d) any usual features noted in the test; e) details of any operation not included in the part o IS0 9455 or regarded as optional. a) No corrosion b) Spot corrosion * Fax: 0181 996 7001. In response to orders for international standards, it is BS
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30、f standards. For details of these and other benefits contact Customer Services, Membership at Chiswick: Tel: 0181 996 7002; Fax: 0181 996 7001. Copyright Copyright subsists in all BSI publications and no part may be reproduced in any form without the prior permission in writing of BSI. This does not
31、 preclude the free use, in the course of implementing the standard of necessary details such as symbols and size, type or grade designations including use by incorporation into computer programs, but where these details are reproduced including without limitation in printed form, in computer program
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