1、a a BRITISH STANDARD Soft soldering fluxes - Classification and requirements - Part 2: Performance requirements The European Standard EN IS0 9454-2:2000 has the status of a British Standard ICs 25.160.50 BS EN IS0 9454-2900 1 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS
2、EN IS0 9454-2:2001 National foreword This British Standard is the official English language version of EN IS0 9454-2:2000. It is identical with IS0 9454-2:1998. Together with BS EN IS0 9455-15:2000, BS EN 29454-1:1994, BS EN 29455-1:1994, and BS EN IS0 9454-2:2001 supersedes BS 5625:1980 which is al
3、ready withdrawn. The UK participation in its preparation was entrusted by Technical Committee NFE/27, Tin and tin alloys, to Subcommittee NFE/27/4, Solders and soldering fluxes, which has the responsibility to: BS EN IS0 9455-611997, BS EN IS0 9455-10:2001, BS EN IS0 9455-13:2000, - - aid enquirers
4、to understand the text; present to the responsible European committee any enquiries on the interpretation, 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
5、 subcommittee can be obtained on request to its secretary. Cross-references The British Standards which 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”,
6、 or by using the “Find facility of the BSI Standards Electronic Catalogue. A British Standard does not purport 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
7、 immunity from legal obligations. This British Standard, having Summary Of pages been oreoared under the This document comprises a front cover, an inside front cover, the EN IS0 title . . . direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the St
8、andards policy and Strategy Committee and comes into effect on 28 August 2001 page, the EN IS0 foreword page, the IS0 title page, pages ii to iv, pages 1 to 7, the annex ZA page, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was
9、last issued. Amendments issued since publication - Amd. No. IDate I Comments I I O BSI 28 August 2001 I I ISBN O 580 34682 X EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IS0 9454-2 April 2000 ICs 25.1 60.50 English version Soft soldering fluxes - Classification and requirements - Part 2: Per
10、formance requirements (IS0 9454-2:1998) Flux de brasage tendre - Classification et caractristiques - Partie 2: Prescriptions de performance (IS0 9454-2:1998) Flumittel zum Weichltel - Einteilung und Anforderungen - Teil 2: Eignungsanforderungen (IS0 9454-2:1998) This European Standard was approved b
11、y CEN on 10 March 2000. CEN members are bound to comply with the CENICENELEC 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 bibliographical references concerning such national standa
12、rds 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 member into its own language and notified to t
13、he 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, Portugal, Spain, Sweden, Switzerland and United
14、 Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Central Secretariat: rue de Stassart, 36 B-1050 Brussels O 2000 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN IS0 94
15、54-2:2000 E EN IS0 9454-2:2000 Foreword The text of the International Standard from Technical Committee ISOlC 44 “Welding and allied processes” of the International Organization for Standardization (ISO) has been taken over as an European Standard by Technical Committee CENTTC 121”Welding”, the secr
16、etariat of which is held by DS. This European Standard shall be given the status of a national standard, either by publication of an identical text of by endorsement, at the latest by October 2000, and conflicting national standards shall be withdrawn at the latest by October 2000. According to the
17、CENICENELEC 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, Norway, Portugal, Spain, Swe
18、den, Switzerland and the United Kingdom. Endorsement notice The text of the International Standard IS0 9454-2:1998 has been approved by CEN as a European Standard without any modification. Note: Normative references to International Standards are listed in annex ZA (normative) o a o INTERNATIONAL ST
19、ANDARD First edition 1998-08-1 5 EN IS0 9454-2:2000 IS0 945412 Soft soldering fluxes - Classification and requirements - Part 2: Performance requirements Flux de brasage tendre - Classification et caractristiques - Pattie 2: Prescriptions de performance Reference number IS0 9454-2:1998(E) EN IS0 945
20、4-2:2000 Contents Page 1 Scope 1 2 Normative references 1 3 Definitions 2 4 Flux condition 2 5 Performance requirements for fluxes 3 Annex A (informative) Bibliography 7 Foreword IS0 (the International Standards Organization) is a worldwide federation of national standards bodies (IS0 members). The
21、work of preparing International Standards is normally carried out through IS0 technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-gover
22、nmental, in liaison with ISO, also take part in the work. IS0 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for vo
23、ting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard IS0 9454-2 was prepared by Technical Committee ISO/TC 44, Welding and allied processes, subcommittee SC1 2, Soldering and brazing materials IS0 9454 consists
24、of the following parts, under the general title Soft soldering fluxes - Classification and requirements: - Part I: Classification, labelling and packaging - Part 2: Performance requirements I Annex A of this part of IS0 9454 is for information only. iii - EN IS0 9454-2:ZOOO Introduction Fluxes assis
25、t molten solder to wet metals surfaces to be joined by removing oxides and related contaminants from the solder and surfaces of the parts during soldering. Fluxes also protect surfaces from oxidization and assist wetting of the base metals by molten solder. Care is necessary when selecting a flux fo
26、r a particular application, in order to ensure an adequate service life of the assembly. Factors such as the ease of residue removal, corrosiveness, possible health and safety hazards and the efficacy of the flux, should all be considered when making the choice. iv EN IS0 9454-22000 Soft soldering f
27、luxes - Classification and requirements - Part 2: Performance requirements 1 Scope This part of IS0 9454 specifies the performance requirements for fluxes in solid, liquid and paste forms intended for use with soft solders. NOTES 1 IS0 9454-1 specifies the requirements for labelling and packaging as
28、 well as the coding system for the classification of the fluxes. 2 Some of the fluxes intended for inert gas and vapour phase soldering may not pass some of the criteria in tables 1 and 2. Requirements for these fluxes should be agreed between the purchaser and the supplier. 2 Normative references T
29、he following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard
30、are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. IS0 9454-1 :1990, Soft soldering fluxes - Classification and requirements - Part 7: Classificatio
31、n, labelling and packaging. IS0 9455-1 :1990, Soft soldering fluxes - Test methods - Part 7: Determination of non-volatile matter, gravimetric Ehit55-2:1 993, Soft soldering fluxes - Test methods - Part 2: Determination of non-volatile matter, ebulliometric method. IS0 9455-3:1992, Soft soldering fl
32、uxes - Test methods - Part 3: Determination of acid value, potentiometric and visual titration methods. IS0 9455-51 992, Soft soldering fluxes - Test methods - Part 5: Copper mirror test. IS0 9455-6:1995, Soft soldering fluxes - Test methods - Part 6: Determination and detection of halide (excluding
33、 fluoride) content. IS0 9455-8:1991, Soft soldering fluxes - Test methods - Part 8: Determination of zinc content. IS0 9455-9: 1993, Soft soldering fluxes - Test methods - Part 9: Determination of ammonia content. IS0 9455-1 0:1998, Soft soldering fluxes - Test methods - Part 70: Flux efficacy tests
34、, solder spread method. IS0 9455-1 1 :1991, Soft soldering fluxes - Test methods - Part 7 7: Solubility of flux residues. IS0 9455-1 2:1992, Soft soldering fluxes - Test methods - Part 72: Steel tube corrosion test. IS0 9455-1 3:1996, Sof soldering fluxes - Test methods - Part 73: Determination of f
35、lux spattering. IS0 9455-1 4:1991, Sof soldering fluxes - Test methods - Part 74: Assessment of tackiness of flux residues. a 1 - EN IS0 9454-2:2000 IS0 9455-1 5: 1 996, Soft soldering fluxes - Test methods - Part 15: Copper corrosion test. IS0 9455-1 6:-1), Soft soldering fluxes - Test methods - Pa
36、rt 16: Flux efficacy tests, wetting balance method. IS0 9455-17:-l), Soft soldering fluxes - Test methods - Part 17: Surface insulation resistance, comb test and electrochemical migration test of flux residues. 3 Definitions For the purposes of this part of IS0 9454, the following definitions apply.
37、 3.1 flux chemical substance in a form which assists molten solder to wet metal surfaces to be joined, by removing oxides and related contaminants from the solder and from the surfaces of the parts during soldering NOTE - Flux may be in solid, liquid or paste form. 3.2 liquid flux solution of a flux
38、 in a suitable liquid solvent 3.3 paste flux solution or uniform dispersion of flux in a suitable viscous medium 3.4 colophony (rosin) hard, natural resin, extracted from the oleoresin of pine trees and refined, consisting of abietic and pimaric acids and their isomers, some organic fatty acids and
39、terpene hydrocarbons NOTE -These natural rosins, or modified rosins, should give a positive reaction to the Liebermann and Storch test l and shall have an acid value greater than 155 mg KOH/g. 3.5 resin general, non-specific, widely accepted term for natural and synthetic resinous products 3.6 activ
40、ator substance which increases the chemical reactivity of a flux 3.7 organic type flux flux which is based on non-rosin organic substances 3.8 inorganic type flux flux containing inorganic acids or alkalis, or their salts. 4 Flux condition Solid fluxes shall be of uniform composition and be free fro
41、m foreign matter or impurities deleterious to the fluxing action. 1) To be published. e 2 EN IS0 9454-2:2000 Liquid fluxes shall be homogeneous and free from sediment. Paste fluxes shall be of a uniform viscous form and of a consistency suitable for application to the surface to be soldered. 5 Perfo
42、rmance requirements for fluxes When tested in accordance with the appropriate test methods given in the various parts of IS0 9455, fluxes shall comply with the requirements given in tables 1 to 3. When determining the acid value for type 2 fluxes in accordance with IS0 9455-3:1992, the value for S i
43、n 3.5 of the method is to be taken as 100. NOTE - It should be noted that, because of the difference between the chemicals in flux types 1 and 2, the values for acid value (see IS0 9455-3), and for halide content (see IS0 9455-6), are expressed on different bases and are not, therefore, comparable.
44、3 - EN IS0 9454-2:2000 Flux classification (in accordance with IS0 9454-1) - Flux code) Performance requirements using test method IS0 9455: Part No?) and2 I 3 I 5 6A I 6D Flux type 1 Resin Flux I Flux I Tolerance based I Tolerance as % I Copper mirror I Halide (chloride I Chromate basis 1 Colophony
45、 (rosin) 2 Non- (resin) colophony Flux classification I Flux code I Performance requirements using test method IS0 9455: Part No. activation on nominal value agreed nominal test bromide or iodide) silver paper for non-volatile acid value in expressed as % (m/m) test content mg KOHIg chloride in 3, t
46、he non-volatile non-volatile content content 1.1.1 1 No f 0,5 f10% Pass O,OI max. Pass added W f 0,5 f10% Pass 0,05 max. Pass Halide activator - 1.2.1 X f 0,5 f 1 o Oh - 0,15 max. - 2 1.1.2 . Y f 0,5 *lo% - 1 ,O max. - z f 0,5 *lo% - l,o - activated 1.2.2 Non-halide 1.1.3 w f 0,5 f 10% Pass 0,Ol max
47、. Pass activated 1.2.3 x f 0,5 *lo% - 0,Ol rnax. Pass (in accorc Flux type 1 Resin NOTES 1 The values for the test in Pari 3 of IS0 9455 apply only to fluxes with acid values greater than 50 mg KOH/g. 2 The test in Pari 10 of IS0 9455 is only applicable to fluxes with non-volatile content equal to o
48、r greater than 1 O YO. 3 The values given for the test in Pari 10 of IS0 9455 apply to flux samples tested on brass test plates for 10 a) and on oxidized copper plates for 1 O b). 1) The activated resin fluxes (types 1.1.2 and 1.1.3, 1.2.2 and 1.2.3) have each been sub-divided into 4 grades designat
49、ed W”, x”, Y“ and “Z, to indicate low, mild, medium and high levels of initial flux activity respectively. 2) A dash (-) in any column signifies that no requirements are specified in this standard for that property for that particular flux . For some special applications a requirement of this property may be specified by the purchaser, provided the details are given in the enquiry and order, andagreed by the supplier. 3) This method is only suitable for determining halide, not halogen contents. 4) This test is not applicable to fluxes whic
