1、August 2013 Translation by DIN-Sprachendienst.English price group 13No 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).ICS
2、 25.160.50!%($H“2050137www.din.deDDIN EN ISO 9455-16Soft soldering fluxes Test methods Part 16: Flux efficacy test, wetting balance method (ISO 9455-16:2013);English version EN ISO 9455-16:2013,English translation of DIN EN ISO 9455-16:2013-08Flussmittel zum Weichlten Prfverfahren Teil 16: Bestimmun
3、g der Wirksamkeit des Flussmittels, Verfahren zur Messung derBenetzungskraft (ISO 9455-16:2013);Englische Fassung EN ISO 9455-16:2013,Englische bersetzung von DIN EN ISO 9455-16:2013-08Flux de brasage tendre Mthodes dessai Partie 16: Essai defficacit du flux, mthode la balance de mouillage(ISO 9455-
4、16:2013);Version anglaise EN ISO 9455-16:2013,Traduction anglaise de DIN EN ISO 9455-16:2013-08SupersedesDIN EN ISO 9455-16:2001-11www.beuth.deDocument comprises 25 pagesIn case of doubt, the German-language original shall be considered authoritative.07.13 DIN EN ISO 9455-16:2013-08 2 A comma is use
5、d as the decimal marker. National foreword This document (EN ISO 9455-16:2013) has been prepared by Technical Committee ISO/TC 44 “Welding and allied processes” in collaboration with Technical Committee CEN/TC 121 “Welding” (Secretariat: DIN, Germany). The responsible German body involved in its pre
6、paration was the Normenausschuss Schweien und verwandte Verfahren (Welding and Allied Processes Standards Committee), Joint Committee NA 092-00-08 AA Weichlten. The ISO 9455-1 to ISO 9455-17 series of standards which specify methods of determining the numerous properties of soft soldering fluxes has
7、 been drawn up in answer to the increase in quality requirements for such products. The DIN Standards corresponding to the International Standards referred to in Clause 2 of this standard are as follows: ISO 1634-1 DIN EN 1652 ISO 9453 DIN EN ISO 9453 ISO 9454-1 DIN EN 29454-1 IEC 60068-2-20:2008 DI
8、N EN 60068-2-20:2008 IEC 60068-2-54 DIN EN 60068-2-54 IEC 60068-2-78:2001 DIN EN 60068-2-78:2002 Amendments This standard differs from DIN EN ISO 9455-16:2001-11 as follows: a) normative references have been updated; b) Clause 3 “Symbols” has been included; c) Subclause 6.2 “Solder bath” has been re
9、vised; d) the formula for the calculation of the force at point B in Figure 1 has been modified; e) Clause 12 “Test report” has been revised; f) the standard has been editorially revised. Previous editions DIN 32506-4: 1981-07 DIN EN ISO 9455-16: 2001-11 DIN EN ISO 9455-16:2013-08 3 National Annex N
10、A (informative) Bibliography DIN EN 1652, Copper and copper alloys Plate, sheet, strip and circles for general purposes DIN EN ISO 9453, Soft solder alloys Chemical compositions and forms DIN EN 29454-1, Soft soldering fluxes Classification and requirements Part 1: Classification, labelling and pack
11、aging DIN EN 60068-2-20:2009-02, Environmental testing Part 2-20: Tests Test T: Test methods for solderability and resistance to soldering heat of devices with leads DIN EN 60068-2-54, Environmental testing Part 2-54: Tests Test Ta: Solderability testing of electronic components by the wetting balan
12、ce method DIN EN 60068-2-78:2002-09, Environmental testing Part 2-78: Tests Test Cab: Damp heat, steady state DIN EN ISO 9455-16:2013-08 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 9455-16 April 2013 ICS 25.160.50 Supersedes EN ISO 9455-16:2001English
13、Version Soft soldering fluxes - Test methods - Part 16: Flux efficacy test, wetting balance method (ISO 9455-16:2013) Flux de brasage tendre - Mthodes dessai - Partie 16: Essai defficacit du flux, mthode la balance de mouillage (ISO 9455-16:2013) Flussmittel zum Weichlten - Prfverfahren - Teil 16: B
14、estimmung der Wirksamkeit des Flussmittels, Verfahren zur Messung der Benetzungskraft (ISO 9455-16:2013) This European Standard was approved by CEN on 2 February 2013. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European St
15、andard 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 CEN member. This European Standard exists in three official versions (Engl
16、ish, 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 versions. CEN members are the national standards bodies of Austria, Belgium,
17、Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland
18、, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No
19、. EN ISO 9455-16:2013: EEN ISO 9455-16:2013 (E) Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Symbols 4 4 Principle 5 5 Reagents .5 6 Apparatus .5 7 Test pieces .6 8 Procedure .6 8.1 Preparation of the test pieces 6 8.2 Test method 6 9 Reference value using standard flux .7 10 Presen
20、tation of results 7 11 Calculation and expression of results .9 12 Test report 10 Annex A (normative) Method for the preparation of standard rosin (colophony) based liquid fluxes having 25 % (by mass) non-volatile content .11 Annex B (normative) Method for the production of test pieces with a contro
21、lled-contaminated surface for the wetting balance test (artificial sulfidation method) 13 2DIN EN ISO 9455-16:2013-08 EN ISO 9455-16:2013 (E) Foreword This document (EN ISO 9455-16:2013) has been prepared by Technical Committee ISO/TC 44 “Welding and allied processes” in collaboration with Technical
22、 Committee CEN/TC 121 “Welding” 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 by October 2013, and conflicting national standards shall be withdrawn at the
23、latest by October 2013. 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 patent rights. This document supersedes EN ISO 9455-16:2001. EN ISO 9455 cons
24、ists of the following parts, under the general title Soft soldering fluxes Test methods: Part 1: Determination of non-volatile matter, gravimetric method Part 2: Determination of non-volatile matter, ebulliometric method Part 3: Determination of acid value, potentiometric and visual titration method
25、s Part 5: Copper mirror test Part 6: Determination and detection of halide (excluding fluoride) content Part 8: Determination of zinc content Part 9: Determination of ammonia content Part 10: Flux efficacy test, solder spread method Part 11: Solubility of flux residues Part 13: Determination of flux
26、 spattering Part 14: Assessment of tackiness of flux residues Part 15: Copper corrosion test Part 16: Flux efficacy test, wetting balance method Part 17: Surface insulation resistance comb test and electrochemical migration test of flux residues According to the CEN-CENELEC Internal Regulations, the
27、 national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia
28、, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 9455-16:2013 has been approved by CEN as EN ISO 9455-16:2013 without any modification. 3DIN EN ISO 9455-16
29、:2013-08 1 ScopeThis part of ISO 9455 specifies a method for the assessment of the efficacy of a soft soldering flux, known as the wetting balance method. It gives a qualitative assessment of the comparative efficacy of two fluxes (for example, a standard and a test flux), based on their capacity to
30、 promote wetting of a metal surface by liquid solder. The method is applicable to all flux types in liquid form classified in ISO 9454-1.NOTE It is hoped that future developments using improved techniques for obtaining a reproducible range of test surfaces will enable this method for assessing flux
31、efficacy to be quantitative. For this reason, several alternative procedures for preparing the surface of the test piece are included in the present method.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the
32、edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 9453, Soft solder alloys Chemical compositions and formsISO 9454-1, Soft soldering fluxes Classification and requirements Part 1: Classification, labelling and packagin
33、gIEC 60068-2-20:2008, Environmental testing Part 2-20: Tests Test T: Test methods for solderability and resistance to soldering heat of devices with leadsIEC 60068-2-54, Environmental testing Part 2-54: Tests Test Ta: Solderability testing of electronic components by the wetting balance methodIEC 60
34、068-2-78:2001, Environmental testing Part 2-78: Tests; Test Cab: Damp heat, steady state3 Symbolsd depth of immersion, in millimetres, of the test piece below the undisturbed solder levelA cross sectional area, in square millimetres, of the test piece at the solder line density, in grams per millili
35、tre, of the solder under test at the test temperatureF wetting force, in millinewtonst0time at which the test piece first makes contact with the surface of the liquid solder in the batht1time at which the solder starts to wet the test piece (point A, see Figure 1), at which point the trace begins to
36、 fallt2time at which the recorded force is equal to the upward force due to buoyancyt3time at which the trace crosses the reference lineEN ISO 9455-16:2013 (E) 4DIN EN ISO 9455-16:2013-08 4 PrincipleThe efficacy of the liquid flux under test is compared with that of a standard liquid flux, using a w
37、etting balance in conjunction with a specified test piece, appropriate to the class of flux under test.5 ReagentsUse only reagents of recognized analytical quality and only distilled or deionized water.5.1 Acid cleaning solution, prepared as follows:Add cautiously, while stirring, 75 ml of sulfuric
38、acid ( = 1,84 g/ml) to 210 ml of water and mix. Cool the solution to room temperature. Add 15 ml of nitric acid ( = 1,42 g/ml) and mix thoroughly.5.2 Acetone.5.3 Propan-2-ol, complying with the following requirements: propan-2-ol: 99,5 % (by mass) minimum; acid content: 0,002 % (by mass) maximum; no
39、n-volatile content: 0,2 % (by mass) maximum.Isopropyl alcohol (also propan-2-ol, 2-propanol or the abbreviation IPA) is a common name for this chemical compound, which has the molecular formula C3H8O.6 ApparatusUsual laboratory apparatus and, in particular, the following.6.1 Wetting balance and anci
40、llary instrumentation, as described in IEC 60068-2-54.Calibrate the apparatus in accordance with the manufacturers instructions.6.2 Solder bath.As a minimum, the bath temperature shall be capable of being maintained at a temperature corresponding to the liquidus temperature of the alloy under test p
41、lus 35 C. The test temperature shall be reported in the test report.The dimensions of the solder bath shall be such that no portion of the test piece (see Clause 7) is less than 15 mm from the wall of the bath and the depth of the liquid solder in the bath shall be not less than 30 mm.The solder use
42、d for the test and the test temperature shall be one of the following: Sn60Pb40 (see ISO 9453) at 235 C 3 C; Sn96,5Ag3,0Cu0,5 (see ISO 9453) at 255 C 3 C; any other solder and temperature combinations as agreed between the customer and the flux supplier.6.3 Acid-free filter paper.EN ISO 9455-16:2013
43、 (E) 5DIN EN ISO 9455-16:2013-08 7 Test piecesThe test pieces shall be made of copper.EXAMPLE Test pieces are cut from a rectangular copper sheet. The dimensions of each test piece are as follows: width: 10,0 mm 0,1 mm; length: constant between 15 mm and 30 mm, to suit the equipment used; thickness:
44、 either 0,10 mm 0,02 mm or 0,30 mm 0,05 mm.When testing fluxes of type 1 or 2 (as defined in ISO 9454-1), full details of the test pieces shall be given in the test report.The sheet or other article used for preparing the test pieces shall be clean and free from contamination. In order to obtain acc
45、urate results, the test pieces shall be cut cleanly without leaving significant burrs.8 Procedure8.1 Preparation of the test pieces8.1.1 CleaningThe test pieces shall be handled with clean tongs throughout. Select sufficient test pieces (see Clause 7) to allow 10 per test flux and 10 per standard fl
46、ux. Degrease them in acetone (5.2) and allow to dry. Immerse them for 20 s in the acid cleaning solution (5.1) at room temperature. Remove the test pieces from the acid cleaning solution and wash for about five seconds under running tap water. Rinse with distilled or deionized water then acetone (5.
47、2) and dry with acid-free filter paper (6.3).If required, the test pieces may be stored in acetone after rinsing them in deionized water. When needed, they shall be removed from the acetone and dried with acid-free filter paper (6.3).Subject all the test pieces to one of the ageing procedures given
48、in 8.1.2 to 8.1.4 as agreed between the flux supplier and the customer.8.1.2 Ageing the surface by sulfidation processCarry out the procedure given in Annex B on all the cleaned test pieces (see 8.1.1).8.1.3 Steam ageing the surfaceCarry out the steam ageing procedure given in IEC 60068-2-20:2008, 4.1.1, ageing procedure 1b, for a period of 4 h on all the cleaned test pieces (see 8.1.1).8.1.4 Damp-heat, steady-state ageingSubject all t
