BS EN 61086-3-1-2004 Coatings for loaded printed wire boards (conformal coatings) - Specifications for individual materials - Coatings for general purpose (class 1) high reliabilit.pdf

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1、BRITISH STANDARD BS EN 61086-3-1:2004 Coatings for loaded printed wire boards (conformal coatings) Part 3-1: Specifications for individual materials Coatings for general purpose (Class 1), high reliability (class 2) and aerospace (Class 3) The European Standard EN 61086-3-1:2004 has the status of a

2、British Standard ICS 29.035.20 BS EN 61086-3-1:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 21 May 2004 BSI 21 May 2004 ISBN 0 580 43788 4 National foreword This British Standard is the official English language version of EN 61086-3-

3、1:2004. It is identical with IEC 61086-3-1:2004. It supersedes BS EN 61086-3-1:1995 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee GEL/15, Insulating material, to Subcommittee GEL/15/3, Material specifications, which has the responsibility to: A list

4、 of organizations represented on this 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 Catalogue under the section entitled “International Stand

5、ards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard

6、 does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European d

7、evelopments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 10, a blank page and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issue

8、d since publication Amd. No. Date CommentsEUROPEAN STANDARD EN 61086-3-1 NORME EUROPENNE EUROPISCHE NORM April 2004 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: ru

9、e de Stassart 35, B - 1050 Brussels 2004 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61086-3-1:2004 E ICS 29.035.20 Supersedes EN 61086-3-1:1995English version Coatings for loaded printed wire boards (conformal coatings) Part

10、3-1: Specifications for individual materials - Coatings for general purpose (Class 1), high reliability (Class 2) and aerospace (Class 3) (IEC 61086-3-1:2004) Revtements appliqus sur les cartes de cblage imprimes (revtements enrobants) Partie 3-1: Spcifications pour matriaux particuliers - Revtement

11、s usage gnral (Classe 1), pour hautes performances (Classe 2) et pour larospatiale (Classe 3) (CEI 61086-3-1:2004) Beschichtungen fr bestckte Leiterplatten (conformal coatings) Teil 3-1: Bestimmungen fr einzelne Werkstoffe - Beschichtungen fr allgemeine Zwecke (Klasse I), fr hohe Zuverlssigkeit (Kla

12、sse II) und fr die Luftfahrt (Klasse III) (IEC 61086-3-1:2004) This European Standard was approved by CENELEC on 2004-03-01. CENELEC 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 standar

13、d without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other

14、language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech Republic, Denmark, Est

15、onia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 68016-3-1:0240 - - 2 Foreword The text of document 15C/1545/FDIS, future editio

16、n 2 of IEC 61086-3-1, prepared by SC 15C, Specifications, of IEC TC 15, Insulating materials, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61086-3-1 on 2004-03-01. This European Standard supersedes EN 61086-3-1:1995. This edition includes the following significant

17、 technical changes from EN 61086-3-1:1995: a) requirements for cleaning have been added; b) new properties based on modifications to EN 61086-2 have been added; c) a Class 3 material for aerospace applications has been included. The following dates were fixed: latest date by which the EN has to be i

18、mplemented at national level by publication of an identical national standard or by endorsement (dop) 2004-12-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2007-03-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the Internat

19、ional Standard IEC 61086-3-1:2004 was approved by CENELEC as a European Standard without any modification. _ Page2 EN6108631:2004160-68-31 EI:C0024 7 INTRODUCTION This International Standard forms part of a series under the general title Coatings for loaded printed wire boards (conformal coatings) T

20、he series consists of three parts: Part 1: Definitions, classification and general requirements (IEC 61086-1) Part 2: Methods of tests (IEC 61086-2) Part 3: Specifications for individual materials (IEC 61086-3) Page3 EN6108631:2004160-68-31 EI:C0024 9 COATINGS FOR LOADED PRINTED WIRE BOARDS (CONFORM

21、AL COATINGS) Part 3-1: Specifications for individual materials Coatings for general purpose (Class 1), high reliability (Class 2) and aerospace (Class 3) 1 Scope This part of IEC 61086 gives the property requirements for electrical insulating materials suitable for application as coatings for loaded

22、 printed wire boards (conformal coatings). Materials which conform to this specification meet established levels of performance. However, the selection of a material by a user for a specific application should be based on the actual requirements necessary for adequate performance in that application

23、 and not based on this specification alone. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any ame

24、ndments) applies. IEC 61086-1:Coatings for loaded printed wire boards (conformal coatings) Part 1: Definitions, classification and general requirements IEC 61086-2:Coatings for loaded printed wire boards (conformal coatings) Part 2: Methods of tests 1 3 Designation The designation system for these m

25、aterials is given in IEC 61086-1. 4 Property requirements The materials shall comply with the general requirements of Clause 5 of IEC 61086-1. When tested with the relevant method described in IEC 61086-2, the material shall comply with the requirements of Tables 2 to 5 and the appropriate section o

26、f Table 1. 1To be published. Page4 EN6108631:2004160-68-31 EI:C0024 11 Table 1 Test specimen A Table 1a Class 1 Procedure (Subclause of IEC 61086-2) Stage Test property (Subclause of IEC 61086-2) Number of samples (identification) Requirement Cleaning (3.1.2) Extract conductivity or ionic content (3

27、.1.2) All 50 S m 1 or 1,55 g cm 2NaCl a Before coating Thickness (7.2) 10 (1-10) Record board thickness Coating 20 (1-20) Visual examination (7.1) 20 (1-20) See b Thickness (7.2) 10 (1-10) See Table 5 Coating (3.1) After coating, before exposure Fluorescence (7.3) 20 (1-20) Visible if required 20 (1

28、-20) Visual examination (7.1) 20 (1-20) See b Thermal cycle (4.1) After exposure Adhesion 20 (1-20) There shall be no flaking or de- lamination of the coated film 20 (1-20) Visual examination (7.1) 20 (1-20) See b Thermal shock (4.2) After exposure Adhesion 20 (1-20) There shall be no flaking or de-

29、 lamination of the coated film 5 (1-5) During exposure Insulation resistance (6.3) 5 (1-5) Not less than 1 10 9 Damp heat (Moisture resistance:4.3.3) After exposure Breakdown voltage (6.1) 5 (1-5) Report breakdown voltage aMuch of the commercially available equipment is calibrated in units of microg

30、ram per square inch. In this case, 1,5 g cm 2is equivalent to 10 g in 2 . b Visual examination requirement: there shall be no voids, holes, wrinkles, streaks, cracking, blistering or peeling of the coating, nor discoloration of the copper conductors. Page5 EN6108631:2004160-68-31 EI:C0024 13 Table 1

31、b Class 2 Procedure (Subclause of IEC 61086-2) Stage Test property (Subclause of IEC 61086-2) Number of samples (identification) Requirement Cleaning (3.1.2) Extract conductivity or ionic content (3.1.2) All 50 S m 1 or 1,55 g cm 2NaCl a Before coating Thickness (7.2) 10 (1-10) Record board thicknes

32、s Coating 20 (1-20) Visual examination (7.1) 20 (1-20) See b Thickness (7.2) 10 (1-10) See Table 5 Coating (3.1) After coating, before exposure Fluorescence (7.3) 20 (1-20) Visible if required 20 (1-20) Visual examination (7.1) 20 (1-20) See b Thermal cycle (4.1) After exposure Adhesion 20 (1-20) Th

33、ere shall be no flaking or de- lamination of the coated film 20 (1-20) Visual examination (7.1) 20 (1-20) See b Thermal shock (4.2) After exposure Adhesion 20 (1-20) There shall be no flaking or de- lamination of the coated film 5 (1-5) During exposure Insulation resistance (6.3) 5 (1-5) Not less th

34、an 1 10 9 Damp heat (Moisture resistance:4.3.3) After exposure Breakdown voltage (6.1) 5 (1-5) Report breakdown voltage 5 (6-10) During exposure Insulation resistance (6.3) 5 (6-10) Not less than 1 10 9 Salt mist (4.3.4) After exposure Breakdown voltage (6.1) 5 (6-10) Report breakdown voltage aThe m

35、onitor of cleaning equipment may be calibrated in g in 2NaCl. In this case, 1,5 g cm 2is equivalent to 10 g in 2 . bVisual examination requirement: there shall be no voids, holes, wrinkles, streaks, cracking, blistering or peeling of the coating, nor discoloration of the copper conductors. Page6 EN6

36、108631:2004160-68-31 EI:C0024 15 Table 1c Class 3 Procedure (Subclause of IEC 61086-2) Stage Test property (Subclause of IEC 61086-2) Number of samples (identification) Requirement Cleaning (3.1.2) Extract conductivity or ionic content (3.1.2) All 50 S m 1 or 1,55 g cm 2NaCl a Before coating Thickne

37、ss (7.2) 10 (1-10) Record board thickness Coating 20 (1-20) Visual examination (7.1) 20 (1-20) See b Thickness (7.2) 10 (1-10) See Table 5 Coating (3.1) After coating, before exposure Fluorescence (7.3) 20 (1-20) Visible if required 20 (1-20) Visual examination (7.1) 20 (1-20) See b Thermal cycle (4

38、.1) After exposure Adhesion 20 (1-20) There shall be no flaking or de- lamination of the coated film 20 (1-20) Visual examination (7.1) 20 (1-20) See b Thermal shock (4.2) After exposure Adhesion 20 (1-20) There shall be no flaking or de- lamination of the coated film 5 (1-5) During exposure Insulat

39、ion resistance (6.3) 5 (1-5) Not less than 1 10 9 Damp heat (moisture resistance:4.3.3) After exposure Breakdown voltage (6.1) 5 (1-5) Report breakdown voltage 5 (6-10) During exposure Insulation resistance (6.3) 5 (6-10) Not less than 1 10 9 Salt mist (4.3.4) After exposure Breakdown voltage (6.1)

40、5 (6-10) Report breakdown voltage 5 (11-15) During exposure Insulation resistance (6.3) 5 (11-15) Not less than 1 10 9 Cold/pressure/damp heat (4.3.5) After exposure Breakdown voltage (6.1) 5 (11-15) Report breakdown voltage aThe monitor of cleaning equipment may be calibrated in g in 2NaCl. In this

41、 case, 1,5 g cm 2is equivalent to 10 g in 2 . bVisual examination requirement: there shall be no voids, holes, wrinkles, streaks, cracking, blistering or peeling of the coating, nor discoloration of the copper conductors. Page7 EN6108631:2004160-68-31 EI:C0024 17 Table 2 Test specimen B Procedure (S

42、ubclause of IEC 61086-2) Stage Test property (Subclause of IEC 61086-2) Number of samples (identification) Requirement Cleaning (3.1.2) Ionic content (3.1.2) 10 Visual examination (7.1) 5 (1-5) See a Tackiness (7.4) 5 (1-5) The coating shall be non tacky Coating (3.1) After coating, before exposure

43、Flexibility (7.5): 6 mm mandrel Class I; 3 mm mandrel Class II and Class III 5 (1-5) There shall be no cracking or crazing Visual examination (7.1) 5 (6-10) Seea Thermal shock (4.2) After exposure Flexibility (7.5) : 6 mm mandrel Class I; 3 mm mandrel Class II and Class III 5 (6-10) There shall be n

44、o cracking or crazing aVisual examination requirement: there shall be no voids, holes, wrinkles, streaks, cracking, blistering or peeling of the coating, nor discoloration of the copper conductors. Table 3 Test specimen C Procedure (Subclause of IEC 61086-2) Stage Test property (Subclause of IEC 610

45、86-2) Number of samples (identification) Requirement Cleaning (3.1.2) Extract conductivity or Ionic content (3.1.2) All 50 S m 1 or 1,55 g cm 2NaCl a 5 Coating (3.1) After coating, before exposure Visual examination (7.1) 5 (1-5) See b Mould growth (7.7) After exposure Visual examination (7.1) 5 (1-

46、5) Not greater than level 1 aMuch of the commercially available equipment is calibrated in units of micrograms per square inch. In this case, 1,5 g cm 2is equivalent to 10 g in 2 . bVisual examination requirement: There shall be no voids, holes, wrinkles, streaks, cracking, blistering or peeling of

47、the coating, nor discoloration of the copper conductors. Page8 EN6108631:2004160-68-31 EI:C0024 19 Table 4 Test specimen D Procedure (Subclause of IEC 61086-2) Stage Test property (Subclause of IEC 61086-2) Number of samples (identification) Requirement Cleaning (3.1.2) Extract conductivity or ionic

48、 content (3.1.2) All 50 S m 1 or 1,55 g cm 2NaCl a 5 Coating (3.1) After coating, before exposure Visual examination (7.1) 5 (1-5) Seeb Flammability (7.6) Flammability (7.6) 5 (1-5) Burning time not greater than 10 s and self extinguishing in 4 s aMuch of the commercially available equipment is calibrated in units of micrograms per square inch. In this case, 1,5 g cm 2is equivalent to 10 g in 2 . bVisual examination requirement: there shall be no voids, holes, wrinkles, streaks, cracking, blistering or peeli