1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationAerospace series Paints and varnishes Chromate free non corrosion inhibiting two components cold curingprimer for military applicationBS EN 4687:2012National forewordThis British
2、 Standard is the UK implementation of EN 4687:2012.The UK participation in its preparation was entrusted by Technical CommitteeACE/65, Non-metallic materials for aerospace purposes, to Panel ACE/65/-/3,Paints, Surface Finish and Protective Treatments for Aerospace Purposes.A list of organizations re
3、presented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application. The British Standards Institution 2013Published by BSI Standards Limited 2013ISBN 978 0 58
4、0 76849 1ICS 49.040Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the StandardsPolicy and Strategy Committee on 31 January 2013.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS
5、 EN 4687:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4687 March 2012 ICS 49.040 English Version Aerospace series - Paints and varnishes - Chromate free non corrosion inhibiting two components cold curing primer for military application Srie arospatiale - Peinture et vernis - Peinture pr
6、imaire sans chromate non anticorrosive deux composants polymrisant temprature ambiante pour applications militaires Luft- und Raumfahrt - Beschichtungsstoffe - Zweikomponenten Grundbeschichtung, chromatfrei, nicht korrosionshemmend, raumtemperaturhrtend, fr militrische Anwendung This European Standa
7、rd was approved by CEN on 21 January 2012. 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 bibliographical references concerning s
8、uch 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 (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its o
9、wn 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, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Ita
10、ly, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 1
11、7, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4687:2012: EBS EN 4687:2012EN 4687:2012 (E) 2 Contents Page Foreword 3 Introduction .4 1 Scope 5 2 Normative references 5 3 Terms and definitions .7 4 Surface
12、pretreatments .7 5 Classification 7 6 Batch release and qualification testing .8 7 Requirements for fibre reinforced composites . 18 8 Designation . 18 BS EN 4687:2012EN 4687:2012 (E) 3 Foreword This document (EN 4687:2012) has been prepared by the Aerospace and Defence Industries Association of Eur
13、ope - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. This European Sta
14、ndard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 2012, and conflicting national standards shall be withdrawn at the latest by September 2012. Attention is drawn to the possibility that some of the element
15、s 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. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this Europ
16、ean Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turke
17、y and the United Kingdom. BS EN 4687:2012EN 4687:2012 (E) 4 Introduction The requirements concerning fibre reinforced composite substrates are established in Clause 7. BS EN 4687:2012EN 4687:2012 (E) 5 1 Scope This European Standard defines the requirements for a two components, chromate and lead fr
18、ee epoxy, non corrosion inhibiting primer. The coating should be suitable for use on fibre reinforced composite materials, titanium and corrosion resistant steels and other suitably prepared corrosion resistant substrates. 2 Normative references The following documents, in whole or in part, are norm
19、atively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2101, Aerospace series Chromic acid anodizing of aluminium
20、 and wrought aluminium alloys EN 2334, Aerospace series Chromic-sulphuric acid pickle of aluminium and aluminium alloys EN 2437, Aerospace series Chromate conversion coatings (yellow) for aluminium and aluminium alloys EN 3837, Aerospace series Paints and varnishes Nature and method for surface prep
21、aration of test pieces in aluminium alloys 1)EN 3840, Aerospace series Paints and varnishes Technical specification EN 3847, Aerospace series Paints and varnishes Determination of sedimentation rating 1)EN 4160, Aerospace series Non-metallic materials Paints and varnishes Test methods Determination
22、of the effect of thermal exposure 1)EN 4688, Aerospace series Paints and varnishes Corrosion inhibiting two components cold curing primer for military application EN 4689, Aerospace series Paints and varnishes Two components cold curing polyurethane finish High flexibility and chemical agent resista
23、nce for military application EN ISO 1513, Paints and varnishes Examination and preparation of test samples EN ISO 1518, Paints and varnishes Determination of scratch resistance EN ISO 1519, Paints and varnishes Bend test (cylindrical mandrel) EN ISO 1520, Paints and varnishes Cupping test EN ISO 152
24、4, Paints, varnishes and printing inks Determination of fineness of grind EN ISO 2409, Paints and varnishes Cross-cut test 1) Published as ASD-STAN Prestandard at the date of publication of this standard (www.asd-stan.org). BS EN 4687:2012EN 4687:2012 (E) 6 EN ISO 2431, Paints and varnishes Determin
25、ation of flow time by use of flow cups EN ISO 2811-1, Paints and varnishes Determination of density Part 1: Pyknometer method EN ISO 2811-2, Paints and varnishes Determination of density Part 2: Immersed body (plummet) method EN ISO 2811-3, Paints and varnishes Determination of density Part 3: Oscil
26、lation method EN ISO 2811-4, Paints and varnishes Determination of density Part 4: Pressure cup method EN ISO 2812-1, Paints and varnishes Determination of resistance to liquids Part 1: Immersion in liquids other than water EN ISO 2812-2, Paints and varnishes Determination of resistance to liquids P
27、art 2: Water immersion method EN ISO 2813, Paints and varnishes Determination of specular gloss of non-metallic paint films at 20, 60 and 85 EN ISO 3251, Paints, varnishes and plastics Determination of non-volatile-matter content EN ISO 3675, Crude petroleum and liquid petroleum products Laboratory
28、determination of density Hydrometer method EN ISO 3678, Paints and varnishes Print-free test EN ISO 3679, Determination of flash point Rapid equilibrium closed cup method EN ISO 3680, Determination of flash/no flash Rapid equilibrium closed cup method EN ISO 4628-2, Paints and varnishes Evaluation o
29、f degradation of coatings Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 2: Assessment of degree of blistering EN ISO 6270-1, Paints and varnishes Determination of resistance to humidity Part 1: Continuous condensation EN ISO 9117-1, Paints and va
30、rnishes Drying tests Part 1: Determination of through-dry state and through-dry time EN ISO 9117-3, Paints and varnishes Drying tests Part 3: Surface-drying test using ballotini EN ISO 9514, Paints and varnishes Determination of the pot life of multicomponent coating systems Preparation and conditio
31、ning of samples and guidelines for testing EN ISO 11890-1, Paints and varnishes Determination of volatile organic compound (VOC) content Part 1: Difference method EN ISO 11890-2, Paints and varnishes Determination of volatile organic compound (VOC) content Part 2: Gas-chromatographic method ISO 3270
32、, Paints and varnishes and their raw materials Temperatures and humidities for conditioning and testing ISO 7724-1, Paints and varnishes Colorimetry Part 1: Principles ISO 7724-2, Paints and varnishes Colorimetry Part 2: Colour measurement BS EN 4687:2012EN 4687:2012 (E) 7 ISO 7724-3, Paints and var
33、nishes Colorimetry Part 3: Calculation of colour differences MIL-PRF-5606H, Performance specification: Hydraulic fluid, petroleum base; aircraft, missile, and ordnance. (NATO H-515) 2)MIL-PRF-6081D, Performance specification: Lubricating oil, jet engine. (NATO O-133) 2)MIL-PRF-23699F, Performance sp
34、ecification: Lubricating oil, aircraft turbine engine, synthetic base, NATO code number O-156 2)MIL-DTL-83133G, Detail specification: Turbine fuel, aviation, kerosene type, JP-8 (NATO F-34), NATO F-35, and JP-8+100 (NATO F-37) 2)AMS 1526B, Cleaner for aircraft exterior surfaces water-miscible, press
35、ure- spraying type 3)AMS 1527B, Cleaner for aircraft exterior surfaces water-miscible, foam-on, pressure-spraying 3)AMS 1533A, Cleaner for exterior aircraft surfaces gel-type, solvent-base 3)DEF STAN 68-10, Corrosion Preventive, Water Displacing NATO Code: C-634 Joint Service Designation: PX-24 3 Te
36、rms and definitions For the purposes of this document, the terms and definitions given in EN 3840 apply. 4 Surface pretreatments In accordance with EN 3837, the surface pretreatments applicable to aluminium alloy test panels are the following: EN 3837 Procedure A : Sulfochromic pickling in accordanc
37、e with EN 2334; EN 3837 Procedure B : Chromic acid anodizing in accordance with EN 2101; EN 3837 Procedure C : Chromate conversion coating in accordance with EN 2437. 5 Classification The primer is classified according to the following types: TYPE I: Standard solvent content (VOC 680 g/l); TYPE II:
38、Low volatile organic content (VOC 420 g/l); TYPE III: Waterborne (VOC 350 g/l). 2) Published by: DoD National (US) MIL. Department of Defense http:/www.defenselink.mil/ 3) Published by: SAE National (US) Society of Automotive Engineers http:/www.sae.org/ BS EN 4687:2012EN 4687:2012 (E) 8 6 Batch rel
39、ease and qualification testing 6.1 General The general requirements for qualification and batch release testing shall be in accordance with (i.a.w.) EN 3840 and the applicable appendix for the specific material. 6.2 Qualification tests For product qualification, all tests defined in this standard, i
40、n the Tables 2 to 7, shall be performed. A minimum of three batches shall be tested for qualification purposes. 6.3 Batch acceptance testing The Manufacturer shall give evidence on the Test Report or the Certificate of Conformance that all the tests marked with the symbol *in this specification shal
41、l be performed for batch acceptance tests. 6.4 Compatibility of waterborne paints to solvent borne paints The waterborne primer type III shall be compatible to solvent borne primers type I and type II according to this standard and to type I and type II primers to EN 4688. All tests to demonstrate t
42、he compatibility are defined in Table 6 and shall be performed. 6.5 Purchaser batch release testing The purchaser may perform any of the test of this specification deemed necessary to ensure continuing uniform quality in material shipments. Table 1 General requirements Material description Chromate
43、free primer, for aerospace applications Formulation Base Activator Thinner if appropriate Preparation These components shall be mixed in simple whole number proportions, by volume or weight, in accordance with the manufacturerss instructions. Technical specification EN 3840 Marking See EN 3840. Stor
44、age stability See EN 3840. Application and use Dry film thickness of (25 5) m Drying conditions (23 2) C / (50 5) % RH for 7 (seven) days before testing, or after air drying for 4 (four) hours to 6 (six) hours before the application of the topcoat EN 4689. ISO 3270 for 7 (seven) days before applicat
45、ion of the topcoat EN 4689. Quality assurance See EN 3840. Designation Chromate free primer Packaging See EN 3840. Health and safety See EN 3840. BS EN 4687:2012EN 4687:2012 (E) 9 Table 2 Physical and chemical characteristics Delivery conditions Tests according to EN 3840 Test Test criteria Test req
46、uirements * Condition Test method EN ISO 1513 (as received in the original container) Requirement Shall be free from contaminants and show no skinning, gelling, hard settlement, or other defect. 1 * Non volatile matter Test method EN ISO 3251 Requirement % m/m Base Activator Thinner 2 % reference va
47、lue a b 2 % reference value a b 49 Volatile organic content (VOC) Test method EN ISO 11890-1 for Type I / Type II EN ISO 11890-2 for Type III Coating Base + Activator + Thinner Requirement g/l reference value a7 Flash point Test method EN ISO 3679 or EN ISO 3680 Requirement C Base Activator Thinner
48、reference value a reference value a reference value a8 * Flow time Test method EN ISO 2431 Coating Base + Activator + Thinner Requirement s 10 % reference value a b5 Sedimentation rating Test method EN 3847 (23 2) C / (50 5) % RH Coating Base + Activator + Thinner Requirement ml/4 h 30 3 * 4 * Densi
49、ty Test method EN ISO 2811-1 to EN ISO 2811-4 or EN ISO 3675 Test condition (23 2) C / (50 5) % RH Requirements g/cm3Base Activator Thinner a a a 10 Fineness of grind Test method EN ISO 1524 Requirement m Base Activator Thinner cc continued BS EN 4687:2012EN 4687:2012 (E) 10 Table 2 Physical and chemical characteristics Delivery conditions (continued) Tests acco
