1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 4595:2013Aerospace series Paints andvarnishes Two componentcold curing polyurethane finish Subsonic erosion resistanceBS EN 4595:2013 BRITISH STANDARDNational forewordThis
2、British Standard is the UK implementation of EN 4595:2013. The UK participation in its preparation was entrusted to TechnicalCommittee ACE/65, Non-metallic materials for aerospace purposes. A list of organizations represented on this committee can be obtained on request to its secretary.This publica
3、tion does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2013. Published by BSI Standards Limited 2013.ISBN 978 0 580 73665 0 ICS 49.040 Compliance with a British Standard cannot confer immunityf
4、rom legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2013.Amendments issued since publicationDate T e x t a f f e c t e dBS EN 4595:2013EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4595 January 2013 ICS 49.
5、040 English Version Aerospace series - Paints and varnishes - Two component cold curing polyurethane finish - Subsonic erosion resistance Srie arospatiale - Peintures et vernis - Deux composants durcissement froid, finition polyurthane - Rsistance lrosion subsonique Luft- und Raumfahrt - Beschichtun
6、gsstoffe - Zweikomponenten Polyurethan-Decklack, raumtemperaturhrtend - Unterschall-Erosionsbestndigkeit This European Standard was approved by CEN on 19 February 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European S
7、tandard 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 (Eng
8、lish, 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,
9、 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, Switzerlan
10、d, 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. N
11、o. EN 4595:2013: EBS EN 4595:2013EN 4595:2013 (E) 2 Contents Page Foreword . 3 Introduction 4 1 Scope 4 2 Normative references . 4 3 Terms and definitions 5 4 Classification 5 5 Batch release and qualification testing . 5 5.1 Batch release testing . 5 5.2 Qualification tests 5 6 Designation 9 BS EN
12、4595:2013EN 4595:2013 (E) 3 Foreword This document (EN 4595:2013) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the appro
13、val of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. 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 July 2013, and conflict
14、ing national standards shall be withdrawn at the latest by July 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. According to the
15、 CEN/CENELEC Internal Regulations, the national standards organisations 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, Hu
16、ngary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 4595:2013EN 4595:2013 (E) 4 Introduction This standard has been prepared in accordance with AECMA
17、 TR 7000-9. 1 Scope This European Standard specifies the requirements for a two component polyurethane, topcoat, with a medium degree of resistance to erosion by the effects of rain, available in a range of colours and levels of gloss, to be applied over a primer for aerospace applications on areas
18、where rain erosion at subsonic speeds may be a problem e.g. leading edges and air intakes. The properties specified in this standard are obtained on defined aluminium alloy test pieces prepared in accordance with EN 3837 Procedure A and EN 23270 and painted with primer to EN 2435. The ability of the
19、 material to be used for a specific application (e.g. alternative substrate, alternative primer, specific drying conditions etc.) shall be determined by supplementary tests to confirm that the requirements of this standard are met. 2 Normative references The following documents, in whole or in part,
20、 are normatively 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 2334, Aerospace series Chromic-sulphuric acid pic
21、kle of aluminium and aluminium alloys EN 2379, Aerospace series Fluids for assessment of non-metallic materials1)EN 2435 (all parts), Aerospace series Paints and varnishes Corrosion resistant chromated two component cold curing primer EN 3837, Aerospace series Paints and varnishes Nature and method
22、for surface preparation of test pieces in aluminium alloys1)EN 3840, Aerospace series Paints and varnishes Technical specification EN 23270, Paints and varnishes and their raw materials Temperatures and humidities for conditioning and testing (ISO 3270) EN ISO 1513, Paints and varnishes Examination
23、and preparation of test samples for testing (ISO 1513) EN ISO 2431, Paints and varnishes Determination of flow time by use of flow cups (ISO 2431) EN ISO 2811 (all parts), Paints and varnishes Determination of density EN ISO 2812-1, Paints and varnishes Determination of resistance to liquids Part 1:
24、 Immersion in liquids other than water (ISO 2812) 1) Published as AECMA Prestandard at the date of publication of this standard. BS EN 4595:2013EN 4595:2013 (E) 5 EN ISO 2813, Paints and varnishes Determination of specular gloss of non-metallic paint films at 20, 60 und 85(ISO 2813) EN ISO 2884-1, P
25、aints and varnishes - Determination of viscosity using rotary viscometers - Part 1: Cone-and-plate viscometer operated at a high rate of shear (ISO 2884-19) EN ISO 3251, Paints, varnishes and plastics Determination of non-volatile-matter content (ISO 3251) EN ISO 3675, Crude petroleum and liquid pet
26、roleum products Laboratory determination of density Hydrometer method (ISO 3675) EN ISO 3679, Determination of flash point Rapid equilibrium closed cup method (ISO 3679) EN ISO 3680, Determination of flash/no flash Rapid equilibrium closed cup method (ISO 3680) EN ISO 9117-1, Paints and varnishes Dr
27、ying tests Part 1: Determination of through-dry state and through-dry time (ISO 9117-1) EN ISO 9514, Paints and varnishes Determination of the pot life of multicomponent coating systems Preparation and conditioning of samples and guidelines for testing (ISO 9514) EN ISO 11890-1, Paints and varnishes
28、 Determination of volatile organic compound (VOC) content Part 1: Difference method (ISO 11890-1) ISO 37, Rubber, vulcanized or thermoplastic Determination of tensile stress-strain properties ISO 2781, Rubber, vulcanized or thermoplastics Determination of density ISO 7724 (all parts), Paints and var
29、nishes Colorimetry 3 Terms and definitions Not applicable 4 Classification Not applicable 5 Batch release and qualification testing 5.1 Batch release testing For batch acceptance the tests marked with an * shall be performed. 5.2 Qualification tests For product qualification, all tests mentioned in
30、this standard, in the tables 1 to 4, shall be performed. BS EN 4595:2013EN 4595:2013 (E) 6 Table 1 General requirements Characteristic number Characteristic Requirements 1.001 Material description Two component cold curing polyurethane coating with high resistance to erosion by rain 1.002 Formulatio
31、n Base a base containing an hydroxyl functional resin, solvents and pigments to give the required colour and gloss and other ingredients to give rain erosion resistance Activator a polyisocyanate activator solution Thinner if required 1.003 Preparation These components shall be mixed in simple whole
32、 number proportions, by volume or by weight, in accordance with the manufacturers instructions 1.004 Technical specification See EN 3840 1.007 Visual colour See EN 3840 1.008 Freedom from defects See EN ISO 1513 1.009 Application and use Dry film thickness of (250 50) m 1.010 Storage stability See E
33、N 3840 1.011 Shelf life See EN 3840 1.013 Drying conditions EN 23270 for 7 days before testing unless otherwise specified 1.093 Quality assurance See EN 3840 1.094 Designation Polyurethane Finish Rain Erosion Resistant Coating EN 4595 1.095 Packaging See EN 3840 1.096 Marking See EN 3840 1.097 Flash
34、 point EN 3840 Test 7 EN ISO 3679 or EN ISO 3680 base activator fthinner fC reference valuec reference valuec reference valuec1.098 Health and safety See EN 3840 1.999 Notes f Test only if component is present. c The reference value is that established during qualification. BS EN 4595:2013EN 4595:20
35、13 (E) 7 Table 2 Physical and chemical characteristics (1 of 2) Characteristic number Characteristic Requirements 2.008 Condition 1 EN ISO 1513 6 As received in original container * 7 Shall be free from extraneous matter and show no skinning, gelling, hard settlement or other defect which will preve
36、nt satisfactory application to produce a defect free film 2.009 Application properties and finish 1 None 3 EN 3837 A22024-T3 clad 4 EN 3837 Process A EN 2334 Pickle 5 EN 2435 primer + finish to this standard * 7 Liquid paint shall result in an opaque even finish, free from runs, sags, wrinkling, pin
37、holing or other defect 2.106 Reactivity Pot life EN 3840 1 Test 20 EN ISO 9514 followed by Test 8aEN ISO 2431 or Test 9aEN ISO 2884 6 base + activator + thinner * 7 s or Pa s 2 initial value after 30 min 2.107 Viscosity EN 3840 1 Test 8 EN ISO 2431aor Test 9 EN ISO 2884a6 base + activator + thinner
38、7 s or Pa s 10 %b, c2.104 Composition Non volatile matter EN 3840 1 Test 1 EN ISO 3251 7 base activator % 2b, c 2b, c2.104 Composition Volatile organic compound (VOC) content EN 3840 1 Test 49 EN ISO 11890-1 6 base + activator + thinner 7 g/l reference valueb, c2.301 Density EN 3840 1 Test 3 EN ISO
39、2811 6 base * 7 of ref. value 2b, c2.301 Density EN 3840 1 Test 4 EN ISO 3675 6 activator + thinner * 7 activator thinner of ref. value 2b, c 2b, cBS EN 4595:2013EN 4595:2013 (E) 8 Table 2 (2 of 2) Characteristic number Characteristic Requirements 2.106 Reactivity Through-dry time EN 3840 1 Test 23
40、EN ISO 9117 mass = 1 500 g 3 EN 3837 A22024-T3 clad 4 EN 3837 Process A EN 2334 Pickle 5 EN 2435 primer + finish to this standard 6 EN 23270 7 h 16 2.999 Notes a Test 8 shall be used for non-thixotropic paints and test 9 for thixotropic paints. b The deviation is that compared to the reference value
41、. c The reference value is that established during qualification. Table 3 Mechanical characteristics Characteristic number Characteristic Requirements 3.111 Optical properties colour EN 3840 1 Test 30 ISO 7724 3 EN 3837 A22024-T3 clad 4 EN 3837 Process A EN 2334 Pickle 5 EN 2435 primer + finish to t
42、his standard 6 EN 23270 * 7 E shall match the colour specified 3.111 Optical properties gloss 60 EN 3840 1 Test 27 EN ISO 2813 3 EN 3837 A22024-T3 clad 4 EN 3837 Process A EN 2334 Pickle 5 EN 2435 primer + finish to this standard 6 EN 23270 * 7 Gloss units shall match the gloss specified BS EN 4595:
43、2013EN 4595:2013 (E) 9 Table 4 Environmental characteristics Characteristic number Characteristic Requirements 4.306 Ultimate tensile elongation 1 ISO 37 3 PTFE sheet or similar material 4 Finish only applied 5 Free film of finish, allowed to condition for a further 8 h after removal from substrate
44、6 EN 23270 * 7 % 100 4.110 Density of dried film 1 ISO 2781 3 PTFE sheet or similar material 4 Finish only applied 5 Free film of finish, allowed to condition for a further 8 h after removal from substrate 6 EN 23270 * 7 g/ml 1,3 4.501 Resistance to fluids EN 3840 1 Test 35 EN ISO 2812-1 3 EN 3837 A
45、22024-T3 clad 4 EN 3837 Process A EN 2334 Pickle 5 EN 2435 primer + finish to this standard, panel cut to substrate with a knife immediately before testing 6 Tri-n-butyl phosphate for 100 h at 70 C * 7 No blistering, softening, lifting or other film defect 4.320 Rain erosion resistance 1 Whirling ar
46、m test riga3 EN 3837 A22024-T3 clad 4 EN 3837 Process A EN 2334 Pickle 5 EN 2435 primer + finish to this standard 6 EN 23270 * 7 50 g/m2erosion; no pitting of the film after 1 15 min runs 999 Notes a Velocity 223 m/s, artificial rain 25 mm/h, impact angle 90, drop diameter 2 mm. 6 Designation EXAMPL
47、E Description block POLYURETHANE FINISH RAIN EROSION RESISTANT COATING Identity block EN 4595 Number of this standard This page deliberately left blankThis page deliberately left blankBSI is the independent national body responsible for preparing British Standards and other standards-related publica
48、tions, information and services. It presents the UK view on standards in Europe and at the international level. BSI is incorporated by Royal Charter. British Standards and other standardisation products are published by BSI Standards Limited.British Standards Institution (BSI)raising standards world
49、wideBSI389 Chiswick High Road London W4 4AL UKTel +44 (0)20 8996 9001Fax +44 (0)20 8996 Standards and PASs are periodically updated by amendment or revision. Users of British Standards and PASs should make sure that they possess the latest amendments or editions.It is the constant aim of BSI to improve the quality of our products and services. We would be grateful
