1、BS EN 3909:2016Aerospace series Test fluidsand test methods for electricaland optical components andsub-assembliesBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN 3909:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 390
2、9:2016. It supersedes BS EN 3909:2007 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee ACE/6, Aerospace avionic electrical and fibre optic technology.A list of organizations represented on this committee can be obtained on request to its secretary.This
3、publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 90777 7 ICS 49.060 Compliance with a British Standard cannot confer immu
4、nity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 3909:2016EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 3909 May 20
5、16 ICS 49.060 Supersedes EN 3909:2007English Version Aerospace series - Test fluids and test methods for electrical and optical components and sub-assemblies Srie arospatiale - Fluides dessais et mthodes dessai pour composants et sous-ensembles lectriques et optiques Luft- und Raumfahrt - Prfflssigk
6、eiten und Prfverfahren fr elektrische und optische Bauelemente und Untergruppen This European Standard was approved by CEN on 27 September 2015. 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
7、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 (English, French, German). A
8、 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, Bulgaria, Croatia, Cypr
9、us, 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, Turkey and United Kin
10、gdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 3909:2
11、016 EBS EN 3909:2016EN 3909:2016 (E) 2 Contents Page European Foreword 3 1 Scope 4 2 Normative references 4 3 Test fluids . 5 4 Test samples . 5 5 Test procedures . 5 6 Test temperatures 5 7 Health and safety . 6 8 Information to be supplied in the product standard . 6 9 List of test fluids . 6 10 G
12、eneral guidance . 9 BS EN 3909:2016EN 3909:2016 (E) 3 European Foreword This document (EN 3909:2016) 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, t
13、his 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 Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at th
14、e latest by November 2016, and conflicting national standards shall be withdrawn at the latest by November 2016. 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
15、or all such patent rights. This document supersedes EN 3909:2007. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Es
16、tonia, 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, Turkey and the United Kingdom. BS EN 3909:2016EN 390
17、9:2016 (E) 4 1 Scope This standard specifies the list of test fluids to be used to demonstrate that components and sub-assemblies will not be adversely affected by contamination by fluids types that they may typically be exposed to. The fluids listed are representative of those commonly used and enc
18、ountered in airborne and ground operations, and align with the requirements of fluids susceptibility of ISO 7137. This shall not be considered an exhaustive list and additional test fluids may be instructed in the product standard, against which compliance needs to be demonstrated. This standard, wh
19、en used in conjunction with the test requirements defined in Clause 6 or the product standard shall be considered the starting point to test a component to determine its minimum performance capability when exposed to the fluids listed. Test results obtained from a number of sources over a considerab
20、le period of time have shown that, in many cases, widely varying results can be obtained when using fluids that are used in service. The practice of specifying fluids based on performance criteria rather than their constituents can mean variations in test results between batches of the fluid obtaine
21、d from different manufacturers, or even from the same manufacturer. For this reason the EN 3909 Standard recommends the use of “standard test fluids“ which are specified by their constituents and contain the chemicals that may be found in commonly used fluids. Where equipment may be exposed to fluid
22、 types that are not covered by Table 1 or where specific test fluids are considered to be necessary, the product standard shall identify the particular fluid required. If a manufacturer chooses to include additional test fluids (e.g. to satisfy a customer requirement), they do so at their own risk.
23、2 Normative references The following documents, in whole or in part, 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 amend
24、ments) applies. EN 2349-405, Aerospace series Requirements and test procedures for relays and contactors Part 405: Fluid resistance EN 2591-315, Aerospace series Elements of electrical and optical connection Test methods Part 315: Fluid resistance EN 3475-411, Aerospace series Cables, electrical, ai
25、rcraft use Test methods Part 411: Resistance to fluids EN 3745-411, Aerospace series Fibres and cables, optical, aircraft use Test methods Part 411: Resistance to fluids EN 3841-405, Aerospace series Circuit breakers Test methods Part 405: Fluid resistance EN 4057-303, Aerospace series Cable ties fo
26、r harnesses Test methods Part 303: Resistance to fluids ISO 1817, Rubber, vulcanized or thermoplastic Determination of the effect of liquids ISO 7137, Aircraft Environmental conditions and test procedures for airborne equipment ISO 11075, Aircraft De-icing/anti-icing fluids ISO type I ISO 11078, Air
27、craft De-icing/anti-icing fluids ISO types II, III and IV MIL-PRF-87937, Cleaning Compound, Aerospace Equipment1)AMS 1428G, Fluid, Aircraft Deicing/Anti-Icing, Non-Newtonian, (Pseudoplastic), SAE Types II, III, and IV2)AMS 1476B, Deodorant, Aircraft Toilet2)1)Published by: DoD National (US) Mil. Dep
28、artment of Defense (http:/www.defenselink.mil/). 2)Published by: SAE National (US) Society of Automotive Engineers (http:/www.sae.org/). BS EN 3909:2016EN 3909:2016 (E) 5 ASTM D740, Standard Specification for Methyl Ethyl Ketone2)3 Test fluids Unless specified in the relevant product standard, test
29、specification or test method, all test fluids listed in Table 1, of this standard, are mandatory. To ensure the optimum performance of all the test fluids, the shelf life and storage conditions must be maintained in accordance with the fluid manufacturers recommendations. 4 Test samples The test sam
30、ple shall be either, a component or an assembly, as specified in the test method and/or product standard. The size and/or physical arrangement of each test sample or test assembly shall enable complete sample immersion into the test fluid in accordance with the test procedure. 5 Test procedures Unle
31、ss otherwise stated in the product standard, the following component types shall be tested in accordance with either; EN 2349-405 for relays and contactors, EN 2591-315 for electrical connectors and accessories, EN 3475-411 for cables, EN 3745-411 for fibre optic components, EN 3841-405 for circuit
32、breakers or EN 4057-303 for cable ties, to confirm they are not susceptible to the fluids listed in Table 1. For any other types of components requiring testing using the fluids listed in Table 1, the appropriate test procedures shall be as defined in the relevant product standard. NOTE Unless other
33、wise specified in the product standard, the test specification shall control the complete test procedure including instructions such as cleaning the test samples and the choice of cleaning fluids (this should not result in further contamination). 6 Test temperatures Test temperatures and flash point
34、 temperatures are as detailed in Table 1. The test temperatures comprise a soak temperature in the test fluid; a conditioning period and a heat soak stage in air. The samples shall be inspected at ambient after the 3 stage cycle(s) as required by the product standard or technical specification. The
35、test temperatures listed in Table 1 comprise the recommended immersion fluid temperature followed by the recommended oven circulated air temperature. E.G. A sample to be tested in test fluid Gasoline to ISO 1817 Liquid B (test fluid ref 1a), shall be immersed for 15 min to 20 min at 40 C in the gaso
36、line and removed. Stored for 7 h to 7,5 h at 23 C. Placed in the oven for 16 h to 16,5 h at the relevant third phase temperature (refer to the product standard technical specification or test specification for the oven temperature). BS EN 3909:2016EN 3909:2016 (E) 6 7 Health and safety It is the res
37、ponsibility of the user to ensure all local and industrial health and safety requirements are followed during and after the test program. i.e. storage, use and disposal of test fluids. The relevant Material Safety Data Sheet shall be consulted to establish safe handling of each fluid listed and test
38、ed. If there is any doubt the fluid supplier/manufacturer shall be consulted. If the test temperature results in the fluid becoming a gas, the test authority shall determine the applicability of the test and the test facility shall ensure all health and safety measures are adhered to. 8 Information
39、to be supplied in the product standard The following information shall be supplied in the product standard: 1 Test procedures/method(s) to be used; 2 The quantity and sizes (including styles, etc.) of test samples; 3 Any departures from the test fluids and/or test protocol listed in this standard an
40、d the test procedure; 4 The test sample configuration (if not described by the relevant test procedure); 5 The pass/fail criteria for the characteristics under assessment. Table 1 makes reference to a test fluid number. This reference may appear in the relevant test instruction as a numeric or a num
41、eric and alpha. The new test reference numbers have been adopted to allow the selection of new fluids in accordance with changing environmental and business needs. The old test fluid references shall not be used for test fluid call-up in new specifications. It is recommended that, wherever practical
42、 the test fluid shall be referred to by its full name or specification. 9 List of test fluids For test fluids refer Table 1. The relevant Material Safety Data Sheet (and the fluid supplier/manufacturer if necessary) shall be consulted to establish the characteristics and any special handling require
43、ments associated with each fluid listed and tested. This includes establishing if a fluid is conductive or not. The fluid manufacturer shall be consulted if there are any doubts about a fluid or its characteristics. BS EN 3909:2016EN 3909:2016 (E) 7 Table 1 List of test fluids Test fluid No. Fluid f
44、amily Type Test fluid to be used (Consider Note 1) Fluid in service (for reference) Test temperature 2 C Flash point C New Old 1a 1 Fuels Gasoline Toluene 30 % Isooctane 70 % v/v ISO 1817 Liquid B AVGAS-100LL NATO-F-18 40 4 1b 2 (Hydro Carbon) Kerosene ISO 1817 Liquid F AVTUR/FSI NATO-F-34 (JP-8) 70
45、 40 AVTUR NATO-F-35 AVTAG/FSII NATO-F-40 (JP-4) AVCAT/FSII NATO-F-44 (JP5) 1c n/a Biofuel As specified in the product standard. As specified in the product standard. See Note 2. See Note 3. 2a 3 Hydraulic Fluids Phosphate based ISO 1817 Liquid 103 Synthetic Fluid H580 Skydrol 500B4 Skydrol 5 70 160
46、2b 4 Silicone Based NATO-S-1714 NATO-S-1714, ZX-42 80 140 2c 5 Mineral Based NATO-H-520 OM-18 NATO-H-515, OM-15 NATO-H-520 80 80 3a 6 Oils Mineral Based NATOO-1176, OMD-90 125 200 3b 7 NATO-O-142 NATO-O-142, OM-12 70 120 3c 8 Synthetic Oil Diester ISO 1817 Liquid 101 NATO-O-147, OX-14 150 260 NATO-O
47、-149, OX-38 See Note 2. See Note 3. 3d 9 Synthetic Oil NATO-O-160, OX-26 NATO-O-156, OX-27 See Note 2. See Note 3. Polyol ester NATO-O-148, OX-9 See Note 2. See Note 3. NATO-O-160, OX-26 See Note 2. See Note 3. 4a 10 Cleaning Fluids Solvent Isopropanol. See Note 4 NATO-S-737, AL-11 50 12 4b n/a See
48、Note 1. Ethanol. See Note 4. NATO-S-738 See Note 2. See Note 3. BS EN 3909:2016EN 3909:2016 (E) 8 Test fluid No. Fluid family Type Test fluid to be used (Consider Note 1) Fluid in service (for reference) Test temperature 2 C Flash point C New Old 4c 11 Propanol 25 % + White spirit 75 % v/v NATO-S-75
49、2 + NATO-S-753 25 See Note 3. 4d 12 Solvent Methylethylketone ASTM-D740 Methylethylketone ASTM-D740 25 4 4e 13 Detergent MIL-PRF-87937 Type IV 25 See Note 3. 4f 16 Sullage AMS 1476B 5 % solution AMS 1476B See Note 2. See Note 3. 5a 14 De-icing Runway De-icers. 50 % Inhibited Potassium Acetate in Water 25 See Note 3. 5b 15 Aircraft De-icers. On Ground Ethylene Glycol 80 % + Water 20 % v/v AMS 1428. See Note 4. NATO-S-742 25 200 5c n/a Mono-propylene Glycol.
