1、BRITISH STANDARDBS EN 2424:2008Aerospace series Marking of aerospace productsICS 49.035g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 2424:20
2、08This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2008 BSI 2008ISBN 978 0 580 60462 1National forewordThis British Standard is the UK implementation of EN 2424:2008. It supersedes BS EN 2424:1995 which is withdrawn. The UK participati
3、on in its preparation was entrusted to Technical Committee ACE/12, Aerospace fasteners and fastening systems.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. User
4、s are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issued since publicationDate CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 2424May 2008ICS 49.035 Supersedes EN 2424:1995 English VersionAe
5、rospace series - Marking of aerospace productsSrie arospatiale - Marquage des produits arospatiaux Luft und Raumfahrt - Kennzeichnung von Luft- undRaumfahrtteilenThis European Standard was approved by CEN on 7 March 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
6、 stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standa
7、rd exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standar
8、ds bodies of Austria, Belgium, Bulgaria, 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 and United Kingdom
9、.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 2424:2008: E2 Contents Pag
10、e Foreword3 1 Scope 4 2 Normative references 4 3 Aim 4 4 Marking practice 4 BS EN 2424:20083 Foreword This document (EN 2424:2008) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with th
11、e 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 Standard shall be given the status of a national standard, either by publication of an identical
12、 text or by endorsement, at the latest by November 2008, and conflicting national standards shall be withdrawn at the latest by November 2008. 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 re
13、sponsible for identifying any or all such patent rights. This document supersedes EN 2424:1995. 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, Cyprus, Czech
14、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 and the United Kingdom. BS EN 2424:20084 1 Scope This standard specifie
15、s the rules for the marking of aerospace products. It is applicable whenever referenced in the definition document of the product. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. F
16、or undated references, the latest edition of the referenced document (including any amendments) applies. TR 3198, Aerospace series Manufacturers identification monograms for EN aerospace products 1)3 Aim 3.1 General The marking allows the identification of the products and/or their manufacturer. 3.2
17、 Product identification All aerospace EN parts shall carry the EN part number if space is available; the EN part number shall take precedence over any manufacturers part number. The marking shall be as complete as possible. The marking styles shall be selected in accordance with the styles given in
18、4.2, based on the physical attributes of the component to be marked. Style A ensures a complete identification and is the preferred method for all parts. The other styles shall only be used when style A is not physically achievable or when specified in the product standard or definition document. Pa
19、rts marked in accordance with styles other than A will need a complementary check on parameters such as: form, dimensions, material, surface treatment, etc. to completely define the product. 3.3 Manufacturer identification It is carried out by means of their monogram or name, see Table 1. It is the
20、manufacturers responsibility to register their monograms with ASD-STAN, if they wish to manufacture EN parts which require marking in accordance with this standard. 4 Marking practice 4.1 Position It shall be arranged so as: not to be detrimental to the function of the product; 1) Published as ASD T
21、echnical Report at the date of publication of this standard. BS EN 2424:20085 to ensure, as far as possible, product identification in the assembled condition. It shall be stated in the definition document for the product. 4.2 Marking style See Table 1. The marking style will depend on the space ava
22、ilable and the style(s) chosen shall be quoted on the product definition. The styles below are given in order of preference of use (“A” being first), except when otherwise specified in the product standard or definition document. For products needing special identification that is not defined in Tab
23、le 1 (for instance: marking of the left-hand thread for threaded products), specific instructions shall be given in the definition document. Marking, additional to that defined in Table 1 on this specification, may be added at the manufacturers discretion, in order to prevent confusion with other st
24、andards systems (e.g. different raw materials). Table 1 Style Composition of marking Example Application A a) Identity block of the definition document of the product b) Manufacturers monogram a EN 2932-060030 EN 2997-RSO1814M7 This style is the preferred default marking method for all parts. B a) I
25、dentity block of the definition document of the product minus one or several codes b b) Manufacturers monogram a EN 2888-080 EN 3372-003 Products which cannot be marked according to style A. C a) Number of the definition document of the product b) Manufacturers monogram a EN 3377 EN 3360 Products wh
26、ich cannot be marked according to styles A or B. D a) Number of the EN product standard b) Manufacturers monogram a 2584 E a) Last digit of the number of the EN product standard b) Manufacturers monogram a 4 Does not apply to the definition documents published since March 1988. (continued) Table 1 (
27、concluded) Style Composition of marking Example Application F Manufacturers monogram a Products which cannot be marked according to styles A, B, C, N or P. G a) Identity block of the definition document of the product b) Manufacturers name or monogram a c) Batch number d) Quantity or mass EN 2139-14
28、016 Labels and/or packaging of products which cannot be marked. H a) One or several codes of the Identity 050 Does not apply to the definition BS EN 2424:20086 block of the definition document of the product b) Manufacturers name or monogram a documents published since March 1994. N a) Identificatio
29、n of thread system c b) Manufacturers monogram a Threaded products which cannot be marked according to styles A, B, C or P. P a) Manufacturers monogram a b) Manufacturers part number c) Additional marking (e.g. date of manufacture: year, week) d For specific products which cannot be marked according
30、 to styles A, B, C. aln accordance with TR 3198 for EN aerospace products. bFor bolts, the diameter code shall be mentioned in priority. cMJ or JM for metric J threads according to the manufacturers choice and UJ for UNJ threads in inches. dIf required by the definition document of the product. 4.3
31、Procedure All markings shall be permanent and shall not prejudice the requirements or performance of the product. Unless the marking method is stated in the definition document of the product: the choice of the procedure is left to the option of the manufacturer; the marking shall be indented or emb
32、ossed. The intrusion or protrusion of the characters shall be comprised between 0,05 mm to 0,25 mm and shall remain within the dimensional tolerance envelope. 4.4 Legibility The marking shall be legible without magnification after a possible surface treatment. The character size shall not be less th
33、an 0,8 mm. The preferred character size is 1,5 mm. Where space will not permit, character height may be smaller than 0,8 mm but greater than 0,3 mm legible with magnification 10. If this character height requirement cannot be respected, the marking shall be made according type G. BS EN 2424:2008blan
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