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1、BRITISH STANDARD AEROSPACE SERIES BS EN 2330:1993 Textile glass fibre preimpregnates Test method for the determination of the content of volatile matter The European Standard EN 2330:1993 has the status of a British Standard UDC 677.521.074.077.62:620.1:543.713:629.7 Licensed Copy: sheffieldun sheff
2、ieldun, na, Fri Nov 03 01:16:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 2330:1993 This British Standard, having been prepared under the direction of the Aerospace Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 15 May 1993 BSI 11
3、-1999 The following BSI references relate to the work on this standard: Committee reference ACE/64 Draft for comment 91/78897 DC ISBN 0 580 22144 X Cooperating organizations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the n
4、ational standards organizations of the following countries: AustriaOesterreichisches Normungsinstitut BelgiumInstitut belge de normalisation DenmarkDansk Standardiseringsraad FinlandSuomen Standardisoimisliito, r.y. FranceAssociation franaise de normalisation GermanyDeutsches Institut fr Normung e.V
5、. GreeceHellenic Organization for Standardization IcelandTechnological Institute of Iceland IrelandNational Standards Authority of Ireland ItalyEnte Nazionale Italiano di Unificazione LuxembourgInspection du Travail et des Mines NetherlandsNederlands Normalisatie-instituut NorwayNorges Standardiseri
6、ngsforbund PortugalInstituto Portugus da Qualidade SpainAsociacin Espaola de Normalizacin y Certificacin SwedenStandardiseringskommissionen i Sverige SwitzerlandAssociation suisse de normalisation United KingdomBritish Standards Institution Amendments issued since publication Amd. No.DateComments Li
7、censed Copy: sheffieldun sheffieldun, na, Fri Nov 03 01:16:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 2330:1993 BSI 11-1999i Contents Page Cooperating organizationsInside front cover National forewordii Foreword2 Text of EN 23303 National annex NA (informative) Committees responsibleInside
8、back cover Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 01:16:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 2330:1993 ii BSI 11-1999 National foreword This British Standard has been prepared under the direction of the Aerospace Standards Policy Committee and is the English language v
9、ersion of EN 2330:1993 Aerospace series Textile glass fibre preimpregnates Test method for the determination of the content of volatile matter published by the European Committee for Standardization (CEN). EN 2330 was produced as a result of international discussion in which the United Kingdom took
10、an active part. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This doc
11、ument comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 6, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside fron
12、t cover. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 01:16:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2330 March 1993 UDC 677.521.074.077.62:620.1:543.713:629.7 Descriptors: Aircraft industry, glass-cloth, plastics, preimpregnated pr
13、oducts, tests, determination, volatile matter English version Aerospace series Textile glass fibre preimpregnates Test method for the determination of the content of volatile matter Srie arospatiale Primprgns de fibres de verre textile Mthode dessai pour la dtermination de la teneur en matires volat
14、iles Luft- und Raumfahrt Glasfilament- Prepreg Prfmethode zur Bestimmung des Anteils an flchtigen Bestandteilen This European Standard was approved by CEN on 1993-03-01. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
15、Standard 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 Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, Fre
16、nch, 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 Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland,
17、France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussel
18、s 1993 Copyright reserved to CEN members Ref. No. EN 2330:1993 E Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 01:16:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 2330:1993 BSI 11-1999 2 Foreword This European Standard has been prepared by the European Association of Aerospace Manufactur
19、ers (AECMA). After inquiries and votes carried out in accordance with the rules of this Association, this Standard has successively received the approval of the National Associations and the Official Services of the member countries of AECMA, prior to its presentation to CEN. This European Standard
20、shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 1993, and conflicting national standards shall be withdrawn at the latest by September 1993. According to the CEN/CENELEC Internal Regulations, the following cou
21、ntries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Contents Page Foreword2 1Scope3 2Normative references3 3Definitions3 4
22、Principle3 5Apparatus3 6Atmosphere for conditioning and testing3 7Sampling and specimens4 8Procedure4 9Calculation and expression of results4 10Test report4 Figure 1 Example of positioning of specimens on woven textile glass fibre fabric sample across the width5 Figure 2 Example of positioning of sp
23、ecimens on woven textile glass fibre fabric sample along an axis inclined at an angle ! as close as possible to the weft direction5 Figure 3 Example of positioning of specimens on textile glass fibre unidirectional sheet or tape sample6 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 01:16:20
24、 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 2330:1993 BSI 11-19993 1 Scope 1.1 This standard specifies a method for determining the percentage of volatile matter in a textile glass fibre preimpregnate, for aerospace use. 1.2 This standard does not give any directives necessary to meet the health
25、and safety requirements. It is the responsibility of the user of this standard to adopt appropriate health and safety precautions. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the
26、 appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the
27、publication referred to applies. EN 2743, Aerospace series Reinforced plastics Standard procedures for conditioning prior to testing1). 3 Definitions A textile glass fibre preimpregnate with a thermosetting or thermoplastic resin is a material in the form of a synthetic resin impregnated textile gla
28、ss fibre unidirectional sheet, tape or woven fabric and used for the manufacture of moulded components. 4 Principle Determination of the loss in mass due to exposure of a specimen at an elevated temperature for a specified time. This loss is expressed as a percentage with respect to the initial mass
29、. 5 Apparatus 5.1 Balance with an accuracy of 0,1 mg 5.2 Template of standard specimen 5.3 Ancillary items such as sharp knife and tweezers 5.4 Tray of suitable material, e.g. metal or ceramic, if necessary to prevent the loss of any resin that may drip from the specimen while it is being heated 5.5
30、 Oven capable of maintaining the agreed temperature with an accuracy of 5 C and provided with a fan for circulating the air 5.6 Desiccator, containing a suitable drying agent (for example, silica gel, calcium chloride, phosphorus pentoxide) 6 Atmosphere for conditioning and testing 6.1 Conditioning
31、6.1.1 Conditioning of material stored at ambient temperature For material stored at ambient temperature, the amount of material required for testing shall be sampled and conditioned in the test atmosphere (see 6.2.1) for a minimum of 2 h, unless otherwise specified. 6.1.2 Conditioning of material st
32、ored below ambient temperature For material stored at temperatures lower than ambient temperature, the material, suitably packed in an airtight and solvent resistant bag to prevent moisture pick-up, shall be allowed to reach ambient temperature over a period of time according to the mass of the pack
33、age. This time shall not be less than 8 h and the actual time shall be recorded in the report. When the material has reached ambient temperature, the amount required for testing shall be sampled and conditioned in the test atmosphere (see 6.2.1), for a minimum of 2 h, unless otherwise specified. 6.2
34、 Testing 6.2.1 Atmosphere for testing The tests shall be carried out at temperature and relative humidity conditions in accordance with EN 2743B. 6.2.2 Time interval between conditioning and testing Unless otherwise specified, the test shall be carried out within 6 h, after conditioning, the specime
35、n being kept in the test atmosphere until the test is carried out. 1) Published as AECMA pre-standard at the date of publication of this standard Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 01:16:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 2330:1993 4 BSI 11-1999 7 Sampling and speci
36、mens 7.1 Specimen The specimen has a square shape. The dimension of the sides shall be (100 1) mm. Other dimensions of the specimen may be used, subject to agreement between the purchaser and supplier, but shall have a surface area of 100 cm2 with a tolerance of 2 %. 7.2 Number and distribution of s
37、pecimens At least three specimens shall be used. These shall be evenly distributed and cut from the sample diagonally across the width or length, as shown in Figure 1 and Figure 2 for woven fabrics and in Figure 3 for unidirectional sheet or tape. 8 Procedure Cut the specimens from a representative
38、sample of the material under test, using the appropriate template. Remove the separating film(s) and weigh each specimen to the nearest mg (m1), if necessary with a tray previously weighed to constant mass to the nearest mg (m3). Transfer the specimens (with tray, if used) to an oven maintained at t
39、he specified temperature (see note). Take care that the specimens are well ventilated by the hot air in the oven. After the agreed time (see note), remove the specimens (and tray, if used) from the oven, cool down to ambient temperature in a desiccator and weigh to the nearest mg (m2). NOTEOven temp
40、erature and time are those specified in the relevant material standard. 9 Calculation and expression of results The percentage of volatile matter in each specimen is calculated from the formula: or: where: Calculate the arithmetic mean of the values obtained for V. 10 Test report The test report sha
41、ll include the following information: 10.1 Reference to the type of preimpregnate, with complete description, including prepreg batch number 10.2 Reference to this standard 10.3 Description of the sampling method 10.4 Number of specimens used, if different from this standard 10.5 Dimensions of speci
42、mens, if different from this standard 10.6 Atmosphere used for conditioning and testing and actual time used for conditioning 10.7 Temperature and time used in the oven 10.8 Individual values 10.9 Arithmetic mean value of the content of volatile matter, expressed as a percentage of the original mass
43、 10.10 Observations on any circumstances liable to have influenced the results V: the content of volatile matter expressed as a percentage of the original mass, m1: the initial mass of the specimen (and tray, if used), in g, m2: the mass of the specimen (and tray, if used) after heating, in g, m3: t
44、he mass of the tray (if used), in g. V m1m2() m1 -100 without tray= V m1m2() m1m3() -100 with tray= Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 01:16:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 2330:1993 BSI 11-19995 Figure 1 Example of positioning of specimens on woven textile glass
45、 fibre fabric sample across the width Figure 2 Example of positioning of specimens on woven textile glass fibre fabric sample along on axis inclined at an angle ! as close as possible to the weft direction Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 01:16:20 GMT+00:00 2006, Uncontrolled C
46、opy, (c) BSI EN 2330:1993 6 BSI 11-1999 Figure 3 Example of positioning of specimens on textile glass fibre unidirectional sheet or tape sample Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 01:16:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 2330:1993 BSI 11-1999 National annex NA (in
47、formative) Committees responsible The United Kingdom participation in the preparation of this European Standard was entrusted by the Aerospace Standards Policy Committee (ACE/-) to Technical Committee ACE/64, upon which the following bodies were represented: British Plastics Federation Ministry of D
48、efence Society of British Aerospace Companies Limited Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 01:16:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 2330:1993 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible
49、 for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards 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 if anyone finding an inaccuracy or am
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