1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 12971-1:1999 The Eu
2、ropean Standard EN 12971-1:1999 has the status of a British Standard ICS 59.100.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Reinforcements Specification for textile glass chopped strands Part 1: DesignationThis British Standard, having been prepared under the direction
3、of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 September 1999 BSI 09-1999 ISBN 0 580 32885 6 BS EN 12971-1:1999 Amendments issued since publication Amd. No. Date Comments National foreword This British Sta
4、ndard is the English language version of EN 12971-1:1999. The UK participation in its preparation was entrusted to Technical Committee PRI/42, Fibre reinforced thermosetting plastics and prepregs, which has the responsibility to: aid enquirers to understand the text; present to the responsible Europ
5、ean committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cr
6、oss-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electro
7、nic Catalogue. 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 docu
8、ment comprises a front cover, an inside front cover, the EN title page, pages 2 to 4, an inside back cover and a back cover. The BSI copyright notice displayed throughout this document indicates when the document was last issued.CEN European Committee for Standardization Comite Europe en de Normalis
9、ation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1999 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12971-1:1999 E EUROPEAN STANDARD EN 12971-1 NORME EUROPE ENNE EUROPA ISCHE NORM
10、May 1999 ICS 59.100.10 English version Reinforcements Specification for textile glass chopped strands Part 1: Designation Renforts Spe cification de fils de verre coupe s Partie 1: De signation Versta rkungen Spezifikation fu r geschnittene Textilglasgarne Teil 1: Bezeichnung This European Standard
11、was approved by CEN on 16 April 1999. 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 such n
12、ational standards may be obtained on application to the Central Secretariat 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 own language and
13、 notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerl
14、and and United Kingdom.Page 2 EN 12971-1:1999 BSI 09-1999 Foreword This European Standard has been prepared by Technical Committee CEN/TC 249, Plastics, the Secretariat of which is held by IBN. This European Standard shall be given the status of a national standard, either by publication of an ident
15、ical text or by endorsement, at the latest by November 1999, and conflicting national standards shall be withdrawn at the latest by November 1999. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European S
16、tandard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. This standard is one part of EN 12971 which is structured as follows: Textile glass Chopped str
17、ands Part 1: Designation; Textile glass Chopped strands Part 2: Test methods and general requirements; Textile glass Chopped strands Part 3: Technical specification. Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Definitions 3 4 Designation system 3 4.1 Data block 1 3 4.2 Data block 2
18、 3 4.3 Data block 3 3 5 Coding examples 4 Annex A (informative) Bibliography 4Page 3 EN 12971-1:1999 BSI 09-1999 Designation Identity block Individual item block Standard number block Data block 1 Data block 2 Data block 3 1 Scope 1.1 This part 1 of EN 12971 establishes a method of designation for c
19、hopped strands made from continuous filament textile glass strands, which may be used as the basis for specifications. 1.2 This designation system is for chopped strands used for the reinforcement of plastics and the manufacture of synthetic bonded non-woven materials. It does not apply to chopped s
20、trands made from staple fibres. 1.3 It is not intended to imply that chopped strands having the same designation give necessarily the same performance. Nor is the designation system intended to cover all the characteristics of chopped strands. This part 1 of EN 12971 does not give engineering data,
21、performance data or data which may be required to specify chopped strands for a particular application or method of processing. If such additional properties are required they should be determined in accordance with the test methods specified in EN 12971-2. 2 Normative references This European Stand
22、ard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the 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
23、this European only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN ISO 2078, Textile glass Yarns Designation. (ISO 2078:1993) ISO 472, Plastics Vocabulary. ISO 1888, Textile glass Staple fibres or filaments Determ
24、ination of average diameter 3 Definitions For the purposes of this part 1 of EN 12971 the definitions given in ISO 472 apply. Additional terms are defined in part 2 of this standard. 4 Designation system The designation system for textile glass chopped strands is based on the following standardized
25、pattern (see note). It consists of an identity block comprising the European Standard number and an individual item block. For unambiguous coding the individual item block is subdivided into data blocks comprising the following information: Data block 1 Identification of the glass type by its symbol
26、 according to EN ISO 2078; Data block 2 Designatory properties; Data block 3 Manufacturers code and/or size coating reference plus reference to whether the chopped strands are packed wet or dry. To ensure legibility: the description block is separated from the standard number by a comma; spaces are
27、inserted between blocks; the first character in the first individual item block is a dash; data blocks are separated from each other by a comma; a space is introduced between the positions in the blocks; if a data block is not used, this is indicated by two commas (,). NOTE This standardized pattern
28、 is a modification of the frame text given in ISO 1043-2, adapted to the designation of these reinforcement products. 4.1 Data block 1 In this data block the glass type identified by its symbol, according to EN ISO 2078 followed by a space and continuous fibre textile glass is identified by the lett
29、er C, in accordance with EN ISO 2078. 4.2 Data block 2 In this data block the designatory properties are defined as follows: position 1, the nominal fibre diameter, in accordance with ISO 1888; position 2, the nominal strand length, as defined by the manufacturer expressed at the nearest 0,5 mm. 4.3
30、 Data block 3 In this data block the manufacturers code and/or size coating reference is given. The reference is restricted to 5 digits, followed by a space and the letter D or W to designate wet or dry fibre.Page 4 EN 12971-1:1999 BSI 09-1999 5 Coding examples 5.1 An E glass, 10 micron fibre, 6 mm
31、chopped strand for thermoplastic injection moulding compound. EN 12971 -EC 10 6 1 234 D European Standard Data block 1 Glass type (E glass) Symbol for continuous textile glass Data block 2 Fibre diameter (10mm) Strand tex (not applicable) Strand length (6 mm) Data block 3 Manufacturers size code Str
32、and state (dry) Figure 1 Designation: EN 12971, -EC, 10 6, 1 234 D 5.2 An E glass, 13 micron fibre, 12 mm, chopped strand for thermoset compression moulding compound. EN 12971 -EC 13 12 5 678 D European Standard Data block 1 Glass type (E glass) Symbol for continuous textile glass Data block 2 Fibre
33、 diameter (13 mm) Strand length (12 mm) Data block 3 Manufacturers size code Strand state (dry) Figure 2 Designation: EN 12971, -EC, 13 12, 5 678 D Annex A (informative) Bibliography EN ISO 1886, Reinforcement fibres Sampling plans applicable to received batches. (ISO 1886:1990) EN ISO 3344, Reinfor
34、cement products Determination of moisture content. (ISO 3344:1997) ISO 1043-2, Plastics Symbols Part 2: Fillers and reinforcing materials. ISO 1887, Textile glass Determination of combustible-matter content ISO/CD 15100, Reinforcement fibres Chopped strands Determination of bulk density.blankBS EN 1
35、2971-1:1999 BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
36、 | | | BSI British Standards Institution BSI is the independent national body responsible 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 revis
37、ion. 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 ambiguity while using this British Standard would inform th
38、e Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: 020 8996 9000. Fax: 020 8996 7400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standard
39、s. Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services. Tel: 020 8996 9001. Fax: 020 8996 7001. In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been publ
40、ished as British Standards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service. Various BSI electronic information services are also available
41、which give details on all its products and services. Contact the Information Centre. Tel: 020 8996 7111. Fax: 020 8996 7048. Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards. For details of these and other
42、 benefits contact Membership Administration. Tel: 020 8996 7002. Fax: 020 8996 7001. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international standardization bodies. Except as permitted under the Copyright, Designs and Pa
43、tents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, recording or otherwise without prior written permission from BSI. This does not preclude the free use, in the course of implementing the standard, of necessa
44、ry details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel: 020 8996 7070.
