1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 12971-2:1999 The Eu
2、ropean Standard EN 12971-2:1999 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 2: Test methods and general requirementsThis British Standard, having been pre
3、pared under the direction 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 32884 8 BS EN 12971-2:1999 Amendments issued since publication Amd. No. Date Comments National
4、 foreword This British Standard is the English language version of EN 12971-2:1999. 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; presen
5、t to the responsible European 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 re
6、quest to its secretary. Cross-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
7、 the BSI Standards Electronic 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.
8、Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 and 3 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 Nor
9、malisation 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 12971-2:1999 E EUROPEAN STANDARD EN 12971-2 NORME EUROPE ENNE EUROPA ISCHE
10、NORM May 1999 ICS 59.100.10 English version Reinforcements Specification for textile glass chopped strands Part 2: Test methods and general requirements Renforts Spe cification de fils de verre coupe s Partie 2: Me thodes dessais et exigences ge ne rales Versta rkungen Spezifikation fu r geschnitten
11、e Textilglasgarne Teil 2: Pru fverfahren und allgemeine Anforderungen This European Standard 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 stand
12、ard wihtout 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 version (English, French, German). A version in any other lan
13、guage 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, Czech Republic, Denmark, Finland, France, Germany, Greece,
14、 Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom .Page 2 EN 12971-2:1999 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
15、 Standard shall be given the status of a national standard, either by publication of an identical 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 natio
16、nal standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Th
17、is standard is one part of EN 12971 which is structured as follows: Textile glass Chopped strands 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 Norm
18、ative references 3 3 Definitions 3 4 List of properties 3 5 Sampling 3 6 General requirements 3 6.1 Appearance 3 6.2 Packaging 3 6.3 Labelling 3Page 3 EN 12971-2:1999 BSI 09-1999 Table 1 List of physical properties Properties Test method Remarks Combustible matter content ISO 1887 Moisture content E
19、N ISO 3344 Average fibre length No method Defined by manufacturer Filament diameter ISO 1888 For designation only Glass type No method For designation only Bulk density ISO/CD 15100 1 Scope 1.1 This part 2 of EN 12971 defines the test methods to be used to determine the designated and specified prop
20、erties given in part 1 and 3 respectively. 1.2 This part 2 of EN 12971 defines the general requirements applicable to the specification of all types of chopped strand falling within the scope of this specification as defined in part 1 of the standard. 2 Normative references This European Standard in
21、corporates 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 this E
22、uropean Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN ISO 1886, Reinforcement fibres Sampling plans applicable to received batches. (ISO 1886:1990) EN ISO 3344, Reinforcement products Determination
23、 of moisture content. (ISO 3344:1997) ISO 472, Plastics Vocabulary. ISO 1887, Textile glass Determination of combustible-matter content. ISO 1888, Textile glass Staple fibres or filaments Determination of average diameter. ISO/CD 15100, Reinforcement fibres Chopped strands Determination of bulk dens
24、ity. 3 Definitions For the purposes of this part 2 of EN 12971 the definitions given in ISO 472 apply with the following additions: 3.1 lot average an average property of a lot (in manufacture or delivered to the customer), when sampled in accordance with EN ISO 1886 3.2 bulk density the mass of a d
25、efined volume of chopped strands put into a container, without compression or the effects of settlement 3.3 moisture loss in storage for wet chopped strands, the difference between the original moisture content and that measured after a period in storage 4 List of properties The list of properties w
26、ith the applicable test method shall be considered as a guide for the selection of the properties and limits which shall be applicable to the technical specifications given in part 3 of this standard. 5 Sampling Sampling of textile glass chopped strands for the purpose of confirming conformance with
27、 the requirements of this specification shall be undertaken in accordance with EN ISO 1886. 6 General requirements 6.1 Appearance The textile glass chopped strands shall be substantially free from contamination (e.g. oil, metals, paper, etc.), and shall not contain unacceptable levels of agglomerate
28、d filament (fuzz ball). If required the purchase specification shall define acceptance levels. 6.2 Packaging The packaging shall protect the product during handling, storage and transportation and ensure that the material has a minimum shelf life of 12 months. For wet chopped strands, the packaging
29、shall include a moisture-proof package so as to keep control of moisture loss to ensure a minimum shelf life of 6 months. 6.3 Labelling Each package shall be clearly identified with: 6.3.1 Designation code. 6.3.2 Manufacturers production and traceability reference. 6.3.3 Weight of package (net). 6.3
30、.4 Any special handling/storage instructions.BS EN 12971-2:1999 BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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