BS-ISO-22314-2006.pdf
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1、BRITISH STANDARD BS ISO 22314:2006 Plastics Glass-fibre-reinforced products Determination of fibre length ICS 83.120 ? Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 08:16:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 22314:2006 This British Standard was published under the authority
2、of the Standards Policy and Strategy Committee on 31 May 2006 BSI 2006 ISBN 0 580 48390 8 National foreword This British Standard reproduces verbatim ISO 22314:2006 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee PRI/42, Fib
3、re reinforced thermosetting plastics and prepregs, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be
4、 found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are
5、responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and k
6、eep UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to iv, pages 1 to 4, an inside back cover and a back cover. The BSI copyright
7、notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 08:16:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Reference number ISO 22314:2006(E) INTERNATIONAL STANDAR
8、D ISO 22314 First edition 2006-05-01 Plastics Glass-fibre-reinforced products Determination of fibre length BS ISO 22314:2006 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 08:16:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 08:16:04
9、GMT+00:00 2006, Uncontrolled Copy, (c) BSI iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each me
10、mber body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International E
11、lectrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards ad
12、opted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of pa
13、tent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 22314 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 13, Composites and reinforcement fibres. BS ISO 22314:2006 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 08:16:04
14、GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv Introduction There is global interest in the determination of the length of glass fibres in all types of composite, to predict their characteristics (essentially mechanical ones). For these determinations, three steps are necessary: separation of the fib
15、res from the composite; dispersion of the fibres to obtain individual fibres; measurement of their length. After considering all the existing methods for separating the fibres from the resin, it was decided to develop the proposed method only for short glass fibres from thermoplastic resins, extract
16、ed by calcination. The principles of the method are probably suitable for other composites, but it would need more development to obtain a method suitable for other conditions (thermoset resins, long fibres in thermoplastic or thermoset resins, carbon fibres). BS ISO 22314:2006 Licensed Copy: sheffi
17、eldun sheffieldun, na, Mon Nov 27 08:16:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 1 Plastics Glass-fibre-reinforced products Determination of fibre length 1 Scope This International Standard specifies a method of determining the length of the fibres present in a fibre- reinforced product. The me
18、thod is applicable to moulding materials and to moulded parts. The test conditions specified limit the application of this method to thermoplastics reinforced with short glass fibres (less than 1 mm long), i.e. fibres whose length is less than or equal to 7,5 mm prior to incorporation in the mouldin
19、g material and moulding. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. I
20、SO 472, Plastics Vocabulary ISO 1172, Textile-glass-reinforced plastics Prepregs, moulding compounds and laminates Determination of the textile-glass and mineral-filler content Calcination methods 3 Terms and definitions For the purpose of this document, the terms and definitions given in ISO 472 ap
21、ply. 4 Principle The fibres are separated from the reinforced polymer and their length measured from a magnified image on a screen. 5 Apparatus 5.1 Muffle furnace, capable of maintaining a temperature of 625 C 25 C. 5.2 Crystallizing dish, diameter 80 mm to 110 mm. 5.3 Ultrasonic device. NOTE A basi
22、c ultrasonic device, like those used in laboratories for cleaning purposes, has been found suitable. 5.4 Microscope or stereoscope (with fixed or variable magnification factors), equipped with a video camera, giving at least 50 magnification. 5.5 Image acquisition device, that enables the image to b
23、e displayed on a TV monitor. BS ISO 22314:2006 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 08:16:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2 5.6 Reference micrometer, to calibrate the images at the selected magnification. 5.7 Data-processing equipment, with suitable image analysis sof
24、tware. 5.8 Drying oven, capable of maintaining a temperature of 130 C 5 C. 5.9 Laboratory and observation accessories (crucibles, evaporation dishes, spatulas, glass microscope slides). 6 Procedure 6.1 Preparation of the test specimen From the sample to be examined, take the quantity of material nec
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