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1、BRITISH STANDARD BS EN ISO 10548:2003 Carbon fibre Determination of size content The European Standard EN ISO 10548:2003 has the status of a British Standard ICS 59.100.20 ? Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 13:38:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 10548:200
2、3 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 9 July 2003 BSI 9 July 2003 ISBN 0 580 42234 8 National foreword This British Standard is the official English language version of EN ISO 10548:2003.It is identical with ISO 10548:2003. It sup
3、ersedes BS EN ISO 10548:1996 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PRI/42, Fibre reinforced thermosetting plastic and prepegs, which has the responsibility to: A list of organizations represented on this committee can be obtained on request
4、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 Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Elect
5、ronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to u
6、nderstand the text; present to the responsible international/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. Summary of pages This document comp
7、rises a front cover, an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii to iv, pages 1 to 8, the Annex ZA page and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since pu
8、blication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 13:38:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 10548 July 2003 ICS 59.100.20Supersedes EN ISO 10548:1996 English version Carbon fibre - Determination o
9、f size content (ISO 10548:2002) Fibres de carbone - Dtermination du taux densimage (ISO 10548:2002) Kohlenstofffasern - Bestimmung des Prparationsmassenanteils (ISO 10548:2002) This European Standard was approved by CEN on 5 June 2003. CEN members are bound to comply with the CEN/CENELEC Internal Re
10、gulations 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 national standards may be obtained on application to the Management Centre or to any CEN member. This E
11、uropean 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 notified to the Management Centre has the same status as the official versions. CEN members are the nat
12、ional standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE
13、NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2003 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 10548:2003 E Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 13:38:2
14、6 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Foreword The text of ISO 10548:2002 has been prepared by Technical Committee ISO/TC 61 “Plastics” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 10548:2003 by Technical Committee CEN/TC 249 “Plastics“, the se
15、cretariat of which is held by IBN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by January 2004, and conflicting national standards shall be withdrawn at the latest by January 2004. This document
16、supersedes EN ISO 10548:1996. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Ital
17、y, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 10548:2002 has been approved by CEN as EN ISO 10548:2003 without any modifications. NOTE Normative references to International Standards are listed in
18、annex ZA (normative). EN ISO 10548:2003 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 13:38:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI INTERNATIONAL STANDARD ISO 10548 Second edition 2002-07-15 Reference number ISO 10548:2002(E) Carbon fibre Determination of size content Fibres de carbon
19、e Dtermination du taux densimage EN ISO 10548:2003 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 13:38:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii FDP dicslaimre This FDP fam elitnoc yt deddebme niayfep.seca In roccatiw ecnadA hycilop gnisnecil sebod, thf sim eliarp eb ytnieiv ro dewb
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22、 esu ry ISO merebm seidob. In the kilnuley evtne ttah a borpmel talerign to ti f si,dnuo saelpfni erom teh tneCS larterceratai ta thserdda es igvne olebw. EN ISO 10548:2003 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 13:38:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iii Contents Page 1S
23、cope . 1 2Normative reference . 1 3Terms and definitions 1 4Principle 1 5Test specimens . 2 6Conditioning 2 7Test methods 2 7.1Method A: Solvent extraction . 2 7.2Method B: Digestion with sulfuric acid and hydrogen peroxide . 4 7.3Method C: Decomposition by pyrolysis 7 8Precision . 8 9Test report 8
24、EN ISO 10548:2003 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 13:38:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing Internat
25、ional Standards is normally carried out through ISO technical committees. Each member 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 I
26、SO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standard
27、s adopted 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 International Standard may be
28、 the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. International Standard ISO 10548 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 13, Composites and reinforcement fibres. This second edition cancels and replaces
29、the first edition (ISO 10548:1994), which has been technically revised. EN ISO 10548:2003 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 13:38:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ANRETNIITOTS LANDNADRAISO 45012002:8)E( 1 Carbon fibre Determination of size content 1Scope This Intern
30、ational Standard specifies test methods for the determination of the size content of carbon fibre yarn. It is applicable to continuous-filament yarns and staple-fibre yarns. 2Normative reference The following normative document contains provisions which, through reference in this text, constitute pr
31、ovisions of this International Standard. For dated references, subsequent amendments to, or revisions of, this publication do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent edition of the normat
32、ive document indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 1886:1990, Reinforcement fibres Sampling plans applicable to received batches 3Terms and d
33、efinitions For the purposes of this International Standard, the following terms and definitions apply. 3.1 size any material applied to fibres to facilitate the handling and use of the fibres 3.2 size content mass of the size expressed as a percentage of the sized carbon fibre yarn 4Principle Test s
34、pecimens are weighed before and after removal of the size by one of the following three methods: method A: size removal by Soxhlet extraction, to be used when the size is completely soluble in a suitable solvent; method B: size removal by chemical digestion using a mixture of sulfuric acid and hydro
35、gen peroxide, used when the size is partially hardened and not completely soluble in solvents; method C: size decomposition by pyrolysis at high temperature in an atmosphere of nitrogen, used when the size is completely removed by pyrolysis. Methods A and B require the last weighing to be made to co
36、nstant mass by repetition of the final drying and weighing procedure. In those cases where known materials are being tested regularly, it is permitted to define, by experiment, a minimum time for drying which will ensure that constant mass has been reached. Particular care may be required if the car
37、bon fibre or sizing is water-absorbent. EN ISO 10548:2003 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 13:38:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2 5Test specimens Two test specimens or more shall be taken from each lot or yarn sample. The size content is taken as the average of t
38、he two or more determinations. If the determination is carried out for the purpose of lot acceptance, the lot received shall be sampled in accordance with ISO 1886. When handling test specimens, gloves shall be worn or tweezers used to avoid damage to the specimens. NOTEThe specification or the pers
39、on requiring the test may stipulate that additional determinations be carried out at different places within the elementary unit. 6Conditioning Elementary units and yarn samples shall be allowed to attain laboratory temperature before testing. Before weighing the yarn, it shall be dried if required.
40、 7Test methods 7.1Method A: Solvent extraction 7.1.1Apparatus and materials 7.1.1.1Balance, accurate to , readable to . 7.1.1.2Hot-air oven, capable of being controlled to . 7.1.1.3Desiccator, containing a suitable desiccant, for example silica gel, anhydrous calcium chloride or phosphorous pentoxid
41、e. 7.1.1.4Soxhlet extractor, capacity, with a flask. 7.1.1.5Soxhlet extraction thimbles, measuring . NOTEThe sizes of the Soxhlet extractor, the flask and the Soxhlet extraction thimbles are given as an indication only and may be varied to suit individual requirements. IMPORTANT The extraction and a
42、ll handling of organic solvents should be carried out in a fume cupboard. 7.1.1.6Rubber gloves or tweezers. 7.1.1.7Cutting blade. 7.1.1.8Heating mantle, fitted with a power regulator capable of controlling the boiling rate of the solvent. 7.1.1.9Distilled water, or an organic solvent such as butan-2
43、-one (methyl ethyl ketone), tetrahydrofuran, dichloromethane (methylene chloride), acetone or dichloroethane. NOTEThe choice of solvent depends upon the type of size applied to the carbon fibre under test. This choice is best made by consultation between the customer and the supplier. 0,5 mg0,1 mg 5
44、 C 200 ml500 ml 41 mm123 mm EN ISO 10548:2003 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 13:38:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 3 7.1.2Procedure 1 7.1.2.1Dry an extraction thimble (7.1.1.5) at in the oven (7.1.1.2) for and allow to cool to room temperature in a desiccator (7
45、.1.1.3). 7.1.2.2Weigh the thimble to the nearest (). 7.1.2.3Place a test specimen in the thimble and weigh to the nearest (). 7.1.2.4Place the thimble and its contents in the siphon chamber of the Soxhlet apparatus (7.1.1.4), and place a sufficient volume of solvent in the flask to ensure operation
46、of the siphon during the reflux cycles. 7.1.2.5Extract for , adjusting the heating mantle (7.1.1.8) so that at least four reflux cycles occur during the extraction period (a shorter extraction period may, however, be used if it can be demonstrated to give complete extraction). 7.1.2.6Turn off the he
47、ating mantle. Wait for the apparatus to cool. Remove the thimble and contents. Allow to stand at ambient temperature for to allow excess solvent to evaporate. 7.1.2.7Dry the thimble and contents for in the oven (7.1.1.2) at (or, if the solvent used has a boiling point higher than , at a temperature
48、above the boiling point of the solvent) and allow to cool in a desiccator. Weigh to the nearest . 7.1.2.8Repeat the drying and weighing procedure until the difference in mass between two successive weighings () is less than . If a minimum drying time known to give constant mass has been established
49、(see clause 4), this requirement does not apply. 7.1.3Procedure 2 7.1.3.1If the specimen is free of loose fibre and can be coiled into a form which can be inserted into the Soxhlet extraction chamber without the danger of loss of fibre during extraction, an extraction thimble need not be used. 7.1.3.2Weigh the test specimen to the nearest (). 7.1.3.3Carry out the extraction as described in Procedure 1, but without the extraction thimble. 7.1.3.4Dry the specimen for at or a high