BS-7658-2-1993 ISO-10120-1991.pdf
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1、BRITISH STANDARD BS 7658-2: 1993 ISO 10120: 1991 Carbon fibre Part 2: Method for determination of linear density Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 13:19:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7658-2:1993 This British Standard, having been
2、 prepared under the direction of the Plastics and Rubber Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 15 April 1993 BSI 10-1999 The following BSI references relate to the work on this standard: Committee reference PRM/41 Draft for comm
3、ent 90/42526 DC ISBN 0 580 21727 2 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Plastics and Rubber Standards Policy Committee (PRM/-) to Technical Committee PRM/41, upon which the following bodies were represented: British Plastics F
4、ederation Department of Trade and Industry (National Physical Laboratory) Ministry of Defence Motor Industry Research Association Amendments issued since publication Amd. No.DateComments Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 13:19:07 GMT+00:00 2006, Un
5、controlled Copy, (c) BSI BS 7658-2:1993 BSI 10-1999i Contents Page Committees responsibleInside front cover National forewordii 1Scope1 2Normative references1 3Definitions1 4Principle1 5Apparatus1 6Sampling1 7Atmosphere for testing1 8Test specimens1 9Procedure2 10Expression of results2 11Precision2
6、12Test report2 Table 11 List of referencesInside back cover Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 13:19:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7658-2:1993 ii BSI 10-1999 National foreword This Part of BS 7658 has been prepared under the direc
7、tion of the Plastics and Rubber Standards Policy Committee and is identical with ISO 10120:1991 Carbon fibre Determination of linear density, prepared by the International Organization for Standardization (ISO). The Technical Committee has reviewed the provisions of ISO 1886, to which normative refe
8、rence is made in the text, and has decided that they are acceptable for use in conjunction with this standard. 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 Britis
9、h Standard does not of itself confer immunity from legal obligations. Cross-references International StandardCorresponding British Standard ISO 291:1977BS 2782 Methods of testing plastics Part 0:1992 Introduction (Appendix A is identical) ISO 1144:1973BS 947:1970 Specification for a universal system
10、 for designating linear density of textiles (Tex system) (Technically equivalent) Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 and 2, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had
11、amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 13:19:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7658-2:1993 BSI 10-19991 1 Scope This International Standard
12、specifies a method for determining the linear density (mass per unit length) of carbon fibre yarns. When the determination of the linear density is carried out on sized fibre, a correction shall be made by calculation based on the size content (see 10.2). The linear density determined by the method
13、specified in this International Standard does not consider the influence of twist in the yarn. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indic
14、ated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid Int
15、ernational Standards. ISO 291:1977, Plastics Standard atmospheres for conditioning and testing. ISO 1144:1973, Textiles Universal system for designating linear density (Tex System). ISO 1886:1990, Reinforcement fibres Sampling plans applicable to received batches. 3 Definitions For the purposes of t
16、his International Standard, the following definitions apply. 3.1 size all materials applied to fibres to facilitate the handling and use of the fibre and/or to promote the adhesion of a matrix material to the surface of the fibre 3.2 size content the mass of the size expressed as a percentage of the
17、 mass of the sized carbon fibre filament yarn 3.3 linear density the mass per unit length of a carbon fibre yarn, expressed in the tex system (see ISO 1144) 3.4 pre-tension the tension applied to a specimen when determining the linear density 4 Principle The mass per unit length, in grams per kilome
18、tre (tex), is determined by weighing a test specimen of known length, the length being measured at a specified pre-tension. 5 Apparatus 5.1 Analytical balance, readable to 0,1 mg. 5.2 Cutting device, for cutting test specimens to the required length, to an accuracy of 1 mm, under the required pre-te
19、nsion. 5.3 Hot-air oven, capable of being maintained at a temperature of 105 C 5 C. 5.4 Desiccator, containing calcium chloride or another suitable drying agent. 5.5 Wrap reel, for unwinding the yarn, the reel perimeter being 1 m. 6 Sampling The sampling plan shall be agreed between the interested p
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