1、BRITISH STANDARD BS ISO 10371:1993 Implementation of ISO10371:1993 Fibre reinforced plastics Braidedtapes for composite materials reinforcement Basisfor a specification UDC 677.076.75-418:678.029.46BSISO10371:1993 This BritishStandard, having been prepared under the directionof the Sector Board forM
2、aterials and Chemicals, waspublished under the authorityof the Standards Boardand comes into effect on 15August1995 BSI 02-2000 The following BSI references relate to the work on this standard: Committee reference PRI/41 Draft for public comment 91/38677 DC ISBN 0 580 24559 4 Committees responsible
3、for this BritishStandard The preparation of this BritishStandard was entrusted to Technical Committee PRI/41, Fibre reinforcement for plastics and composite test methods, upon which the following bodies were represented: British Plastics Federation Department of the Environment (Building Research Es
4、tablishment) Department of Trade and Industry (National Physical Laboratory) Ministry of Defence Motor Industry Research Association Amendments issued since publication Amd. No. Date CommentsBSISO10371:1993 BSI 02-2000 i Contents Page Committees responsible Inside front cover National foreword ii Fo
5、reword iii Text of ISO10371 1BSISO10371:1993 ii BSI 02-2000 National foreword This BritishStandard reproduces verbatim ISO10371:1993 and implements it as the UK national standard. This BritishStandard is published under the direction of the Sector Board for Materials and Chemicals whose Technical Co
6、mmittee IST/XX has the responsibility to: aid enquirers to understand the text; present to the responsible international committee any enquiries on interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in
7、the UK. NOTEInternational and European Standards, as well as overseas standards, are available from Customer Services, BSI,389 Chiswick High Road, London W44AL. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for t
8、heir correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, theISO title page, pagesii to iv, pages1 to3 and a back cover. This standard has been u
9、pdated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.ISO10371:1993(E) ii BSI 02-2000 Contents Page Foreword iii 1 Scope 1 2 Normative references 1 3 Definitions 1 4 Description and designation 1 4.1 Technical de
10、scription of braided tapes 1 4.2 Designation 1 5 Characteristics 2 5.1 General 2 5.2 Characteristics to be specified 2 5.2.1 Type and construction 2 5.2.2 Treatment 2 5.3 Defects 2 5.3.1 Braiding defects 2 6 Sampling and selection of test pieces 2 6.1 Sampling of a batch 2 6.2 Selection of test piec
11、es 2 6.3 Conditioning of specimens 3 7 Test methods 3 7.1 Thickness 3 7.2 Width, braid angle and mass per metre length 3 7.2.1 Apparatus 3 7.2.2 Conditioning 3 7.2.3 Procedure 3 8 Packaging and ordering 3 8.1 Packaging 3 8.2 Ordering data 3 9 Storage 3ISO10371:1993(E) BSI 02-2000 iii Foreword ISO (t
12、he 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 member body interested in a subject for which a technical commit
13、tee 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 Electrotechnical Commission (IEC) on all matters of electrotech
14、nical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least75% of the member bodies casting a vote. International Standard ISO10371 was prepared by Tech
15、nical Committee ISO/TC61, Plastics, Sub-Committee SC13, Composites and reinforcement fibres.iv blankISO10371:1993(E) BSI 02-2000 1 1 Scope This International Standard provides a basis for specifications applicable to braided tapes used as reinforcements in plastics. It deals with tapes braided from
16、all types of yarn or roving. 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 indicated were valid. All standards are subject to revision, and partie
17、s 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 International Standards. ISO139:1973, Textiles Standard atmospheres f
18、or conditioning and testing. ISO291:1977, Plastics Standard atmospheres for conditioning and testing. ISO1886:1990, Reinforcement fibres Sampling plans applicable to received batches. ISO1887:1980, Textile glass Determination of combustible matter content. ISO1889:1987, Textile glass Continuous fila
19、ment yarns, staple fibre yarns, textured yarns and rovings (packages) Determination of linear density. ISO2797:1986, Textile glass Rovings Basis for a specification. ISO3598:1986, Textile glass Yarns Basis for a specification. ISO4603:1993, Textile glass Woven fabrics Determination of thickness. ISO
20、10120:1991, Carbon fibre Determination of linear density. 3 Definitions For the purposes of this International Standard, the following definitions apply. 3.1 braided tape a tape made by interlacing (braiding or plaiting) three or more yarns or rovings in such a way that they cross one another and ar
21、e laid together in diagonal formation 3.2 braiding a method of interlacing yarns or rovings 3.3 construction the type, machine-setting and number of yarns or rovings per carrier 3.4 carrier the braiding-machine part on which the yarns or rovings are wound 3.5 braid angle the angle between the longit
22、udinal axis of a braid and the direction of the yarn or roving 4 Description and designation 4.1 Technical description of braided tapes The complete description of a braided tape requires definition of the following points: a) the designation of the braid yarn(s); b) the construction of the braided
23、tape; c) the braid angle at a specific length; d) the type of treatment; e) the mass per unit length of the tape. As the full description is unwieldy, the manufacturers of tapes normally give a code-number to their products to simplify ordering and stocking. The full description of the tape shall, h
24、owever, be given in the manufacturers catalogue against its code-number. Thus this technical description is not meant for use in the designation of tapes, but is intended to be used as an aid in the preparation of standardized descriptions in the tape catalogues and to ensure consistency of tape ide
25、ntification. 4.2 Designation The designation shall be made up of the following four groups of code-letters/numbers. a) The first group (maximum of four characters) indicates the fibre type or types used in the braiding. The following code-letters shall be used to designate different fibre types: G =
26、 Glass fibre C = Carbon fibre A = Aramid fibre E = Ceramic fibre V = Any other fibreISO10371:1993(E) 2 BSI 02-2000 If two or more fibre types are combined in a hybrid braiding, two or more code-letters shall be used: EXAMPLES CG = Carbon/glass CAE = Carbon/aramid/ceramic CGEA = Carbon/glass/ceramic/
27、aramid NOTE 1If several fibre types are used, they shall be given in order of the cross-sectional area (i.e.the mass per unit length divided by the density) of the fibre concerned, starting with the fibre having the greatest cross-sectional area. b) The second group (three digits) indicates the widt
28、h, in millimetres, of the braided tape. c) The third group (three digits) indicates the mass, in grams, per metre length of tape. d) The fourth group (two digits) indicates the braid angle, in degrees, at the width defined in the second group. EXAMPLE Tape width, mass per metre length and braid angl
29、e may be determined by the method specified in7.2. 5 Characteristics 5.1 General The braided tape shall be of uniform structure. 5.2 Characteristics to be specified 5.2.1 Type and construction 5.2.1.1 The type of braiding yarn or roving shall be in accordance with ISO2797 and/or ISO3598 (for glass f
30、ibres only). 5.2.1.2 The construction of the braided tape shall be specified by a) the type(s) of yarn used on each carrier; b) the linear density, in tex or decitex, of the braid yarns in accordance with ISO1889 or ISO10120; c) the number of carriers; d) the type of braid: 1) standard or regular br
31、aid: one carrier passes alternately under and over, or inside and outside, two other carriers, 2) two-by-two or paired braid: the carriers run in pairs, each pair passing alternately under and over every other pair, revolving in the opposite direction; e) the braid angle at a specific width; f) the
32、mass per metre length of the tape at that width. 5.2.1.3 A roll or spool of tape shall be assumed to be one length, unless otherwise stated. 5.2.1.4 The nominal thickness shall be subject to agreement between supplier and buyer. It shall be given in millimetres. 5.2.2 Treatment 5.2.2.1 Type of treat
33、ment Specify the treatment from the following: a) textile size; b) plastic size; c) desized; d) coupling finish; e) any other treatment. 5.2.2.2 Amount of size and finish The amount of size and finish shall be expressed as a nominal percentage by mass in accordance with ISO1887. 5.3 Defects 5.3.1 Br
34、aiding defects 5.3.1.1 Ends out: a gap caused by a missing braiding yarn. 5.3.1.2 Tight end: a braiding yarn braided under excessive tension. 5.3.1.3 Slack end: a braiding yarn braided under insufficient tension. 5.3.1.4 Angle deviation over a specified length. 5.3.2 Other defects 5.3.2.1 Dirt: self
35、-descriptive. 5.3.2.2 Folds: self-descriptive. 5.3.2.3 Grease: self-descriptive. 5.3.2.4 Holes: self-descriptive. 5.3.2.5 Faulty splices: self-descriptive. 6 Sampling and selection of test pieces 6.1 Sampling of a batch Follow the specifications given in ISO1886. 6.2 Selection of test pieces Each te
36、st method specifies the number of test pieces (one or more) to be tested from each elementary unit (or from the laboratory sample taken from each elementary unit) in order to obtain a test result for the method concerned. The product specification may state that the test shall be carried out on samp
37、les taken from different locations in the elementary unit. In this case, instructions concerning the selection of sampling locations within the elementary units shall be given in the specification. When checking for visual defects, the whole length of each roll selected shall be checked.ISO10371:199
38、3(E) BSI 02-2000 3 6.3 Conditioning of specimens Specimens shall be kept for at least6h in one of the atmospheres specified in ISO291 or ISO139 generally23 C 2 C,(50 5)% relative humidity, unless a different conditioning atmosphere is specified. 7 Test methods 7.1 Thickness The method specified in I
39、SO4603 may be used to measure the thickness of the flat braid. 7.2 Width, braid angle and mass per metre length The procedure described enables a braided tape to be characterized in terms of its width, braid angle and mass per metre length, the values obtained being used to generate a designation co
40、de. 7.2.1 Apparatus 7.2.1.1 Rule, to measure in millimetres, to the nearest0,5mm, the length and width of the specimen and the length of a yarn or roving taken from the specimen. 7.2.1.2 Balance, with an accuracy of0,01g, to determine the mass of the specimen. 7.2.1.3 Pair of scissors or knife, suit
41、able for cutting the specimen. 7.2.2 Conditioning See6.3. 7.2.3 Procedure Lay a length of braided tape on a table in such a way that its width is the same from one end to the other. The length of the specimen shall be between500mm and1000mm. Measure the length, in millimetres, of the specimen. Measu
42、re the width, in millimetres, of the specimen. Determine the mass, in grams, of the specimen. Take a yarn or roving from the specimen and measure its length in millimetres. Calculate the braid angle t , expressed in degrees, at the point at which the width was measured, using the equation Either cal
43、culate the mass per metre length W 45 , expressed in grams per metre, at a braid angle of45 (when0 rovings are not used), using the equation or calculate the mass per metre length W, expressed in grams per metre, from the number of carriers, using the equation From the values obtained for the tape w
44、idth, braid angle and mass per metre length, generate the tape designation code as specified in4.2. 8 Packaging and ordering 8.1 Packaging Recommendations regarding packaging shall be given in the specification. 8.2 Ordering data 8.2.1 Reference number and title of this International Standard 8.2.2
45、Quality desired 8.2.3 Type of braid required 8.2.4 Required braid angle at the width specified 8.2.5 Type of yarn or roving and number of carriers required 8.2.6 Roll or spool mass in kilograms 8.2.7 Designation (see4.2) 9 Storage The packaging required to ensure that the quality of the braiding doe
46、s not deteriorate during storage shall be precisely described in the specification. where L t is the length, in millimetres, of the specimen; L y is the length, in millimetres, of the yarn or roving taken from the specimen. where W t is the mass, in grams, of the specimen; L y is the length, in mill
47、imetres, of the yarn or roving taken from the specimen; t is the braid angle, in degrees, at the point at which the specimen width was measured. where N is the number of carriers; l is the linear density of the yarn or roving; t is the braid angle, in degrees, at the point at which the specimen widt
48、h was measured.BS ISO 10371:1993 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter
49、. Revisions BritishStandards are updated by amendment or revision. Users of BritishStandards 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 BritishStandard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel:02089969000. Fax:02089967400. BSI offers members an individual up
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