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1、BRITISH STANDARD BS EN ISO 2078:1995 BS 946-2:1995 Textile glass Yarns Designation The European Standard EN ISO 2078:1994 has the status of a British Standard Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 13:20:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 2078:1995 This British S
2、tandard, having been prepared under the direction of the Sector Board for Materials and Chemicals, was published under the authority of the Standards Board and comes into effect on 15 May 1995 BSI 01-2000 The following BSI references relate to the work on this standard: Committee reference PRI/41 Dr
3、aft for comment 89/40281 DC ISBN 0 580 23663 3 Cooperating organizations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following countries: AustriaOesterreichisches Normungsinstitut
4、 BelgiumInstitut belge de normalisation DenmarkDansk Standard FinlandSuomen Standardisoimisliito, r.y. FranceAssociation franaise de normalisation GermanyDeutsches Institut fr Normung e.V. GreeceHellenic Organization for Standardization IcelandTechnological Institute of Iceland IrelandNational Stand
5、ards Authority of Ireland ItalyEnte Nazionale Italiano di Unificazione LuxembourgInspection du Travail et des Mines NetherlandsNederlands Normalisatie-instituut NorwayNorges Standardiseringsforbund PortugalInstituto Portugus da Qualidade SpainAsociacin Espaola de Normalizacin y Certificacin SwedenSt
6、andardiseringskommissionen i Sverige SwitzerlandAssociation suisse de normalisation United KingdomBritish Standards Institution Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 13:20:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN IS
7、O 2078:1995 BSI 01-2000i Contents Page Cooperating organizationsInside front cover National forewordii Foreword2 1Scope3 2Normative references3 3Definition3 4Designation of a yarn3 National annex NA (informative) Committees responsibleInside back cover National annex NB (informative) Cross-reference
8、Inside back cover Table 13 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 13:20:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 2078:1995 ii BSI 01-2000 National foreword This British Standard has been prepared under the direction of the Sector Board for Materials and Chemicals and i
9、s the English language version of EN ISO 2078:1994 Textile glass Yarns Designation, published by the European Committee for Standardization (CEN). It does not supersede any current British Standard but attention is drawn to BS 946:1970 Method for the designation of yarns which deals also with the de
10、signation of yarns in the Tex system. 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. Sum
11、mary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN ISO title page, pages 2 to 6, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendmen
12、t table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 13:20:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 2078 October 1994 ICS 59.100.10 Descriptors: Textile glass, textile glass yarns, designation English
13、version Textile glass Yarns Designation (ISO 2078:1993) Verre textile Fils Dsignation (ISO 2078:1993) Textilglas Garne Bezeichnung (ISO 2078:1993) This European Standard was approved by CEN on 1994-08-25. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the c
14、onditions 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 Central Secretariat or to any CEN member. This European Standard exists in th
15、ree 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 Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of A
16、ustria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat:
17、 rue de Stassart 36, B-1050 Brussels 1994 Copyright reserved to CEN members Ref. No. EN ISO 2078:1994 E Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 13:20:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 2078:1994 BSI 01-2000 2 Foreword This European Standard was taken over by the Tech
18、nical Committee CEN/TC 249, Plastics, from the work of ISO/TC 61, Plastics, of the International Organization for Standardization (ISO). CEN/TC 249 had decided to submit the final draft for formal vote. The result was positive. This European Standard shall be given the status of a national standard,
19、 either by publication of an identical text or by endorsement, at the latest by April 1995, and conflicting national standards shall be withdrawn at the latest by April 1995. According to the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Aus
20、tria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 13:20:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 2078:1994 BSI 01
21、-20003 1 Scope This International Standard specifies a system of designating textile glass yarns including single, multiple-wound, folded (plied), cabled and textured yarns, strands, slivers and rovings based on their linear density expressed in the tex system. This International Standard applies th
22、e rules of the single-to-fold designation given in ISO 1139 to these textile glass products. 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 indicat
23、ed 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 Inter
24、national Standards. ISO 2:1973, Textiles Designation of the direction of twist in yarns and related products. ISO 472:1988, Plastics Vocabulary. ISO 1139:1973, Textiles Designation of yarns. 3 Definitions For the purposes of this International Standard, the definitions given in ISO 2 and ISO 472 app
25、ly. 4 Designation of a yarn 4.1 Elements of the designation According to the definition given in ISO 1139, the designation of a yarn (single yarn, strand, sliver, ., roving) is a condensed technical description containing the following elements. 4.1.1 Glass used One or several letters, to specify th
26、e glass used by the manufacturer (see Table 1). Table 1 4.1.2 Type of yarn A letter to describe the type of yarn: C (continuous) for continuous-filament yarns, D (discontinuous) for staple-fibre yarns. NOTE 1These letters are placed in the first group, as it is of special importance in the case of t
27、extile glass to distinguish between continuous-filament yarns and staple fibre yarns; their use makes it unnecessary to indicate the number of filaments, preceded by the symbol f, as proposed in ISO 1139. 4.1.3 Nominal diameter of fibre A number, consisting of one or two figures, giving the nominal
28、diameter, in micrometres, of the filament or staple fibre. 4.1.4 Linear density, direction and amount of twist and number of components Some, or all, of the following elements, as in ISO 1139: a) a number giving the linear density expressed in the tex system. It is strongly recommended that the tex
29、be used as the basic unit, in which case the word “tex” can be omitted from the designation (if multiples or submultiples of the tex are used, these units shall be indicated after the value given for linear density); b) the direction(s) of twist;1) c) the amount(s) of twist, expressed in turns per m
30、etre, for the twist of the final stage, and (if necessary) in the full designation, for the twist of each intermediate stage; d) the number of components in folding (plying) or cabling. TypeGeneral indications E D A C S R AR E-CR for general purposes; good electrical properties good dielectric prope
31、rties high alkali content chemical resistance high mechanical strength high mechanical strength alkali resistant for use in acid environments 1) If the yarn has been subjected to a twisting operation, this shall be indicated by the direction of twist followed by the degree of twist. If the designati
32、on does not include any mention of twist, this shall always be taken to signify the absence of any twisting operation. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 13:20:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 2078:1994 4 BSI 01-2000 4.1.5 Manufacturers code If desired, the de
33、signation may also include the manufacturers code, permitting the incorporation of any complementary information that does not appear among the previous elements, for example the type of size and the overall linear density. If it is included, the manufacturers code shall be placed either before or a
34、fter the designation as defined below and never between the elements of the designation for example in the case of folded (plied) yarns having dissimilar components. 4.2 Designation of different types of textile glass yarn Subclauses 4.2.1 to 4.2.8 give the elements that shall appear in the designat
35、ion of various types of glass yarn. 4.2.1 Strands a) the type of glass used; b) the letter C for continuous-filament yarn; c) the nominal diameter, in micrometres, of the filaments, followed by a space; d) the linear density, preferably in tex see 4.1.4 a). EXAMPLE EC10 40 4.2.2 Slivers a) the type
36、of glass used; b) the letter D (discontinuous) for staple-fibre yarns; c) the nominal diameter, in micrometres, of the staple fibres, followed by a space; d) the linear density, preferably in tex see 4.1.4 a). EXAMPLE ED7 190 4.2.3 Single yarns 4.2.3.1 Single continuous-filament yarns a) the type of
37、 glass used; b) the letter C for continuous-filament yarn; c) the nominal diameter, in micrometres, of the filaments, followed by a space; d) the linear density, preferably in tex see 4.1.4 a), followed by a space; e) the direction of twist, followed by a space; f) the amount of twist, expressed in
38、turns per metre. EXAMPLE EC9 34 Z 40 NOTE 2When several strands are assembled in parallel and twisted together, only the overall linear density of all the strands before twisting is given. For example, starting with four strands of EC9 34 and twisting these together, the designation of the resulting
39、 yarn is EC9 136 Z 40. 4.2.3.2 Single staple-fibre yarns a) the type of glass used; b) the letter D (discontinuous) for staple-fibre yarns; c) the nominal diameter, in micrometres, of the staple fibres, followed by a space; d) the linear density, preferably in tex see 4.1.4 a), followed by a space;
40、e) the direction of twist, followed by a space; f) the amount of twist, expressed in turns per metre. EXAMPLE ED7 190 Z 160 4.2.3.3 Textured yarns a) the type of glass used; b) the letter C or D for the designation of the original yarn (see 4.1.2); c) the nominal diameter, in micrometres, of the fil
41、aments, followed by a space; d) the linear density, preferably in tex see 4.1.4 a), before texturing, followed by a space; e) the linear density, preferably in tex see 4.1.4 a), after texturing, preceded by the letter T. EXAMPLE EC9 340 T352 4.2.4 Folded (plied) (doubled) yarns2) 4.2.4.1 Folded (pli
42、ed) yarns having identical components a) Full designation: 1) the designation of the single continuous-filament or staple-fibre yarns used, in accordance with 4.2.3.1 or 4.2.3.2, followed by a space; 2) a multiplication sign, , followed by a space; 3) the number of single continuous-filament or stap
43、le-fibre yarns, followed by a space; 4) the direction of the folding (plying) twist, followed by a space; 5) the amount of folding (plying) twist, expressed in turns per metre. EXAMPLES EC9 34 Z 160 2 S 150 ED7 190 Z 160 2 S 260 2) This term is defined in ISO 1139. Licensed Copy: sheffieldun sheffie
44、ldun, na, Sun Nov 19 13:20:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 2078:1994 BSI 01-20005 b) Simplified designation: 1) the designation of the single continuous-filament or staple-fibre yarns used, in accordance with 4.2.3.1 or 4.2.3.2, without indication of the direction or amount of t
45、wist the twist of folded (plied) yarns is generally balanced, followed by a space; 2) a multiplication sign, , followed by a space; 3) the number of single continuous-filament or staple-fibre yarns, followed by a space; 4) the direction of the folding (plying) twist, followed by a space; 5) the amou
46、nt of folding (plying) twist, expressed in turns per metre. EXAMPLES EC9 34 2 S 150 EC9 190 2 S 260 4.2.4.2 Folded (plied) yarns having dissimilar components a) the designations of the single continuous-filament yarns used, in accordance with 4.2.3.1, joined by a plus sign, +, preceded and followed
47、by a space, the whole being placed in parentheses and followed by a space; b) the direction of the folding (plying) twist, followed by a space; c) the amount of folding (plying) twist, expressed in turns per metre. EXAMPLE (EC9 34 Z 150 + EC7 22 Z 150) S 100 4.2.5 Cabled yarns a) Full designation: T
48、he designation of the yarn used, including the direction and the amount of twist for each stage, the information for each stage being separated by a multiplication sign, , preceded and followed by a space. EXAMPLE EC9 34 Z 150 2 S 100 3 Z 80 b) Simplified designation: The twist of cabled yarns is ge
49、nerally balanced, and in most cases it is not necessary to know the direction and the amount of twist of each of the intermediate stages; consequently, the simplified designation for a cabled yarn shall only show the direction and the amount of final twist. The simplified designation shall therefore consist of the following elements: 1) the designation of the single continuous-filament yarns, in accordance with 4.2.3.1, omitting the direction and the amount of twist, followed by a space; for each in