1、CEN EN*IS0+2060 95 = 3404589 O104242 708 = BRITISH STANDARD Textiles - krn from packages - Determination of linear density (mass per unit length) by the skein method The European Standard EN IS0 2060 : 1995 has the status of a British Standard BS EN IS0 -060 : 1995 BS EN IS0 2060 : 1995 Amd. No. Thi
2、s British Standard, 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 August 1995 O BSI 1995 Date %xt affected The following BSI references relate to the work on this standard
3、: Committee reference KU24 Draft for comment 93/306086 DC ISBN O 580 24261 7 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee TcV24, Physical testing, upon which the following bodies were represented: Association of Consul
4、ting Scientists Association of Suppliers to the British Clothing Industry British Apparel and lxtile Confederation British Measurement and Testing Association British Polyolefin Textiles Association British lextile Machinery Association British Textile Technology Group British Throwstem Association
5、Furniture Industry Research Association International Wool Secretariat Ministry of Defence SATRA Footwear Txhnology Centre Society of Dyers and Colourists Extile Finishers Association Textile Institute Amendments issued since publication CEN EN*ISO*2060 95 3404589 0304244 780 BS EN IS0 2060 : 1995 C
6、ontents Committees responsible National foreword Page Inside front cover ii Foreword Method 1 Scope 2 Normative references 3 Definitions 4 Principle 5 Apparatus 6 Standard atmospheres 7 Sampling 8 Preconditioning and conditioning 9 Test specimens 10 11 Procedure and calculations 12 Test reDort Prepa
7、ration of specimens (test skeins) for yarn numbering 2 3 3 4 4 5 5 5 6 6 6 6 9 Annexes A (normative) Means of checking the length of the skein by skein gauges 10 B (normative) Procedure for sampling 11 C (informative) Suggested method for scouring yarn to remove finishing materials 12 D (informative
8、) Suggested method for rapid conditioning of samples or specimens 13 E (informative) Linear density conversion factors 14 ables D. 1 Conditioning periods 14 B.1 Bulk sample 11 i CEN EN*IS0*2060 95 3404589 0304,245 627 BS EN IS0 2060 : 1995 National fore word This British Standard has been prepared b
9、y Rchnical Committee EU24 and is the English language version of EN IS0 2060 : 1995 libtiles - Determination of linear dens.ity mass per unit mgth by the skin method, which is identical with IS0 2060 : 1994 published by the International Organization for Standardization Cross-references Publication
10、referred to Is0 139 : 1973 (ISO). Corresponding British Standard BS EN 20139 : 1992 l?xrtiks - Standard atmospheres for conditioning and testing Compliance with a British Standard does not of itself confer immunity from legal obligations. ii CEN EN*ISO*2060 95 m 3404589 0304246 553 m EUROPEAN STANDA
11、RD EN IS0 2060 NORME EUROPENNE EUROPISCHE NORM February 1995 ICs 59.080; 59.080.20 Descriptors: Textiles, textile products, yarns, tests, physical tests, determination, linear density, density measurement, packages (Yani) English version Textiles - Yarn from packages - Determination of linear densit
12、y (mass per unit length) by the skein method (IS0 2060 : 1994) Textiles - Fils sur enroulements - Dtermination de la masse linique (masse par unit de longueur) par la mthode de lcheveau) (IS0 2060 : 1994) Textilien - Garne von Aufmachungseinheiten - Bestimmung der Feinheit (Masse je Lngeneinheit) du
13、rch Strangverfahren) (IS0 2060 : 1994) This European Standard was approved by CEN on 1994-12-12. CEN members are bound to comply with the CENKENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-d
14、ate 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 three official versions (English, French, German). A version in any other language made by translation under th
15、e 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 Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands,
16、 Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels O 1995 All rights of reproduction and communication in any form and by a
17、ny means reserved in ail countries to CEN and its members Ref. No. EN IS0 2060 : 1995 E CEN EN*IS0*2060 95 3404589 OLO4247 4T page 2 EN IS0 2060 : 1995 Foreword The text of the International Standard IS0 2060 : 1994 has been prepared by Technical Committee ISO/E 38, Textiles, in collaboration with C
18、EN/TC 248. It has been submitted to parallel vote and has been approved on 1994-12-12 as a European Standard. 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 August 1995, and conflicting national
19、standards shail be withdrawn at the latest by August 1995. According to CENKENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portu
20、gal, Spain, Sweden, Switzerland, United Kingdom. NOTE. Normative references to international publications are listed in annex ZA (normative). CEN EN*IS0*2060 95 = 3404589 0304248 326 Page 3 EN IS0 20 : 1995 Textiles - Yarn from packages - Determination of linear density (mass per unit length) by the
21、 skein method 1 Scope This International Standard specifies a method for the determination of the linear density of all types of yarn in package form, with the exception of any yarn that may be the subject of a separate International Stan- dard. it includes seven optional procedures based on dif- fe
22、rent methods of conditioning and preparation (see 4.1 and 4.2). Since the different procedures do not give the same values, it is essential that the proce- dure used is agreed by all parties interested in the test results. While this method is designed solely for the determi- nation of mass per unit
23、 length of yarn, it is frequently desirable to combine this determination with tests for strength and/or tests for commercial mass. if, in such a case, skein lengths other than those specified are used, the length used, and any special corrections based on it, are subject to agreement between the in
24、terested parties. This method is applicable to a) single yarns (spun, monofilament or multifila- ment); b) folded (plied) yarns; c) cabled yarns. It is not applicable, except by agreement, to yarns which stretch more than 0,5 % when the tension, in centinewtons, per unit linear density of yarn, in t
25、ex, increases from 0,5 to l,O. Such yarns may be tested under special conditions if they are accepted by all the parties interested in the test results. The method is not applicable to yarns having a linear density greater than 2 O00 tex. For such yarns, other skein lengths and special conditions of
26、 reeling may be adopted by agreement of the interested parties. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of pub- lication, the editions indicated were valid. Ali stan- da
27、rds 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 IS0 maintain registers of currently valid International Standards. IS0 1
28、39: 1 973, Textiles - Standard atmospheres for conditioning and testing. IS0 1 139: 1973, Textiles - Designation of yarns. IS0 1144:1973, Textiles - Universal system for des- ignating linear density (Tex System). IS0 1833:1977 and IS0 1833:1977/Amd.1:1980, Textiles - Binary fibre mixtures - Quantita
29、tive chemical analysis. 1 ) See also IS0 1889:1987, Textile glass - Continuous filament yarns, staple fibre yarns, textured yarns and rovings fpack- ages) - Determination of linear density and IS0 10120:1991, Carbon fibre - Determination of linear density, which were prepared specially for the needs
30、 of textile glass technologies. CEN EN*ISO*ZObO 95 3404589 OLOY249 2b2 Page 4 EN IS0 2060 : 1995 3 Definitions For the purposes of this International Standard, the following definitions apply. 3.1 linear density: Mass per unit length of a yarn. It is expressed in tex or its multiples or submultiples
31、. see IS0 1139:1973 and IS0 1144:1973. 3.2 commercial moisture regain: Arbitrary value formally adopted as the moisture regain to be used with the ovendry mass when calculating a) the linear density, or b) the commercial or legal mass of a shipment or lot (consignment) of any specific textile materi
32、al. 3.3 commercial allowance: Arbitrary value equiv- alent to the commercial moisture regain plus an ap proved allowance for finish, formally adopted for use with the ovendry mass when calculating a) the linear density, or b) the commercial or legal mass of a shipment or delivery of any specific tex
33、tile material. 3.4 moisture equilibrium: Condition reached by a sample at a closely defined temperature and relative humidity when the net difference between the amount of moisture absorbed and the amount desorbed, as indicated by a change in mass, shows no trend and becomes insignificant. 3.5 moist
34、ure equilibrium for testing: A textile material is in moisture equilibrium with the ambient atmosphere when it does not exchange water with this atmosphere; its mass then remains constant as long as the experiment is carried out in an unchanged atmosphere. For test purposes, moisture equilibrium is
35、reached by absorption starting from a relatively low moisture content. Moisture equilibrium for testing is considered as having been reached when the rate of increase in mass of a sample or specimen due to moisture uptake does not exceed that prescribed for the material being tested (see IS0 139). 3
36、.6 moisture-free mass (1) Constant mass of a specimen obtained by drying material at a temperature of 105 “C f 3 “C in a cur- rent of dry air. (2) Amount of dry substance calculated from inde- pendent determination of moisture content, for ex- ample, distillation with an immiscible solvent or titrat
37、ion with Karl Fischer reagent (see also 3.7). 3.7 oven-dry mass: Constant mass of a specimen obtained by drying in an oven under prescribed con- ditions of temperature and humidity. NOTE 1 Conditions most frequently used are a tempera- ture of 105 “C f 3 “C and an air supply having a relative humidi
38、ty of 65 % at 20 OC, under which conditions the specimens will not be moisture-free. 3.8 yarn package: Length or lengths of yarn in a form suitable for use, handling, storing or shipping. Packages may be unsupported, such as balls, skeins or cakes, or supported, such as bobbins, cops, cones, pirns,
39、spools, tubes or beams. 3.9 test skein; lea skein; numbering skein: Small skein which has a prescribed length of yarn and is used in this International Standard for the determi- nation of linear density or breaking load, or both. 4 Principle The linear density is calculated from the length and mass
40、of suitable specimens. Specimens of suitable length are prepared by reeling test skeins for yarn numbering under specified conditions from samples that have been adequately conditioned after suitable preconditioning in skein form. In practice, the mass of the skeins is determined under various condi
41、tions, as noted in 4.1.1 to 4.1.3 and 4.2.1 to 4.2.4. Any one of the options given in 4.1 and 4.2 may be used if mutually agreed. 4.1 Unscoured yarn 4.1.1 Option 1: mass of the conditioned yarn at equilibrium with the standard atmosphere for testing (see 11.3.1). 4.1.2 Option 2: mass of the oven-dry
42、 yarn (see 11.3.2). 4.1.3 Option 3: mass of the oven-dry yarn plus the commercial moisture regain (see 11.3.3). 4.2 Scoured yarn 4.2.1 Option 4: mass of the scoured yarn at equi- librium with the standard atmosphere for testing (see 11.4.2). CEN EN*ISO*2060 95 m 3404589 0304250 TB4 4.2.2 Option 5: m
43、ass of the scoured oven-dry yarn (see 11.4.3). 4.2.3 Option 6: mass of the scoured oven-dry yarn, plus the commercial moisture regain (see 11.4.4). 4.2.4 Option 7: mass of the scoured oven-dry yarn, plus the commercial allowances (see 11.4.5). NOTE 2 The use of Option 1, 3 or 7 is recommended. 5 App
44、aratus 5.1 Reel, having a perimeter such that the required length of yarn is given by a whole number of rev- olutions, and with a traversing device that will avoid bunching of the yarn during reeling. A perimeter of 1,000 m f 2,5 mm is recommended. The reel shall be either a) fitted with a positive
45、feed system at a controlled tension of 0,5 k 0,l cN/tex, or b) fitted with an adjustable tension device. In this case, the length of the skein may be checked by some suitable means (see annex A). Variations in the specified length of the perimeter shall be small enough that skeins prepared on the re
46、el conform with the specifications given in annex A. NOTE 3 may be used if mutually agreed by the interested parties. Existing reels with perimeters other than 1 m 5.2 Ventilated drying oven, in which the yarn specimens are exposed at a temperature maintained at 105 “C f 3 “C. The specimens shall no
47、t be subject to direct radiation from the heating units. The oven shall be supplied with a current of predried air (less than 0,Ol g of water per 1 O00 i) at such a rate that the volume of air in the oven will be renewed at least once every 4 min. Alternatively, by agreement of all interested partie
48、s, the oven may be supplied with air at any specified temperature and relative humidity (R.H.). The oven shall be designed to facilitate the free passage of air through the specimens. The oven may be provided with facilities for cutting off the air current and weighing the specimens without their re
49、moval from the oven. NOTE 4 Air under standard temperature conditions (65 % R.H. at 20 “C) has a moisture vapour pressure of 1 51 5 Pa. If the temperature of this air is raised to 105 OC, the air will have a relative humidity of 1,25 %. Under these conditions, samples of textiles with a high moisture regain, such as regenerated cellulose or wool, may retain up to 0,5 % moisture. Accurate results can be secured only by Page 6 EN IS0 2060 : 1995 suppling predried air to the oven. However, results of equal precision (but at somewhat lower levels of observed mo
