1、BRITISH STANDARD BS EN ISO 5080:1999 Sisal agricultural twines The European Standard EN ISO 5080:1999 has the status of a British Standard ICS 59.080.50BSEN ISO 5080:1999 This British Standard, having been prepared under the directionof the Sector Committeefor Materials andChemicals, was publishedun
2、derthe authorityofthe Standards Committee andcomes into effect on 15 October1999 BSI 04-2000 ISBN 0 580 35228 5 National foreword This British Standard is the English language version of EN ISO5080:1999. It is identical with ISO5080:1994. It supersedes BS EN25080:1993 which is withdrawn. The UK part
3、icipation in its preparation was entrusted to Technical Committee TCI/77, Ropes, cordage and fishing nets, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change,
4、and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards
5、 normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “Interna
6、tional Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. 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 Br
7、itish 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, theEN ISO title page, page 2, the ISO title page, pages ii to iv, pages1 to4 anda back cover. This standard has been updated (see cop
8、yright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No. Date CommentsBSEN ISO 5080:1999 BSI 04-2000 i Contents Page National foreword Inside front cover Foreword 2 Foreword iii Text o
9、f ISO 5080 1ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO5080 July1999 ICS59.080.50 Supersedes EN25080:1993 English version Sisal agricultural twines (ISO 5080:1994) Ficelles agricoles en sisal (ISO5080:1994) Sisal-Emtegame (ISO 5080:1994) This European Standard was approved by CE
10、N on18 April1999. CEN members are bound to comply with the CEN/CENELEC Internal Regulations 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 ma
11、y 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 the responsibility of a CEN member into its own language and notified to the Cen
12、tral Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdo
13、m. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1999 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 5080:1999
14、 EENISO 5080:1999 BSI 04-2000 2 Foreword The text of the International Standard from Technical Committee ISO/TC38 “Textiles” of the International Organization for Standardization (ISO) has been taken over as an European Standard by Technical Committee CEN/TC 248 “Textiles and textile products”, the
15、secretariat of which is held by BSI. This European Standard replaces EN25080:1994. 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 January2000, and conflicting national standards shall be withdraw
16、n at the latest by January2000. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxem
17、bourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the UnitedKingdom. Endorsement notice The text of the International Standard ISO5080:1994 has been approved by CEN as a European Standard without any modification.EN ISO 5080:1999 ii BSI 04-2000 Contents Page Foreword iii 1 Scope 1
18、 2 Normative references 1 3 Definitions 1 4 Designation 1 5 Manufacture 1 6 Technical properties 1 7 Sampling 1 8 Test methods 2 9 Commercial presentation 4 10 Marking 4 11 Make-up of batches for sale 4 Table 1 Technical properties of sisal agricultural twines 2 Descriptors: Textiles, cordages, sisa
19、l, twine, specifications, tests, marking, commercial presentation, agriculture.EN ISO 5080:1999 BSI 04-2000 iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards
20、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 ISO, also take pa
21、rt in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Stan
22、dard requires approval by at least75% of the member bodies casting a vote. International Standard ISO5080 was prepared by Technical Committee ISO/TC38, Textiles. This second edition cancels and replaces the first edition (ISO5080:1977), clause10 of which has been technically revised.iv blankEN ISO 5
23、080:1999 BSI 04-2000 1 1 Scope This International Standard establishes the principal properties of sisal agricultural twines, prescribes methods of test permitting their verification and specifies the form of commercial presentation for the twines. 2 Normative references The following standards cont
24、ain 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 parties to agreements based on this International Standard are encouraged to investiga
25、te 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. ISO 2:1973, Textiles Designation of the direction of twist in yarns and related products. ISO 1968:1973, Ropes and cordage V
26、ocabulary. ISO 3534-1:1993, Statistics Vocabulary and symbols Part 1: Probability and general statistical terms. 3 Definitions For the purposes of this International Standard, the definitions given in ISO1968 and ISO3534-1 and the following definitions apply. 3.1 agricultural twine monofilament twin
27、e intended for use in agriculture, notably for binding the bundles on automatic pick-up balers or the sheaves on reaping and binding machines or on similar machines 3.2 batch definite quantity of twine produced under conditions which are presumed uniform 3.3 laboratory sample total selection of samp
28、les from a batch intended for the laboratory for testing 3.4 specimen quantity of twine on which a test in accordance with this International Standard is carried out 4 Designation A twine conforming to this International Standard is designated by the term “sisal agricultural twine”, followed by its
29、code number. EXAMPLE A sisal agricultural twine having a length of300m per kilogram of mass is designated as follows: Sisal agricultural twine No. 300 5 Manufacture The fibre used for the manufacture of the twine shall consist of new genuine fibre of long staple; it shall be unadulterated, free from
30、 defects and true to form as sisal (Agave sisalana). Each spool of twine shall be capable of working with continuity throughout its length. The twine shall have a Z twist, as defined in ISO2. For the purpose of dressing the fibre, a lubricant shall be added. 6 Technical properties The technical prop
31、erties of the twines and the methods to be used for their measurement are indicated inTable 1, which also indicates the application of the twines. When the indicated values are neither maxima nor minima, the tolerances indicated inTable 1 apply. 7 Sampling 7.1 Number of spools in a laboratory sample
32、 Each 100 t or part thereof in a consignment of twine of the same code number shall represent a batch for testing, to which the following sampling formula applies: S = 0,25 where 7.2 Selection of sample For each batch, the laboratory sample is made up as follows. Select at random the required number
33、 of spools, each taken from a different bale of the batch. S is the number of spools sampled (when S as calculated is not a whole number, round off the value obtained to give a whole number); N is the number of spools in a batch of 100 t or less. NEN ISO 5080:1999 2 BSI 04-2000 Table 1 Technical pro
34、perties of sisal agricultural twines 8 Test methods 8.1 Determination of linear density and runnage 8.1.1 Principle Weighing, under specified conditions, specimens of specified length, then calculation of the linear density and the runnage (or length in metres per kilogram). 8.1.2 Apparatus 8.1.2.1
35、Balance, accurate to0,5 g. 8.1.2.2 Wrap-reel, of known perimeter. 8.1.3 Specimens 8.1.3.1 Selection Select30m of twine from each spool as follows. Directly from the centre of each spool, in an anti-clockwise direction, draw the first10 m of twine and discard them. Then draw30m of twine and wind them
36、 as adjacent turns (without overlapping) on the wrap-reel (8.1.2.2), exercising just sufficient tension on the twine to maintain straightness. Remove the twine from the wrap-reel. Each specimen of30m thus obtained constitutes a test piece. 8.1.3.2 Conditioning The tests shall be carried out in an am
37、bient atmosphere provided that the twine has been kept in conditions which do not damage its original properties. In case of dispute, leave the specimens for48h inastandard atmosphere for testing temperature20 C 2 C, relative humidity(65 2)%, before continuing with thetests. 8.1.4 Procedure Determin
38、e the mass m 1 , in grams, of each specimen by weighing on the balance (8.1.2.1) to the nearest0,5g. 8.1.5 Expression of results 8.1.5.1 Calculation of linear density For each specimen, calculate the linear density T, in tex, using the equation where m 1is the mass, in grams, of the specimen. Releva
39、nt property Units Designation of the twine a Test method given in No. 150 No. 200 No. 300 Values for the properties Runnage m/kg 150 12 200 16 300 24 8.1 Equivalent linear density tex 6667 5000 3333 Minimum breaking force daN 2) 98 69 40 8.2 Minimum extractable lubricant % (m/m) 13 13 13 8.3 Applica
40、tion High- and medium-density baling Low-density baling and binding a Although other sizes of twine are not recommended, any country which, for internal reasons, would have to include other twines in its national standard must record in its standard that these twines are not included in the Internat
41、ional Standard. In order to make sure that these twines have the same quality level as that of the twines in this International Standard, their specifications shall be calculated, as far as the minimum breaking force requirement is concerned, by means of the following equation: where R is the breaki
42、ng force, in decanewtons; n is the runnage of twine, in metres per kilogram. 2) The SI unit of force is the newton. A force of 1 decanewton (daN) 1,02kgf. +579 494 +435 370 +290 247 R 17 400 n -18 = T 1 000 m 1 30 - =EN ISO 5080:1999 BSI 04-2000 3 8.1.5.2 Calculation of runnage Calculate the runnage
43、 L, in metres per kilogram of twine, using the following formula: where T is the linear density, in tex. 8.1.5.3 Check test If a specimen is outside the tolerance given in Table 1, a check test shall be carried out on another spool. If the result of the check test is found to be within the limits of
44、 the permitted tolerances (seeTable 1), the result of the check test is adopted for the value of the linear density. 8.2 Determination of breaking force 8.2.1 Principle Measurement of the force (expressed in decanewtons) necessary to break, under known conditions, a specimen of specified length. 8.2
45、.2 Apparatus 8.2.2.1 Tensile testing machine, having a constant rate of traverse, with a mobile grip. This testing machine should comprise: 8.2.2.1.1 Two devices for gripping the ends of the test piece. 8.2.2.1.2 Device for maintaining the rate of traverse constant at500 mm/min 50 mm/min. 8.2.2.1.3
46、Device for indicating or recording continuously the force applied. 8.2.3 Specimens After determining the runnage, draw directly from the centre of each spool in an anti-clockwise direction, and without cutting the twine,10 specimens spaced5m from each other and of sufficient length so that once they
47、 are mounted in the testing machine, the free length of the specimen between the gripping devices is as close as possible to500mm. Each specimen shall be identified by reference to the spool from which it has been drawn. 8.2.4 Procedure 8.2.4.1 Check that the speed of movement of the moving grips of
48、 the machine is constant and equal to500mm/min 50mm/min. 8.2.4.2 Before mounting the test piece between the grips, check that the axes of the latter are as close as possible to500mm apart. 8.2.4.3 Mount the specimen in the machine so that it coincides with the axis of pull, taking care to avoid loss
49、 of twist other than that inevitably lost in drawing out the twine. 8.2.4.4 Start the machine, apply the force continuously until the specimen breaks, and record this force, in decanewtons. If a specimen breaks in the grips, or as a result of damage caused by them, remove it and start the test again with a new specimen. 8.2.5 Expression of results For the breaking force test, take into consideration only the results obtained when the break occurs between the grips of the testing machine. I
