EN ISO 5080:1999

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Poljedelske povezne vrvice iz sisala (ISO 5080:1994)Sisal-Erntegarne (ISO 5080:1994)Ficelles agricoles en sisal (ISO 5080:1994)Sisal agricultural twines (ISO 5080:1994)59.080.50VrviRopesICS:Ta slovenski standard je istoveten z:EN ISO 5080:1999SIST EN ISO 5080:1999en01-november-1999SIST EN ISO 5080:1999SLOVENSKI
STANDARD
INTERNATIONAL STANDARD IS0 5080 Second edition 1994-11-15 Sisal agricultural twines Ficelles agricoles en sisal Reference number IS0 5080: 1994(E) SIST EN ISO 5080:1999

IS0 5080: 1994(E) Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 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 part in the work. IS0 collaborates closely with the International Electrotechnical Commission (I EC) 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 Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard IS0 5080 was prepared by Technical Committee lSO/TC 38, Textiles. This second edition cancels and replaces the first edition (IS0 5080:1977), I c ause 10 of which has been technically revised. 0 IS0 1994 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization Case Postale 56 l CH-1211 Geneve 20 l Switzerland Printed in Switzerland ii SIST EN ISO 5080:1999

INTERNATIONAL STANDARD 0 IS0 IS0 5080: 1994(E) Sisal agricultural twines 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 hlormative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publica- tion, the editions indicated 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 re- cent editions of the standards indicated below. Members of IEC and IS0 maintain registers of cur- rently valid International Standards. IS0 2: 1973, Textiles - Designation of the direction of twist in yarns and related products. IS0 1968:1973, Ropes and cordage - Vocabulary. IS0 3534-l :I 993, Statistics - Vocabulary and sym- bols - Part 7: Probability and general statistical terms. 3.1 agricultural twine: Monofilament twine in- tended 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 ma- chines. 3.2 batch: Definite quantity of twine produced under conditions which are presumed uniform. 3.3 laboratory sample: Total selection of samples 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”, fol- lowed by its code number. EXAMPLE A sisal agricultural twine having a length of 300 m per kilogram of mass is designated as follows: Sisal agricultural twine No. 300 5 Manufacture 3 Definitions For the purposes of this International Standard, the definitions given in IS0 1968 and IS0 3534-l and the following definitions apply. The fibre used for the manufacture of the twine shall consist of new genuine fibre of long staple; it shall be unadulterated, free from defects and true to form as sisal (Agave sisalana). 1 SIST EN ISO 5080:1999

IS0 5080: 1994(E) 0 IS0 Each spool of twine shall be capable of working with continuity throughout its length. The twine shall have a Z twist, as defined in IS0 2. For the purpose of dressing the fibre, a lubricant shall be added. 6 Technical properties The technical properties of the twines and the meth- ods to be used for their measurement are indicated in table 1, which also indicates the application of the twines. testing, to which the following sampling formula ap- plies: S = 0,25 fi where 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. When the indicated values are neither maxima nor minima, the tolerances indicated in table 1 apply. 7.2 Selection of sample 7 Sampling 7.1 Number of spools in a laboratory sample Each 100 t or part thereof in a consignment of twine Select at random the required number of spools, each of the same code number shall represent a batch for taken from a different bale of the batch. For each batch, the laboratory sample is made up as follows. Table 1 - Technical properties of sisal agricultural twines Designation of the twine’) Relevant property Units No. 150 No. 200 No. 300 Values for the properties Test method given in Runnage Equivalent linear density Minimum breaking force Minimum extractable lubricant Application m/kg tex daN*) % (mhn) 150 + - 12 200 + - 16 6 667 12;: 5 000 :;;g 98 69 13 13 High- and medium-density baling 300 + - 24 3 333 1;;; 40 13 Low-density baling and binding 8.1 8.2 8.3 1) 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 International 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: R 17 400 18 =---------- n where R is the breaking 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) z I,02 kgf. SIST EN ISO 5080:1999

0 IS0 8 Test methods IS0 5080: 1994(E) 8.1.5 Expression of results 8.1 Determination of linear density and runnage 8.1 .I Principle Weighing, under specified conditions, specimens of specified length, then calculation of the linear density and the runnage (or length in metres per kilogram). 8.1.5.1 Calculation of linear density For each specimen, calculate the linear density T, in tex, using the equation T= 1 000 m, 30 where ml is the mass, in grams, of the specimen. 8.1.5.2 Calculation of runnage 8.1.2 Apparatus 8.1.2.1 Balance, accurate to 0,5 g. 8.1.2.2 Wrap-reel, of known perimeter. Calculate the runnage L, in metres per kilogram of twine, using the following formula: IO6 L=T where T is the linear density, in tex. 8.1.3 Specimens 8.1.5.3 Check test 8.1.3.1 Selection Select 30 m of twine f
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