EN ISO 4167:2006

SLOVENSKI STANDARD
01-maj-2006
Poliolefinske poljedelske povezne vrvice (ISO 4167:2006)
Polyolefin agricultural twines (ISO 4167:2006)
Polyolefin-Erntegarne (ISO 4167:2006)
Ficelles agricoles en polyoléfines (ISO 4167:2006)
Ta slovenski standard je istoveten z: EN ISO 4167:2006
ICS:
59.080.50 Vrvi Ropes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 4167
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2006
ICS 59.080.50 Supersedes EN 906:1996
English Version
Polyolefin agricultural twines (ISO 4167:2006)
Ficelles agricoles en polyoléfines (ISO 4167:2006) Polyolefin-Erntegarne (ISO 4167:2006)
This European Standard was approved by CEN on 27 February 2006.
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 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 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 Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,
Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
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© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4167:2006: E
worldwide for CEN national Members.

Foreword
This document (EN ISO 4167:2006) has been prepared by Technical Committee CEN/TC 248
"Textiles and textile products", the secretariat of which is held by BSI, in collaboration with
Technical Committee ISO/TC 38 "Textiles".

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 September 2006, and conflicting
national standards shall be withdrawn at the latest by September 2006.

This document supersedes EN 906:1996.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,
Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

INTERNATIONAL ISO
STANDARD 4167
Second edition
2006-03-01
Polyolefin agricultural twines
Ficelles agricoles en polyoléfines

Reference number
ISO 4167:2006(E)
©
ISO 2006
ISO 4167:2006(E)
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ii © ISO 2006 – All rights reserved

ISO 4167:2006(E)
Contents Page
Foreword. iv
1 Scope. 1
2 Normative references. 1
3 Terms and definitions. 1
4 Designation. 2
5 Raw materials. 2
6 Manufacture. 2
7 Technical properties. 2
8 Sampling. 4
9 Test method. 5
10 Form of delivery. 9
11 Marking. 10
12 Make up of batches for sale. 10
Annex A (informative) Recommendations for the care and handling of baler twine . 11

ISO 4167:2006(E)
Foreword
ISO (the 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 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. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. 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.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 4167 was prepared by the European Committee for Standardization (CEN) Technical Committee
CEN/TC 248, Textiles and textile products, in collaboration with Technical Committee ISO/TC 38, Textiles, in
accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 4167:1979), of which it constitutes a technical
revision.
iv © ISO 2006 – All rights reserved

INTERNATIONAL STANDARD ISO 4167:2006(E)

Polyolefin agricultural twines
1 Scope
This International Standard specifies the principal properties of polyolefin agricultural twines, the test methods
which permit their verification, and the form of delivery for the twines.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 2, Textiles — Designation of the direction of twist in yarns and related products
ISO 139, Textiles — Standard atmospheres for conditioning and testing
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
agricultural twine
simple yarn intended to be used in agriculture, notably for binding the bundles on automatic pick-up balers 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 samples from a batch intended for testing in the laboratory
3.4
polyolefin
principally polypropylene (PP) and high density polyethylene (PE)
3.5
specimen
quantity of twine on which a test conforming to the requirements of this International Standard is carried out
ISO 4167:2006(E)
4 Designation
A twine shall be designated by
⎯ the words “agricultural twine”,
⎯ the number of this International Standard, i.e. ISO 4167,
⎯ the material from which the agricultural twine is made, and
⎯ the nominal runnage in metres (m) per kilogram (kg) of the agricultural twine.
EXAMPLE Designation example:
A polypropylene (PP) agricultural twine having a nominal runnage of 350 m/kg is designated as follows:
agricultural twine ISO 4167 - PP - 350
5 Raw materials
The raw material used for the manufacture of twine shall consist of polyolefin. Adequate stabilization against
degradation by sunlight shall be incorporated.
Any ultraviolet (UV) inhibitor system as well as colour pigment may be used.
Used colour pigment and stabilizers should not be toxic.
NOTE Attention is drawn to the fact that in some areas of the world, a more stringent level of stabilization may be
necessary than in others.
The colour of the twine shall be distinguishable from straw and grass.
6 Manufacture
Each spool of twine shall be capable of working with continuity throughout its length. The twine shall have a Z
twist in accordance with ISO 2.
Twine should always be removed from the centre of a spool in an anti-clockwise direction.
7 Technical properties
The methods used for measuring the technical properties of the agricultural twine shall be as given in Table 1.
Table 2 shows indicative characteristics of some twines only; others shall be calculated in accordance with the
formulae in this clause and in 9.1.5.
In order to assure a minimum quality level, the following formulae are given for determining the technical
characteristics of the agricultural twines.
2 © ISO 2006 – All rights reserved

ISO 4167:2006(E)
For the minimum twine breaking force requirement, the following formula shall be used:
F =+ 8
twine
n
where
F is the minimum twine breaking force, in decanewtons rounded to the nearest integer;
twine
n is the specified nominal runnage of the twine, in metres per kilogram, in accordance with the
procedure given in 9.1.
For the minimum average knot breaking force requirement, the following formula shall be used:
F = 0,55 F
knot twine
where F is the minimum average knot breaking force, in decanewtons rounded to the nearest integer.
knot
For the nominal runnage tolerance requirement, a tolerance of ± 8 % rounded to the nearest integer shall be
allowed.
Table 1 — Technical properties of polyolefin agricultural twines
Values of properties
Method
Relevant property
Example: Agricultural twine
of test
ISO 4167 - PP - 350
+249
Linear density tex See 9.1.
–211
Runnage m/kg 350 ± 28 See 9.1.
1)
Minimum twine breaking force daN 98 See 9.2.
1)
Minimum average knot breaking force daN 54 See 9.3.

1)
The SI unit of force is the newton. A force of 1 decanewton (daN) corresponds to that exerted by a mass of 1,02 kg.

ISO 4167:2006(E)
Table 2 — Indicative characteristics of some twines
Minimum average
Minimum twine
Linear density, ρ
Runnage of the twine knot breaking
l
breaking force
force
Designation/
end use
F F
nominal, n
nominal tolerance tolerance
twine knot
tex tex m/kg m/kg daN daN
+ 103
Round bales 1 176 850 ± 68 45 25
− 87
+ 149
Round bales 1 724 580 62 34
± 46
− 127
+ 199
Conventional bales 2 326 430 ± 34 81 44
− 171
+ 249
Conventional bales 2 857 350 ± 28 98 54
− 211
+ 297
Conventional bales 3 448 290 ± 23 116 64
− 253
+ 579
Big bales 6 667 150 218 120
± 12
− 494
+ 641
Big bales 7 692 130 ± 10 250 137
− 549
8 Sampling
8.1 Number of spools in a laboratory sample
Each 50 t or part thereof in a consignment of twine of the same code number shall represent a batch for
testing using the following sampling formula:
S,=025N
where
S is the number of spools sampled, rounded to the nearest integer;
N is the number of spools in a batch of 50 t or less.
8.2 Selection
...