ISO/FDIS 1130

ISO/DISFDIS 1130:2025(en)
ISO/TC 38/SC 23
Secretariat: SAC
Date: 2025-08-3010-27
Textiles — Sampling methods for fibres, yarns and fabrics for testing
FDIS stage
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ii © ISO #### 2025 – All rights reserved
ii
ISO/DISFDIS 1130:2025(en)
Contents
Foreword . v
Introduction . vii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Sampling fibres . 2
5 Sampling fibres from processed materials, yarns and fabrics . 8
6 Sampling of yarns . 14
7 Sampling of fabrics . 15
8 Test report . 16
Annex A (informative) Determination of number of tests for fibres. 18
Bibliography . 23

Foreword . v
Introduction . vii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 General Terms and definitions . 1
3.2 Terms and definitions for bast fibres . 2
4 Sampling fibres . 2
4.1 Sampling methods for bast fibres . 2
4.1.1 General . 3
4.1.2 Sampling the bulk . 3
4.1.3 Method A . 3
4.1.4 Method B . 3
4.2 Sampling methods for cotton fibres . 3
4.2.1 General . 3
4.2.2 Sampling from a small bulk of raw or blended cotton . 3
4.2.3 Sampling from a bulk consisting of a bale of cotton . 3
4.2.4 Sampling from a bulk consisting of several bales of cotton . 4
4.2.5 Preparation of laboratory test samples . 5
4.3 Sampling method for man-made staple fibres . 5
4.3.1 General . 5
4.3.2 Number of bales to be sampled . 5
4.3.3 Preparation of final sample representative of the consignment . 5
4.3.4 Sampling without opening bales . 6
4.3.5 Number of bales to be sampled . 6
4.4 Sampling methods for wool fibres . 6
4.4.1 General . 6
4.4.2 Sampling method for loose fibres -- Method of zoning . 6
5 Sampling fibres from processed materials, yarns and fabrics . 8
5.1 Sampling fibres from sliver or roving . 8
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5.1.1 General . 8
5.1.2 Cut square method . 8
5.1.3 Random draw method . 9
5.2 Sampling fibres from yarns . 11
5.2.1 General . 11
5.2.2 Sampling from a bulk consisting of yarns – Cut square method . 11
5.3 Sampling fibres from fabric . 12
6 Sampling of yarns . 12
6.1 General . 12
6.2 Procedure for shipments, consignments and lots . 12
6.3 Length of yarns on the package . 13
6.4 Sampling of yarns from beams . 13
6.5 Procedure during sampling and the number of specimens . 13
6.6 Sampling of yarns from fabrics . 13
7 Sampling of fabrics . 14
7.1 General . 14
7.2 Procedure for shipments, consignments and lots . 14
7.3 Procedure for sampling . 14
8 Test report . 15
Annex A (informative) Determination of number of tests for fibres . 16
Bibliography . 20

iv © ISO #### 2025 – All rights reserved
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ISO/DISFDIS 1130:2025(en)
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
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International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types of
ISO documents should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent rights
in respect thereof. As of the date of publication of this document, ISO had not received notice of (a) patent(s)
which may be required to implement this document. However, implementers are cautioned that this may not
represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents.www.iso.org/patents. ISO shall not be held responsible for identifying any or all such
patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 38, Textiles, Subcommittee SC 23, Fibres and
yarns.
This second edition cancels and replaces the first edition (ISO 1130:1975), which has been technically revised.
The main changes are as follows:
— — the title has been changed from “Textile fibres — Some methods of sampling for testing “” to “Textiles
— Sampling methods for fibres, yarns and fabrics for testing”;
— — This document has been updated in accordance with the editorial rules of the ISO/IEC Directives, Part
2 and subsequent clauses have been renumbered;
— — The Introduction has been updated according to the changed title and description of methods from the
scope has be moved in to introduction;
— — The Scope has been updated according to align with the changedchange in title;
— — The mandatory normative references clause (Clause 2)(2) has been added and subsequent clauses
have been renumbered;
— — In Subclause 3.1,3.1, some definitions have been updated according to ISO/IEC Directives, Part 2, 2021,
16;
— — “Sampling without opening bales” has been revised from Note to Subclause 4.2.4.2.3;4.2.4.2.3;
© ISO 2025 – All rights reserved
v
— — Subclauses 4.2.4.2.2,4.2.4.2.2, related to the sampling from a bulk consisting of several bales of cotton,
when the number of bales is not more than 10, have been added.
— — Subclauses 4.3.44.3.4 and 4.3.54.3.5 related to the sampling method for man-made staple fibres, have
been added;
— — Subclauses 5.1.25.1.2 related to the sampling fibres from slivers or rovings, have been added;
— — Sampling fibres from processed materials, yarns and fabrics has been revised as an individual clause;
— — Clauses about Sampling of yarns, sampling of fabrics and test report have been added;
— — Figure 10 has been added;
— — The Bibliography has been added.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.htmlwww.iso.org/members.html.
vi © ISO #### 2025 – All rights reserved
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ISO/DISFDIS 1130:2025(en)
Introduction
No single technique of sampling of fibres, yarns and fabrics can be devised that will serve in all circumstances.
Sampling from a bale of cotton, for example, presents problems quite different from those encountered in
sampling from a consignment of yarn packages, while sampling from a card web is again different from either.
If the fibres in the bulk have been well mixed, so that there is no variation in composition from one part to
another, i.e. the individual fibres are distributed at random, the sample can, without disadvantage, be taken
from one place anywhere in the bulk.
If the fibres in the bulk are not known to have been well mixed, so that the composition maycan vary from one
part to another, a sample taken from any one place would not be representative of the whole bulk.
The samples are generally taken as the shipping units making up a lot; such as bales of fibre, cases of yarn,
rolls of fabric, or cartons of garments or other finished products. Adequate sampling for acceptance testing
requires taking into account not only the variability between the laboratory samples but also the variability
between the laboratory test samples and between the test specimens.
The objective of sampling maycan vary with the purpose for which the test method is used. The objective of
sampling for acceptance testing is to obtain material which will estimate, without bias, a property of the lot
being evaluated- and which allows making a decision on whether to accept or reject a lot with reasonable
procedures and consumers risks when the acceptable quality level and the limiting quality level are at realistic
levels. There are normally many ways to estimate the property of interest to specified degree of precision. The
most economical way to do so will depend on the relative size of the sources of variability associated with
sampling the laboratory samples.
A selection of methods is therefore presented, illustrating techniques that have been found acceptable in
meeting the commonermost common types of problem encountered in sampling for the assessment of fibre
quality. Methods peculiar to the requirements of research are not included, nor are such special techniques as
have to be used, for example, in sampling of wool from the fleece, or cotton from the seed.
Although in this document, the principle of several methods for preparing laboratory samples of fibres, yarns
and fabrics is described, it is not possible for the coverage of each individual procedure for each method to be
fully comprehensive; in many instances, the selection of laboratory test samples or test specimens is
necessarily covered by the appropriate method of test.
© ISO 2025 – All rights reserved
vii
DRAFT International Standard ISO/DIS 1130:2025(en)

Textiles - — Sampling methods for fibres, yarns and fabrics for testing
1 Scope
This document specifies several methods for preparing laboratory samples of fibres, yarns and fabrics and
presents a limited treatment of the problem of drawing specimens for testing.
The selection of length-biased samples is not within the scope of this document, nor are. It does not cover
particular procedures for the determination of commercial weights or moisture content.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— — ISO Online browsing platform: available at https://www.iso.org/obphttps://www.iso.org/obp
— — IEC Electropedia: available at https://www.electropedia.org/https://www.electropedia.org/
3.1 General terms and definitions
3.1.1
individual
any single fibre, yarn or fabric that can be taken for the purpose of measurement
3.1.2
population
aggregate of individuals (3.1.1)(Error! Reference source not found.) that it is desired to characterize in one
or more particulars
EXAMPLE Fibres contained in a bale of cotton; all the constituent fibres in a set of yarn cops
3.1.3
zoning, verb
operation where individuals or groups of individuals (3.1.1)(Error! Reference source not found.) in the
population (3.1.2)(Error! Reference source not found.) are taken at random from within the different parts
or zones
Note 1 to entry: This is performed when the population to be sampled is known to vary from part to part with respect
to the property to be investigated. The samples are chosen so that all variations of the property are represented in due
proportion.
3.1.4
laboratory sample
sample intended to be representative of a large bulk of material, in the state in which it is sent to the laboratory
Note 1 to entry: A convenient size of laboratory sample for many types of test involving only small test specimens is
about 25 g to 50 g; a larger amount will be required for tests involving relatively large test specimens.
3.1.5
laboratory test sample
portion of fibres, yarns or fabrics taken from the laboratory sample (3.1.4),(Error! Reference source not
found.), in such a way as to ensure its representative character and, to provide a quantity small enough to be
easily convertible into test specimens (3.1.6)(Error! Reference source not found.)
3.1.6
test specimen
part of the laboratory test sample (3.1.5),(Error! Reference source not found.), (fibres, yarns, or fabrics)
which is tested at one time
3.1.7
numerical sample
sample in which all fibres in the population (3.1.2)(Error! Reference source not found.) have an equal
chance of being represented
3.1.8
length-biased sample
sample in which the chance of any fibre of the population (3.1.2)(Error! Reference source not found.) being
represented is proportional to the length of that fibre
3.2 Terms and definitions for bast fibres
3.2.1
reed
fibrous strands obtained from a jute stem after retting
3.2.2
head
bunch of jute reeds, given a twist and folded over before being made into a bale
3.2.3
bunch
aggregate of pieces of flax tied up with two or more ties preparatory to baling
3.2.4
strick
small bunch of flax straws, or scutched flax, or of hackled flax, of a size that can be held in the hand, or a bunch
of jute similar to a head, but smaller, usually 1 kg to 2 kg in mass
4 Sampling fibres
4.1 Sampling methods for bast fibres
NOTE Bast fibres which are required to be broken in the preliminary stages of processing, and consequently
sampling for fibre length measurement, are carried out on sliver or yarn, and not on the raw fibre.
4.1.1 General
Raw bast fibres are usually sampled only for determination of fibre fineness and fibre strength, and the
methods adopted depend on the type of bast fibre. Flax and hemp need different handling from jute and kenaf.
Method A applies to bales or other bulks of bast fibres such as flax and hemp in the raw state and to bulks of
dressed line in bunches.
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ISO/DISFDIS 1130:2025(en)
Method B applies to bales or bulks of jute or kenaf in the raw state.
4.1.2 Sampling the bulk
Take a representative sample by abstracting small sub-samples from various parts of the bulk and reduce each
of these to a convenient number of fibres by repeated halving.
4.1.3 Method A
Select a number of bunches (preferably not less than twenty) at random from various parts of the bale or bulk,
and remove a strick of fibre from each one. Divide each strick lengthwise by gripping the centre and pulling
transversely to the length of the fibres to separate the two portions. Discard one portion and retain the identity
of the root and tip of the retained portion. Repeatedly halve the retained portion until the amount of fibre
retained is sufficiently small. Make a composite sample for test purposes by combining the retained fibre from
each strick, placing root ends together and tip ends together.
4.1.4 Method B
Take a number of heads of jute (preferably not less than fifty) at random from the bulk, and remove a reed
from each head. Cut each of these reeds into root end, middle, and tip end, keeping the sections separate and
the corresponding cut lengths from all reeds bundled together. Then tease out each of the three composite
bundles by hackling on pins, or by other means, to remove cross-linked and tangled fibres.
For determinations of fibre fineness and single fibre breaking load, cut small bundles of fibres, each weighing
a few milligrams and of fixed length (30 mm is suitable), from a composite bundle at a number of points and
put them together to form a test sample (25 mg is often a convenient mass).
4.2 Sampling methods for cotton fibres
4.2.1 General
Subclause 4.24.2 gives methods for the preparation of numerical laboratory samples.
The methods described in 4.2.2 to 4.2.54.2.2 to 4.2.5 are applicable to bulks of cotton fibres in various forms.
4.2.2 Sampling from a small bulk of raw or blended cotton
If the bulk consists of less than 5 kg of loose raw cotton, it shall be spread out in an even layer. Unless otherwise
stated, obtain the laboratory sample by selecting at random a minimum of 100 tufts, each of 0,25 g to 0,50 g.
If the bulk is greater than 5 kg, divide it into a number of equal portions, and take an equal number of tufts (of
0,25 g to 0,50 g each) from each portion such that the total number from all portions exceeds 100.
4.2.3 Sampling from a bulk consisting of a bale of cotton
4.2.3.1 General
There is variation in most fibre properties between and within layers of the same bale of cotton. The values of
coefficients of within- and between-layer variation and of the ratio of these coefficients of variation vary
according to the fibre characteristics under consideration, and also with the type of cotton.
4.2.3.2 Procedure
If the bale is open, a suitable laboratory sample may be obtained by selecting 10 tufts at random throughout
each of 10 equally spaced layers.
© ISO 2025 – All rights reserved
If the bale has not been opened, the above procedure cannot be followed. In this case, the following procedure
may be feasible.
Extract the required number of tufts by removing cotton from one or more of the edges that are perpendicular
to the layers in the bale, so that the sample includes material from many layers. In taking the tufts, reject any
soiled cotton from the outside of the bale (the procedure may be facilitated by cutting one of the end bands
round the bale).
NOTE A less satisfactory sample is yielded by selecting tufts from various places over the upper and lower sides of
a bale.
Although this cotton is easily accessible, any laboratory sample obtained in this manner will represent at the
most two layers, one on each side of the bale.
4.2.4 Sampling from a bulk consisting of several bales of cotton
4.2.4.1 General
The detailed method of sampling depends on the type of test to be carried out, the number of bales, and the
likely variation between the bales.
4.2.4.2 Procedure
The following procedure shall be used unless the specification states otherwise.
4.2.4.2.1 4.2.4.2.1 When the number of bales is greater than 10 and the real variation in the bulk
is not appreciably greater than the precision required in the test result, Makemake a random choice of 10 %
of the bales (or 10 bales if 10 % of the bulk is less than ten bales); then from the selected bales take a minimum
of 100 tufts, taking an equal number of tufts from each layer of each bale.
4.2.4.2.2 4.2.4.2.2 When the number of bales is not more than 10, select a minimum of 100 tufts;
take an equal number of tufts from each layer of each bale.
4.2.4.2.3 4.2.4.2.3 Sampling without opening bales
For most commercial purposes, when selecting a sample from a bale of cotton, it is impracticable to obtain a
representative sample by opening a bale and following the procedure described in 4.2.2.4.2.2. Samples
prepared by selecting cotton from one or two layers in a bale are acceptable for many purposes of quality
classification, and for some forms of testing (for example, determination of micronaire value) when past
experience indicates that the feature under consideration varies appreciably more from bale to bale in a
commercial lot than between layers in the same bale. Under such circumstances, it is recommended that a
sample be prepared in the form of two clumps of cotton, similar in surface area and mass, taken from opposite
outer layers of the bale and with the distance to the edges of the bale a minimum of 100 mm. The face of the
sample should be not less than 120 mm × 150 mm and the total mass not less than 150 g. A sample consisting
of a clump, of the same surface area and total mass, cut from one outer layer only, is less representative and
fulfil the requirements of this document only if mutually agreed by the parties concerned.
4.2.5 Preparation of laboratory test samples
4.2.5.1 General
In certain cases, it may be necessary to have a laboratory test sample, prepared from the laboratory sample.
These laboratory test samples shall be prepared by a method which takes into consideration the test to be
performed and the degree of accuracy desired.
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ISO/DISFDIS 1130:2025(en)
In general, fibre blending by a mechanical blender is preferable, particularly when the test specimen is small
in size, as is the case in the flat-bundle strength test. However, in some cases, samples prepared by hand are
adequate.
When the laboratory sample consists of tufts taken by cutting into the bales, cut fibres shall not be included in
the laboratory test sample.
4.2.5.2 Mechanical blending (preferred method)
The mechanical blender is designed to use a certain mass of fibres, for example up to 10 g.
Spread out the laboratory sample so that pinches can be taken from it at any point. Take small pinches of fibre
from at least 32 different evenly spaced points in the laboratory sample.
Perform a light drafting action on the pinches before feeding them into the mechanical blender, so as to form
as uniform a sheet of fibre as possible. Blend the fibres using the blender so as to produce a practically
homogeneous sample, taking care not to damage the fibres.
4.2.5.3 Manual methods
Different methods have been described in national standards. They are designed for different methods of test,
for example “cut-squaring”, making hand slivers and making small samples for successive halving and
combining. In some cases, it is preferable to prepare test specimens direct from the laboratory sample.
4.3 Sampling method for man-made staple fibres
4.3.1 General
This method gives a numerical sample. It is suitable for most types of man-made fibres in bale form. Unusual
consignments of staple fibre and supplies of staple produced from filament waste may require a modified
sampling procedure.
4.3.2 Number of bales to be sampled
If the consignment comprises not more than 5 bales, sample all the bales. If the consignment comprises more
than 5 but not more than 25 bales, take 5 bales at random. If there are more than 25 bales in the consignment,
take 10 bales at random.
4.3.3 Preparation of final sample representative of the consignment
From each bale to be sampled take four handfuls each of about
...