Bsi bs en 25077 1994 (1999)

www bzfxw com BRITISH STANDARD BS EN 25077 1994 ISO 5077 1984 Textiles — Determination of dimensional change in washing and drying The European Standard EN 25077 1993 has the status of a British Stand[.]

BRITISH STANDARD BS EN

25077:1994 ISO 5077:1984

Textiles —

Determination of

dimensional change in

washing and drying

The European Standard EN 25077:1993 has the status of a

British Standard

UDC 677.017.635:648.23 + 648.33

This British Standard, having

been prepared under the

direction of the Textiles and

Clothing Standards Policy

Committee, was published

under the authority of the

Standards Board and

comes into effect on

15 February 1994

© BSI 08-1999

The following BSI references

relate to the work on this

standard:

Committee reference TCM/25

Special announcement in

BSI News April 1993

ISBN 0 580 21829 5

Cooperating organizations

The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following countries:

Austria Oesterreichisches Normungsinstitut Belgium Institut belge de normalisation Denmark Dansk Standardiseringsraad Finland Suomen Standardisoimisliito, r.y

France Association française de normalisation Germany Deutsches Institut für Normung e.V

Greece Hellenic Organization for Standardization Iceland Technological Institute of Iceland

Ireland National Standards Authority of Ireland Italy Ente Nazionale Italiano di Unificazione Luxembourg Inspection du Travail et des Mines Netherlands Nederlands Normalisatie-instituut Norway Norges Standardiseringsforbund Portugal Instituto Portuguès da Qualidade Spain Asociación Española de Normalización y Certificación Sweden Standardiseringskommissionen i Sverige

Switzerland Association suisse de normalisation United Kingdom British Standards Institution

Amendments issued since publication

Amd No Date Comments

BS EN 25077:1994

Contents

Page Cooperating organizations Inside front cover

Annex Confidence limits of the mean 5 Annex ZA (normative) Normative references to international

publications with their relevant European publications 5 National annex NA (informative) Committees responsible Inside back cover National annex NB (informative) Cross-references Inside back cover

ii © BSI 08-1999

National foreword

This British Standard has been prepared under the direction of the Textiles and Clothing Standards Policy Committee It is the English language version of

EN 25077:1993 Textiles — Determination of dimensional change in washing and

drying published by the European Committee for Standardization and is identical with ISO 5077:1984 This standard supersedes BS 5807:1987 which is withdrawn and which was also identical with ISO 5077:1984

As a consequence of implementing the European Standard this British Standard

is renumbered as BS EN 25077

This edition makes no technical changes to the standard

EN 25077:1993 has been approved by CEN member bodies under the Unique Acceptance Procedure

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 British Standard does not of itself confer immunity from legal obligations.

Summary of pages

This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 6, an inside back cover and a back cover

This standard has been updated (see copyright date) and may have had amendments incorporated This will be indicated in the amendment table on the inside front cover

EUROPEAN STANDARD

NORME EUROPÉENNE

EUROPÄISCHE NORM

EN 25077 November 1993

UDC 677.017.635:648.23 + 648.33

Descriptors: Textiles, fabrics, garment, washing, drying, tests, dimensional stability tests

English version

Textiles — Determination of dimensional change in

washing and drying

(ISO 5077:1984)

Textiles — Détermination des variations

dimensionnelles au lavage et au séchage

domestiques

(ISO 5077:1984)

Textilien — Bestimmung der Maßänderung beim Waschen und Trocknen

(ISO 5077:1984)

This European Standard was approved by CEN on 1993-11-25 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,

Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,

Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and

United Kingdom

CEN

European Committee for Standardization Comité Européen de Normalisation Europäisches Komitee für Normung

Central Secretariat: rue de Stassart 36, B-1050 Brussels

© 1993 Copyright reserved to CEN members

Ref No EN 25077:1993 E

© BSI 08-1999 2

Foreword

This European Standard has been taken over by

CEN/TC 248, Textiles and textile products, from the

work of ISO/TC 38, Textiles, of the International

Organization for Standardization (ISO)

This document was submitted to the Unique

Acceptance Procedure (UAP) and was approved

without any modification

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

May 1994, and conflicting national standards shall

be withdrawn at the latest by May 1994

In accordance with the CEN/CENELEC 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, Portugal, Spain, Sweden,

Switzerland and United Kingdom

NOTE Normative references to international publications are

listed in Annex ZA (normative).

EN 25077:1993

1 Scope and field of application

This International Standard specifies a method for determination of the dimensional change of fabrics,

garments or other textile articles when subjected to an appropriate combination of specified washing and drying procedures

In the case of textile articles or deformable materials, it is necessary to exercise all possible caution in the interpretation of the results

2 References

ISO 139, Textiles — Standard atmospheres for conditioning and testing

ISO 3759, Textiles — Preparation, marking and measuring of fabric specimens and garments in tests for

determination of dimensional change

ISO 6330, Textiles — Domestic washing and drying procedures

3 Principle

The specimen is conditioned in the specified standard atmosphere and measured before subjection to the appropriate washing and drying procedures After drying, conditioning and remeasuring of the specimen, the changes in dimensions are calculated

4 Apparatus and reagents

As specified in ISO 3759 and in ISO 6330

5 Atmospheric conditions

The atmospheric conditions required for pre-conditioning and testing are specified in ISO 139

6 Test specimens

6.1 The selection, dimensions, marking and measuring of test specimens are specified in ISO 3759

6.2 The number of specimens to be tested is determined by the precision of the results required In this test method, it is suggested that four specimens of each sample be tested and that these specimens be washed

in two separate wash loads with two specimens per wash load (replicates per run) See the Annex

6.3 In certain circumstances, it may be desirable not to test four specimens, and fewer specimens may be used

7 Procedure

7.1 Determine the original length and width dimensions, as appropriate, after the specimens have been

pre-conditioned, conditioned and measured according to the procedure specified in ISO 3759

7.2 Wash and dry the specimens according to one of the procedures specified in ISO 6330, as agreed

between the interested parties

7.3 After washing and drying, condition and measure the specimens and calculate the dimensional change

of the specimens according to the procedure specified in ISO 3759

8 Expression of results

8.1 Calculate the mean changes in dimensions in both the length and width directions in accordance with the arrangement in ISO 3759 as follows:

8.2 Express the average dimensional changes to the nearest 0,5 %

Percentage

change in

length

Percentage

change in

width

Final length Original length–

Original length - 100×

=

= Final width Original width–

Original width - 100×

8.3 State whether the dimension has decreased (shrinkage) by means of a minus sign (–) or increased

(extension) by means of a plus sign (+)

9 Test report

The test report shall include the following particulars:

a) a statement that the methods adopted for preparation, marking and measuring were in accordance

with this International Standard, and details of any additional measurements made;

b) information on the test method used, including details of the washing, water removal and drying

procedure, pressing, or other finishing procedure employed, unless this information can be given by a

reference to an International Standard;

c) the number of specimens washed and dried;

d) for fabric specimens, the average dimensional change in the length (warp or wale) and the average

dimensional change in the width (weft or course);

e) for garments, the description, make and size of the garment tested;

f) for garments, an adequate description of each measuring position and the dimensional change at each

position for each garment tested

EN 25077:1993

Annex Confidence limits of the mean

(Applicable to fabrics only)

The following table gives estimates of 95 % confidence limits of the mean which can be expected in the mean results of linear percentage dimensional change, when the number of runs and replicates per run vary

Annex ZA (normative)

Normative references to international publications with their relevant

European publications

This European Standard incorporates by dated or undated reference, provisions from other publications These normative references are cited at the appropriate places in the text and the publications are listed hereafter For dated references, subsequent amendments to or revisions of any of these publications apply

to this European Standard only when incorporated in it by amendment or revision For undated references the latest edition of the publication referred to applies (including amendments)

Number of

runs Number of replicates per run

1 2 3 4 5 10

1

2

3

4

5

10

± 1,68

± 1,19

± 0,97

± 0,84

± 0,75

± 0,53

± 1,24

± 0,87

± 0,71

± 0,62

± 0,55

± 0,39

± 1,05

± 0,74

± 0,61

± 0,53

± 0,47

± 0,33

± 0,94

± 0,67

± 0,54

± 0,47

± 0,42

± 0,30

± 0,87

± 0,62

± 0,50

± 0,44

± 0,39

± 0,28

± 0,71

± 0,50

± 0,41

± 0,36

± 0,32

± 0,22 NOTE 1 This table has been worked out from an interlaboratory trial conducted on behalf of ISO/TC 38/SC 2/WG 3

in 1973-1974 The wash programmes used in this trial differed somewhat from the programmes in the test method

specified in this International Standard The confidence limits applicable to this test method may lie somewhat closer

together than suggested by the above table, but this can only be determined by another interlaboratory trial.

NOTE 2 When the dimensional change of a fabric is greater than approximately 5 % the confidence limits given in the

above table may no longer be valid.

Publication Year Title EN/HD Year

ISO 139 — Textiles — Standard atmospheres for conditioning

ISO 3759 — Textiles — Preparation, marking and measuring of

fabric specimens and garments in tests for determination of dimensional change

ISO 6330 — Textiles — Domestic washing and drying

procedures for textile testing EN 26330 —

6 blank

EN 25077:1993

National annex NA (informative)

Committees responsible

The United Kingdom participation in the preparation of this European Standard was entrusted by the

Textile and Clothing Standards Policy Committee (TCM/–) to Technical Committee TCM/25 upon which the following bodies were represented:

Association of Consulting Scientists

Association of Manufacturers of Domestic Electrical Appliances

Association of Suppliers to the Furniture Industry Ltd

British Retail Consortium

British Textile Confederation

Chemical Industries Association

Confederation of British Wool Textiles Limited

Home Laundering Consultative Council

International Wool Secretariat

Lambeg Industrial Research Association

Mail Order Traders’ Association

Ministry of Defence

National Wool Textile Export Corporation

Soap and Detergent Industry Association

Society of Dyers and Colourists

Textile Finishers’ Association

Textile Research Council (FCRA)

National annex NB (informative)

Cross-references

Publication referred to Corresponding British Standard

ISO 139:1973 BS EN 20139:1992 Textiles — Standard atmospheres for conditioning and

testing

ISO 6330:1984 BS EN 26330:1993 Textiles — Domestic washing and drying procedures for

textile testing

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