ISO/FDIS 6330

Textiles -- Domestic washing and drying procedures for textile testing

Textiles -- Méthodes de lavage et de séchage domestiques en vue des essais des textiles

General Information

• Status: Published
• ICS: 59.080.01 - Textiles in general
• Technical Committee: ISO/TC 38/SC 2 - Cleansing, finishing and water resistance tests
• Drafting Committee: ISO/TC 38/SC 2/WG 3 - Domestic washing and drying
• Current Stage: 5020 - FDIS ballot initiated: 2 months. Proof sent to secretariat
• Start Date: 17-Aug-2021
• Completion Date: 17-Aug-2021

RELATIONS

• Revised: ISO 6330:2012 - Textiles -- Domestic washing and drying procedures for textile testing
• Effective Date: 02-Jun-2018

Standards Content (sample)

FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 6330
ISO/TC 38/SC 2
Textiles — Domestic washing and
Secretariat: SAC
drying procedures for textile testing
Voting begins on:
2021­08­17
Textiles — Méthodes de lavage et de séchage domestiques en vue des
essais des textiles
Voting terminates on:
2021­10­12
ISO/CEN PARALLEL PROCESSING
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/FDIS 6330:2021(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN­
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. ISO 2021
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ISO/FDIS 6330:2021(E)
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© ISO 2021

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ii © ISO 2021 – All rights reserved
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ISO/FDIS 6330:2021(E)
Contents Page

Foreword ..........................................................................................................................................................................................................................................v

Introduction ................................................................................................................................................................................................................................vi

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Principle ........................................................................................................................................................................................................................ 2

5 Apparatus and materials.............................................................................................................................................................................. 3

5.1 Automatic washing machines .................................................................................................................................................... 3

5.1.1 Reference washing machine Type A — Horizontal axis, front-loading type ................ 3

5.1.2 Reference washing machine Type B — Vertical axis, top-loading agitator type ...... 3

5.1.3 Reference washing machine Type C — Vertical Axis, top-loading pulsator type ..... 3

5.2 Tumble dryers ......................................................................................................................................................................................... 3

5.2.1 Type A1 tumble dryer — Vented ....................................................................................................................... 3

5.2.2 Type A2 tumble dryer — Condenser .............................................................................................................. 3

5.2.3 Type A3 tumble dryer — Large vented ........................................................................................................ 3

5.3 Electrically (dry) heated flat-bed press ............................................................................................................................. 3

5.4 Line drying .................................................................................................................................................................................................. 3

5.5 Drying racks............................................................................................................................................................................................... 3

5.6 Ballasts ........................................................................................................................................................................................................... 3

5.6.1 Type I, 100 % cotton ballast................................................................................................................................... 3

5.6.2 Type II, 50 % cotton/50 % polyester ballast ........................................................................................... 3

5.6.3 Type III, 100 % polyester ballast ....................................................................................................................... 3

5.6.4 Other ballast ........................................................................................................................................................................ 4

6 Reagents ........................................................................................................................................................................................................................ 4

6.1 Reference detergents ......................................................................................................................................................................... 4

6.1.1 Reference detergent 1 ................................................................................................................................................. 4

6.1.2 Reference detergent 2 ................................................................................................................................................. 4

6.1.3 Reference detergent 3 ................................................................................................................................................. 4

6.1.4 Reference detergent 4 ................................................................................................................................................. 4

6.1.5 Reference detergent 5 ................................................................................................................................................. 4

6.1.6 Reference detergent 6 ................................................................................................................................................. 5

6.1.7 Reference detergent 7 ................................................................................................................................................. 5

6.2 Water ............................................................................................................................................................................................................... 5

6.2.1 Water hardness ................................................................................................................................................................. 5

6.2.2 Water pressure .................................................................................................................................................................. 5

6.2.3 Cold­water inlet temperature ............................................................................................................................... 5

7 Conditioning and testing atmosphere ............................................................................................................................................ 5

8 Wash load ..................................................................................................................................................................................................................... 5

8.1 Total wash load ....................................................................................................................................................................................... 5

8.2 Number of specimens ....................................................................................................................................................................... 5

8.3 Selection of ballast ............................................................................................................................................................................... 6

8.4 Ratio of load to ballast ...................................................................................................................................................................... 6

9 Washing procedure ............................................................................................................................................................................................ 6

10 Drying procedure ................................................................................................................................................................................................. 7

10.1 General ........................................................................................................................................................................................................... 7

10.2 Open-air dry .............................................................................................................................................................................................. 7

10.2.1 General...................................................................................................................................................................................... 7

10.2.2 Procedure A — Line dry ............................................................................................................................................ 7

10.2.3 Procedure B — Line drip dry ................................................................................................................................ 7

10.2.4 Procedure C — Flat dry .............................................................................................................................................. 7

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ISO/FDIS 6330:2021(E)

10.2.5 Procedure D — Flat drip dry ................................................................................................................................. 8

10.3 Procedure E — Flat press .............................................................................................................................................................. 8

10.4 Procedure F — Tumble dry .......................................................................................................................................................... 8

10.4.1 General...................................................................................................................................................................................... 8

10.4.2 Endpoint moisture content by setting time .............................................................................................. 8

10.4.3 Endpoint overdry state by setting time ........................................................................................................ 8

10.4.4 Endpoint moisture content by automatic tumble dryer sensing ........................................... 9

11 Domestic washing and drying procedure report ................................................................................................................ 9

Annex A (normative) Specification for reference washing machine Type A —

Horizontal axis, front-loading type ................................................................................................................................................10

Annex B (normative) Specification for wash procedures for reference washing machine Type A ..13

Annex C (normative) Specification for machines and procedures for reference washing

machine Type B — Vertical axis, top-loading agitator type ..................................................................................18

Annex D (normative) Specification for reference washing machine Type C — Vertical axis,

top-loading pulsator type .........................................................................................................................................................................19

Annex E (normative) Specification for washing procedures for reference washing machine

Type C ............................................................................................................................................................................................................................20

Annex F (normative) Specification for tumble dryers.....................................................................................................................21

Annex G (normative) Specifications for all ballast types used in washing ................................................................22

Annex H (normative) Nominal percentage composition for non-phosphate powder

reference detergent 1 ...................................................................................................................................................................................24

Annex I (normative) Nominal percentage composition for non-phosphate reference detergent 2 26

Annex J (normative) Nominal percentage composition for non-phosphate reference detergent 3 27

Annex K (normative) Nominal percentage composition for reference detergent 4 ........................................28

Annex L (normative) Nominal percentage composition for reference detergent 6 .........................................29

Annex M (normative) Nominal percentage composition for reference detergent 7 .......................................30

Annex N (normative) Distribution and mixing of reference detergent 2, 3, or 6 ................................................31

Annex O (normative) Determination of cycle drying time for tumble dryers with a timer device ..33

Bibliography .............................................................................................................................................................................................................................36

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ISO/FDIS 6330:2021(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.

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).

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. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/ patents).

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 2, Cleansing,

finishing and water resistance tests, in collaboration with the European Committee for Standardization

(CEN) Technical Committee CEN/TC 248, Textiles and textile products, in accordance with the Agreement

on technical cooperation between ISO and CEN (Vienna Agreement).

This fourth edition cancels and replaces the third edition (ISO 6330:2012), which has been technically

revised.
The main changes compared to the previous edition are as follows:
— a new terminology [wash load (3.11)] has been added for clarification;
— information on available detergents have been updated;
— information on ballasts have been clarified;
— acceptable devices have been updated;

— in Annex L, the reference detergent has been corrected as SDC reference detergent Type 4 (it was

incorrectly designated as IEC reference detergent A in ISO 6330:2000);
— annexes within the document have been harmonized.

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 .html.
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ISO/FDIS 6330:2021(E)
Introduction

This document is utilized by a broad range of textile quality and performance evaluations including

but not exclusive to: smoothness appearance, dimensional change, stain release, water resistance,

water repellence, colour fastness to domestic laundering, and care labelling that are prescribed in other

international and regional test method standards.

This document is also used to evaluate not only the attributes of fabrics themselves but also the

performance of apparel, home products and other textile end-products. The selection of washing

and drying machines and their associated ballast types, detergents, and other drying options are

determined according to the international region in which the textile will be used by consumers.

NOTE Suitable machines, detergents and ballast are available commercially. If you need this information,

please contact the ISO TC 38/SC 2 Secretariat.
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FINAL DRAFT INTERNATIONAL STANDARD ISO/FDIS 6330:2021(E)
Textiles — Domestic washing and drying procedures for
textile testing
1 Scope

1.1 This document specifies domestic washing and drying procedures for textile testing. The

procedures are applicable to textile fabrics, garments or other textile articles which are subjected to

appropriate combinations of domestic washing and drying procedures. This document also specifies the

reference detergents and ballasts for the procedures.
1.2 Provision is made for

a) 16 different washing procedures based on the use of the reference washing machine Type A:

horizontal axis, front-loading type,

b) 12 procedures based on the use of the reference washing machine Type B: vertical axis, top-loading

agitator type, and

c) 7 procedures based on the use of the reference washing machine Type C: vertical axis, top-loading

pulsator type.
1.3 Each washing procedure represents a single domestic wash.

1.4 This document also specifies six drying procedures: line dry, line drip dry, flat dry, flat drip dry, flat

press, and tumble dry.
1.5 A complete test consists of a washing and drying procedure.

NOTE Use of different parameters (washing machine type, detergent type and type of tumble dryer) can

affect test results for any test using this document.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements 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 139, Textiles — Standard atmospheres for conditioning and testing

ISO 6059, Water quality — Determination of the sum of calcium and magnesium — EDTA titrimetric

method
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
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ISO/FDIS 6330:2021(E)
3.1
ambient condition

temperature and relative humidity in the test environment not differing from the typical indoor

condition or the typical outdoor condition in the region where the test is performed

3.2
ballast

textile fabric to be added to the specimen(s) under test in order to fill the mass required by the washing

procedure
3.3
tumbler moisture sensor

control unit in a tumble dryer capable of measuring the humidity of the load and ending the drying

operation at a predetermined residual moisture level
3.4
overdrying

prolonged drying operation where the load is dried until all remaining moisture in the load has been

removed
3.5
reference detergent
detergent with specified formulations to be used for testing purposes
3.6
reference washing machine

washing machine with defined engineering specifications to be used for testing purposes

3.7
washing procedure

cycle of the washing action including water supplying, washing, and repeated rinsing, spinning (3.8)

and water supplying and ended by spinning as predetermined on the washing machine

3.8
spinning

water-extracting process in the washing machine by which water is removed from the textiles by

centrifugal action as a part of the washing procedure (3.7)
3.9
still air

air not influenced by any natural wind or mechanical device giving it a forced flow

3.10
total air-dry load mass

mass the specimen under test and the ballast in a conditioned state following ISO 139

3.11
wash load
material to be processed, comprised of the ballast and specimen mixed together
4 Principle

A specimen is washed in an automatic washing machine and dried according to specified procedures.

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ISO/FDIS 6330:2021(E)
5 Apparatus and materials
5.1 Automatic washing machines
5.1.1 Reference washing machine Type A — Horizontal axis, front-loading type

The specification for reference washing machine Type A shall be in accordance with Annex A.

5.1.2 Reference washing machine Type B — Vertical axis, top-loading agitator type

The specification for reference washing machine Type B shall be in accordance with Annex C.

5.1.3 Reference washing machine Type C — Vertical Axis, top-loading pulsator type

The specification for reference washing machine Type C shall be in accordance with Annex D.

5.2 Tumble dryers
5.2.1 Type A1 tumble dryer — Vented
The specification for Type A1 tumble dryer shall be in accordance with Annex F.
5.2.2 Type A2 tumble dryer — Condenser
The specification for Type A2 tumble dryer shall be in accordance with Annex F.
5.2.3 Type A3 tumble dryer — Large vented
The specification for Type A3 tumble dryer shall be in accordance with Annex F.
5.3 Electrically (dry) heated flat-bed press

If this method of drying is used, the type of press shall be specified among the interested parties.

5.4 Line drying
For procedure for line drying, see 10.2.1; for line drip drying, see 10.2.2.
5.5 Drying racks

Use screen drying racks of approximately 16 mesh stainless steel or plastic for flat drying (see 10.2.3)

or flat drip drying (see 10.2.4).
5.6 Ballasts
5.6.1 Type I, 100 % cotton ballast

The nominal composition of 100 % Cotton ballast shall be in accordance with Annex G.

5.6.2 Type II, 50 % cotton/50 % polyester ballast

The nominal composition of 50 % cotton/50 % polyester ballast shall be in accordance with Annex G.

5.6.3 Type III, 100 % polyester ballast

The nominal composition of 100 % polyester ballast shall be in accordance with Annex G.

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ISO/FDIS 6330:2021(E)
5.6.4 Other ballast

Ballast associated with another product performance specification may be used if agreed upon between

interested parties. If used, include alternate ballasts in the test report.
6 Reagents
6.1 Reference detergents

NOTE Annex H uses the term “brightener”, Annexes I and L use the term “optical whitener”, and Annex K

uses the term “optical brightener”, both of which represent “optical brightener”.

6.1.1 Reference detergent 1

Reference detergent 1 is a non-phosphate powder detergent without enzymes and is available both

with and without optical brightener. [Other designations are 1993 AATCC standard reference detergent

without optical brightener (WOB) and 1993 AATCC standard reference detergent with optical

brightener.]
Reference detergent 1 may only be used in machine Type B.

The nominal composition of reference detergent 1 shall be in accordance with Annex H.

6.1.2 Reference detergent 2

Reference detergent 2 is a non-phosphate powder detergent with optical brightener and with enzymes.

(Another designation is IEC reference detergent A .)
Reference detergent 2 may be used in both machine Type A and Type B.

The nominal composition of reference detergent 2 shall be in accordance with Annex I.

Distribution and mixing shall be in accordance with Annex N.
6.1.3 Reference detergent 3

Reference detergent 3 is a non­phosphate powder detergent without optical brightener and without

enzymes. (Another designation is ECE reference detergent 98.)
Reference detergent 3 may be used in both machine Type A and Type B.

The nominal composition of reference detergent 3 shall be in accordance with Annex J.

Distribution and mixing shall be in accordance with Annex N.
6.1.4 Reference detergent 4

Reference detergent 4 is a non-phosphate powder detergent with optical brightener and with enzymes.

[Another designation is JIS K 3371 (Category 1).] Reference detergent 4 can only be used in washing

machine Type C.

The nominal composition of reference detergent 4 shall be in accordance with Annex K.

6.1.5 Reference detergent 5

Reference detergent 5 was a non-phosphate liquid detergent available from AATCC. It is no longer

commercially available. In order to maintain continuity through the rest of the document and eliminate

confusion in the markets, subsequent references will maintain their original names (i.e. Reference

Detergent 6 will continue to be known as Reference Detergent 6).
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ISO/FDIS 6330:2021(E)
6.1.6 Reference detergent 6

Reference detergent 6 is a non­phosphate powder detergent with optical brightener and without

enzymes.
Reference detergent 6 may be used in machine Type A.

The nominal composition of reference detergent 6 shall be in accordance with Annex L.

Distribution and mixing shall be in accordance with Annex N.
6.1.7 Reference detergent 7

Reference detergent 7 is a liquid detergent for wool/silk material for mild/delicate washing process.

This detergent can be suitable for materials that are typically labelled as delicate or hand wash.

The nominal composition of reference detergent 7 shall be in accordance with Annex M.

6.2 Water
6.2.1 Water hardness

Water hardness shall be a maximum of 3,0 mmol/l expressed as calcium carbonate, in accordance with

ISO 6059.

Alternative water hardness can be applicable with a consent among the interested parties. In this case,

water hardness shall be reported.
6.2.2 Water pressure

The laboratory water supply pressure at the inlet to the reference washing machine shall be higher

than 150 kPa.
6.2.3 Cold-water inlet temperature

The water temperature at the inlet to the reference washing machines shall be no more than 25 °C.

When the measurement is carried out with a water temperature that differs from the limit, the supply

temperature shall be reported.
7 Conditioning and testing atmosphere

The conditioning atmosphere used for textile specimens shall be in accordance with ISO 139.

8 Wash load
8.1 Total wash load

The total air-dry load mass (i.e. specimen plus appropriate ballast, see 5.6 and 8.3) shall be (2,0 ± 0,2) kg

for all types of reference washing machines.

In the case of testing a whole garment, report the total load mass if it is more than 2,2 kg.

8.2 Number of specimens

The number of specimens to be subjected to the washing and drying procedures specified in this

document shall be determined by the purpose for which the
...