SIST EN ISO 105-G02:1999

• Abstract:

  Specifies a method for determining the resistance of the colour of textiles of all kinds and in all forms, except loose fibres, to exposure to atmospheric oxides of nitrogen as derived from the combustion of chemically pure butane gas. The method may be used for rating the colour fastness of dyes by applying the dye to textiles by a specified procedure and at a specified depth of colour and testing the dyed textiles. The change in colour is assessed with the grey scale.

• Status: Published
• Publication Date: 28-Feb-1999
• ICS: 59.080.01 - Textiles in general
• Technical Committee: ITEK - Textile and textile products
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Mar-1999
• Due Date: 01-Mar-1999
• Completion Date: 01-Mar-1999
• Ref Project: EN ISO 105-G02:1997 - Textiles - Tests for colour fastness - Part G02: Colour fastness to burnt-gas fumes (ISO 105-G02:1993, including Technical Corrigendum 1:1995)

• Refers: SIST EN 14670:2005 - Surface active agents - Sodium dodecyl sulfate - Analytical method
• Effective Date: 28-Jan-2026
• Refers: SIST EN ISO 105-A01:2010 - Textiles - Tests for colour fastness - Part A01: General principles of testing (ISO 105-A01:2010)
• Effective Date: 28-Jan-2026
• Refers: SIST EN ISO 105-C06:2012 - Textiles - Tests for colour fastness - Part C06: Colour fastness to domestic and commercial laundering (ISO 105-C06:2010)
• Effective Date: 28-Jan-2026
• Refers: SIST EN ISO 105-D01:2013 - Textiles - Tests for colour fastness - Part D01: Colour fastness to dry cleaning using perchloroethylene solvent (ISO 105-D01:2010)
• Effective Date: 28-Jan-2026
• Refers: SIST EN 772-19:2000 - Methods of test for masonry units - Part 19: Determination of moisture expansion of large horizontally perforated clay masonry units
• Effective Date: 28-Jan-2026
• Refers: SIST EN 20105-A02:1996 - Textiles - Tests for colour fastness - Part A02: Grey scale for assessing change in colour (ISO 105-A02:1993)
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 340:2004 - Protective clothing - General requirements
• Effective Date: 28-Jan-2026
• Corrected By: SIST EN ISO 105-G02:1999/AC:2010 - Textiles - Tests for colour fastness - Part G02: Colour fastness to burnt-gas fumes (ISO 105-G02:1993, including Technical Corrigendum 1:1995/Cor 2:2009)
• Effective Date: 01-Jan-2010

SIST EN ISO 105-G02:1999 is the SIST adoption of an ISO textile test method for colour fastness to burnt-gas fumes. It specifies how to expose textiles to atmospheric oxides of nitrogen from chemically pure butane combustion and how to rate the resulting colour change with the grey scale. It is used for textiles of all kinds and forms, and also for rating dyes applied to textiles by a specified procedure.

What does SIST EN ISO 105-G02:1999 specify?

SIST EN ISO 105-G02:1999 specifies a test method for resistance of textile colour to burnt-gas fumes. The method applies to textiles in all forms except loose fibres, and it can also be used to judge dye fastness on dyed textiles prepared in the prescribed way.

The document is organized into:

• Scope
• Normative references
• Principle
• Apparatus and materials
• Test specimens
• Procedure
• Test report
• Annex A and Annex B, both normative

Annex	What it covers
Annex A	Exposure chamber requirements and example apparatus
Annex B	Test control fabric and the standard of fading

What are the key requirements of SIST EN ISO 105-G02:1999?

The standard measures colour change after exposure to nitrogen oxides from butane combustion, then compares the change with the grey scale. In practice, this means the user must control the exposure chamber, the test control fabric, and the assessment step so results are comparable.

Apparatus and exposure conditions

Clause 4 requires an exposure chamber, a test control, a standard of fading, the grey scale from ISO 105-A02, chemically pure butane gas, and a suitable burner. Annex A explains that the chamber must allow free circulation of the fumes around suspended specimens, with minimal contact at the suspension point, and that temperature control is important because fading varies with chamber conditions.

Test specimens

Clause 5 sets the specimen approach for different textile forms. Fabrics are tested as 40 mm x 100 mm specimens, yarn is knitted into fabric before testing, and the standard also allows testing of the original fabric for fastness in storage or use. For dry-cleaning-related evaluation, the specimen is first dry cleaned before exposure, and if washing is relevant the specimen may be washed as described before testing.

Exposure and assessment

Clause 6 states that specimens and the test control are exposed together until the test control changes to match the standard of fading. The change in each specimen is then assessed immediately with the grey scale, and repeated exposure can continue for a set number of cycles or until a specified level of colour change is reached. This is the core laboratory step that turns the chamber exposure into a usable fastness rating.

Humidity, temperature and reporting

Clause 6 also notes that humidity and temperature affect fading, and any humidity increase must be recorded in the report. Clause 7 requires the publication reference, sample identification, numerical colour-change ratings, cycle count, average temperature, and any humidity-raising method used. That matters because the same textile can fade differently if chamber conditions are not documented.

Reference materials

Annex B explains how the test-control fabric is prepared and how the standard of fading is established and stored. In practice, this means laboratories must keep matched control materials for consistent comparisons over time and between locations.

What terms does SIST EN ISO 105-G02:1999 define?

• Grey scale - The comparison scale used to judge the amount of colour change after exposure.
• Test control - The reference fabric exposed with the specimen so the exposure can be judged against a known fading response.
• Standard of fading - The fabric that represents the target faded condition for the test control.
• Oxides of nitrogen - The active atmospheric products formed by burning the chemically pure butane gas in the test.
• Butane gas - The fuel used to generate the burnt-gas fumes in the exposure chamber.
• Specimen - The textile piece being tested for colour fastness.
• Surface-active agent - A wetting additive used in the buffered urea solution specified for one part of the procedure.

Who uses SIST EN ISO 105-G02:1999?

Textile laboratories use this standard to measure colour fastness to burnt-gas fumes in a repeatable way. Textile manufacturers and dyehouses use it to compare dyes, finishes, and base materials before release.

Quality managers use it when they need documented fastness results for incoming materials, process control, or product approval. Buyers and specifiers use it when they need a common test method for textiles that may face nitrogen-oxide exposure in storage, use, or after dry-cleaning.

What changed in SIST EN ISO 105-G02:1999 from the previous edition?

This second edition cancels and replaces the first edition included in ISO 105-G:1978. The foreword describes it as a minor revision.

Which standards are used with SIST EN ISO 105-G02:1999?

• ISO 105-A01 - Gives the general principles of colour fastness testing.
• ISO 105-A02 - Provides the grey scale for assessing change in colour.
• ISO 105-C06 - Supplies the laundering method referenced for washing-related preparation.
• ISO 105-DO1 - Supplies the dry-cleaning method referenced for dry-cleaning-related preparation.

What does the SIST EN ISO 105-G02:1999 document contain?

The document gives a full laboratory procedure rather than a product specification. It includes the test principle, the list of apparatus and materials, specimen preparation options, the exposure procedure, and the reporting items.

Annex A describes the chamber features needed for controlled exposure, including airflow around the specimens and temperature control. Annex B explains the preparation and handling of the test-control fabric and the standard of fading, which are needed to make ratings comparable. The procedure also distinguishes between direct exposure, post-wash testing, and post-dry-cleaning testing, so users can choose the route that matches the textile’s intended service condition.

SLOVENSKI STANDARD
01-marec-1999
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Textiles - Tests for colour fastness - Part G02: Colour fastness to burnt-gas fumes (ISO
105-G02:1993, including Technical Corrigendum 1:1995)
Textilien - Farbechtheitsprüfungen - Teil G02: Farbechtheit gegen Verbrennungsgase
(ISO 105-G02:1993, einschließlich Technische Korrektur 1:1995)
Textiles - Essais de solidité des teintures - Partie G02: Solidité des teintures aux fumées
de gaz brulés (ISO 105-G02:1993, Rectificatif Technique 1:1995 inclus)
Ta slovenski standard je istoveten z: EN ISO 105-G02:1997
ICS:
59.080.01 Tekstilije na splošno Textiles in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

INTERNATIONAL ISO
105-G02
STANDARD
Second edition
1993-10-01
- Tests for colour fastness -
Textiles
Part G02:
Colour fastness to burnt-gas fumes
Textiles - Essais de solidite des teintures -
Partie G02: Soliditk des teintures aux fumees de gaz briik
Reference number
ISO 105~G02:1993(E)
ISO 1059G02:1993(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. Esch 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.
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 ISO 105-G02 was prepared by Technical Committee
ISO/TC 38, Textiles, Sub-Committee SC 1, Tests for coloured textiles and
coloran ts.
This second edition cancels and replaces the first edition (included in
ISO 105-G:1978), of which it constitutes a minor revision.
ISO 105 was previously published in thirteen “Parts”, each designated by
a letter (e.g. “Part A”), with publication dates between 1978 and 1985.
Esch part contained a series of “sections”, each designated by the re-
spective part letter and by a two-digit serial number (e.g. “Section AO1 “).
These sections are now being republished as separate documents, them-
selves designated “Parts” but retaining their earlier alphanumeric desig-
nations. A complete list of these Parts is given in ISO 105-AOl .
Annexes A and B form an integral part of this part of ISO 105.
0 ISO 1993
All rights reserved. No patt of this publication may be reproduced or utilized in any form or
by any means, electronie or mechanical, including photocopying and microfilm, without per-
mission in writing from the publisher.
International Organization for Standardization
Case Postale 56 l CH-l 211 Geneve 20 l Switzerland
Printed in Switzerland
INTERNATIONAL STANDARD ISO 105-G02:1993(E)
- Tests for colour fastness -
Textiles
Part G02:
Colour fastness to burnt-gas fumes
ISO 105-DO1 :1987, Textiles - Tests for colour fast-
1 Scope
Part DO 1: Colour fastness to dry cleaning.
ness -
1.1 This part of ISO 105 specifies a method for de-
termining the resistance of the colour of textiles of all
3 Principle
kinds and in all forms, except loose fibres, to expo-
Sure to atmospheric oxides of nitrogen as derived
A specimen of the textile and a test-control fabric are
from the combustion of chemically pure butane gas.
exposed simultaneously to oxides of nitrogen from
burnt-gas fumes until the test control Shows a Change
in colour corresponding to that of a Standard of fading.
1.2 This method may be used for rating the colour
The Change in colour of the specimen is assessed
fastness of dyes by applying the dye to textiles by a
with the grey scale. If no colour Change is observed
specified procedure and at a specified depth of colour
in the specimen after one exposure period or cycle,
and testing the dyed textiles.
exposure may be continued for either a specified
number of periods or for the number of periods re-
2 Normative references quired to produce a specified amount of colour
Change in the specimen.
The following Standards contain provisions which,
through reference in this text, constitute provisions
4 Apparatus and materials
of this part of ISO 105. At the time of publication, the
editions indicated were valid. All Standards are subject
to revision, and Parties to agreements based on this
4.1 Exposure chamber (see annex A).
part of ISO 105 are encouraged to investigate the
possibility of applying the most recent editions of the
4.2 Test control (see annex B).
Standards indicated below. Members of IEC and ISO
maintain registers of currently valid International
Standards.
4.3 Standard of fading (see annex B).
ISO 105-AO1:1989, Textiles - Tests for colour fast-
4.4 Grey scale for assessing Change in colou~,
ness - Part AOI: General principles of testing.
complying with ISO 105-A02.
ISO 105-AO2:1993, Textiles - Tests for colour fast-
ness - Part A02: Grey scale for assessing Change in
4.5 Butane gas, chemically pure, and a suitable
colour.
burner.
ISO 105-CO6:1987, Textiles - Tests for colour fast- Any gas burner may be used and either a yellow lu-
ness - Part C06: Colour fastness to domestic and minous or a blue-green flame is suitable, though the
commercial laundering. latter is to be preferred in Order to minimize the for-
ISO 105-G02:1993(E)
mation of soot. A wire gauze placed above the flame cleaning and before testing to compare with the
at a distance which Causes it to be heated to some- tested specimen.
where between red and white heat will increase the
percentage of oxides of nitrogen and will thereby ac-
5.5 For fastness to oxides of nitrogen after washing
telerate the fading of the test control and specimens.
(see note 1), unless a specific wash-test is specified,
Brass, iron, Monel alloy and stainless-steel gauzes
wash the test specimen in a detergent Solution con-
give practically the same results.
taining 5 g of AATCC reference detergent WOB per
litre of water of approximately zero hardness for
4.6 Urea, Solution containing, per litre, 10 g of Urea
10 min at 40 “C, rinse in warm water and allow it to
(NH,CONH,), buffered to pH 7 by the addition of
dry in the air. Retain a specimen after washing and
0,4 g of sodium dihydrogen orthophosphate
before testing to compare with the tested specimen.
dodecahydrate (NaH,POJ2H,O) and 2,5 g of
disodium hydrogen orthophosphate dihydrate
6 Procedure
(Na,HP0,.2H,O), and containing 0,l g or less of a
rapid-wetting surface-active agent, for example
sodium dioctyl sulfosuccinate. 6.1 Freely suspend each specimen and a piece of
the test control in the test chamber (4.1) so that they
are not in contact with each other and do not come
4.7 If required, perchloroethylene, Stoddard sol-
into direct contact with any hot metallic surface. If
vent or trichloroethylene (see 5.4).
fewer specimens than are required to fill the chamber
are to be tested, fill the chamber with cuttings of un-
NOTE 1 All the inhibitors available at present are soluble
dyed fabric of the Same kind. Light the gas burner
to some extent in water and therefore tend to be removed
(4.5) and adjust the flame and ventilating equipment
by washing. These inhibitors are in general not soluble in
the ordinary dry-cleaning solvents, and fabrics treated with
so that the temperature in the chamber does not ex-
suitable inhibitors should withstand several dry-cleanings
ceed 60 “C.
without losing their resistance to gas fading provided the
dry-cleaning Operation does not not include spotting or
NOTE 3 Other things being equal, the fading of the
sponging with water). The inhibitors also tend to lose their
specimens will vary according to the temperature in the
efficiency if the fabrics come into frequent contact with
exposure chamber, which in turn depends upon the amount
Perspiration.
of gas consumed in a given period. Exposure for 8 h to
12 h at 60 “C may Cause as much colour destruction as ex-
posure for 96 h at 21 “C to 27 “C. Apart from this, the
4.8 If required, AATCC reference detergent WOB
temperature may vary somewhat in different Parts of the
(see 5.5), as specified in ISO 105-CO6:1987, sub-
exposure chamber from time to time.
clause 8.2.
The fading of dyes on acetate, triacetate and Polyester
by oxides of nitrogen will occur at low relative hu-
5 Test specimens
midities, as would be obtained in the conventional
chamber at temperatures approaching 60 “C. For
NOTE 2 When an acetate fabric is pressed with an iron
other fibres such as nylon, viscose or cotton, it is
which is hot enough to remove all wrinkles, there is a dan-
ger of sealing the surface of the fabric, which would in- necessary to use high humidities in Order to produce
crease th
...