Textiles -- Tests for colour fastness

This document specifies a method for determining the colour fastness and ageing properties of all kinds and forms of dyed and printed textiles and/or other organic substrates under the action of an artificial light source representative of natural daylight (D65), and under the simultaneous action of heat. Of the five different sets of exposure conditions specified (see 7.1.1), four use D65, and the other one uses a somewhat lower cut-off wavelength. The test method gives special consideration to the light and heat conditions that occur in the interior of a motor vehicle. The five different sets of conditions using the different optical filter systems specified can produce different test results. Results from tests performed using different apparatus (instrument types) for the same set of conditions and optical filter system are not comparable because comparable performance has not been validated

Textiles -- Essais de solidité des coloris

Le présent document spécifie une méthode pour déterminer la solidité des coloris et les propriétés de vieillissement de tous les types et formes de textiles teints et imprimés et/ou autres supports organiques sous l'action d'une source de lumičre artificielle représentative de la lumičre naturelle du jour (D65) et sous l'action simultanée de la chaleur. Parmi les cinq différentes gammes de conditions d'exposition spécifiées (voir 7.1.1), quatre utilisent D65 et la cinquičme, une transmission spectrale de longueur d'onde un peu inférieure. La méthode d'essai tient particuličrement compte des conditions d'éclairage et de chaleur de l'intérieur d'un véhicule ŕ moteur. Les cinq différentes gammes de conditions peuvent produire différents résultats d'essai ŕ l'aide des différents dispositifs de filtration optique spécifiés. Les résultats obtenus pour des essais réalisés ŕ l'aide d'appareillages (types d'instruments) différents pour une męme gamme de conditions et un męme dispositif de filtration optique ne sont pas comparables, car des performances comparables n'ont pas été validées.

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Status
Published
Publication Date
04-Jun-2020
Current Stage
6060 - International Standard published
Start Date
05-Jun-2020
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INTERNATIONAL ISO
STANDARD 105-B06
Third edition
2020-06
Textiles — Tests for colour fastness —
Part B06:
Colour fastness and ageing to artificial
light at high temperatures: Xenon arc
fading lamp test
Textiles — Essais de solidité des coloris —
Partie B06: Solidité des coloris et vieillissement à la lumière
artificielle à hautes températures: Essai avec lampe à arc au xénon
Reference number
ISO 105-B06:2020(E)
ISO 2020
---------------------- Page: 1 ----------------------
ISO 105-B06:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting

on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address

below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 105-B06:2020(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

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

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

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

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

4.1 Light fastness test ................................................................................................................................................................................. 2

4.2 Ageing test .................................................................................................................................................................................................. 2

5 Reference materials and apparatus ................................................................................................................................................. 2

5.1 Reference materials ............................................................................................................................................................................ 2

5.1.1 General...................................................................................................................................................................................... 2

5.1.2 References 1 to 8 .............................................................................................................................................................. 2

5.1.3 References L2 and L4 ................................................................................................................................................... 2

5.2 Apparatus .................................................................................................................................................................................................... 3

5.2.1 Exposure apparatus ...................................................................................................................................................... 3

5.2.2 Optical light source and filter system ............................................................................................................ 3

5.2.3 Radiometer for monitoring the exposure conditions ...................................................................... 3

5.2.4 Temperature sensors ................................................................................................................................................... 4

5.2.5 Opaque cardboard .......................................................................................................................................................... 4

5.2.6 Grey scale for assessing change in colour .................................................................................................. 4

5.2.7 Computerized spectral colour-measuring instrument ................................................................... 4

5.2.8 Polyester (PES) nonwoven fabric ...................................................................................................................... 4

6 Preparation of specimens and exposure card ....................................................................................................................... 4

7 Procedure..................................................................................................................................................................................................................... 5

7.1 Exposure conditions ........................................................................................................................................................................... 5

7.2 Setting the exposure conditions for set No. 3 ............................................................................................................... 7

7.3 Exposure methods ............................................................................................................................................................................... 7

7.3.1 General...................................................................................................................................................................................... 7

7.3.2 Exposure Method 1 (end point determined by change in colour in the

specimen) ............................................................................................................................................................................... 7

7.3.3 Exposure Method 2 (end point determined by change in colour of reference) ........ 7

7.3.4 Exposure Method 3 (end point determined on the ageing test of 4.2) ............................. 7

7.3.5 Exposure Method 4 (end point determined on radiant energy) ............................................ 8

8 Assessment of colour fastness to light ........................................................................................................................................... 8

9 Test report ................................................................................................................................................................................................................... 9

Annex A (normative) Exposure methods and optical filter types .......................................................................................10

Annex B (normative) Apparatus for determining colour fastness and ageing with air-cooled

xenon arc lamps..................................................................................................................................................................................................11

Annex C (normative) Apparatus for determining colour fastness and ageing with water-

cooled xenon arc lamps ..............................................................................................................................................................................13

Annex D (normative) Guidance on performing the test according to set of conditions No. 5

(in addition to requirements specified in Annex C) ..............................................................................................................15

Bibliography .............................................................................................................................................................................................................................17

© ISO 2020 – All rights reserved iii
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ISO 105-B06:2020(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 1, Tests for

coloured textiles and colorants, in collaboration with the European Committee for Standardization (CEN)

Technical Committee CEN/TC 248, Textiles, in accordance with the Agreement on technical cooperation

between ISO and CEN (Vienna Agreement).

This third edition cancels and replaces the second edition (ISO 105-B06: 1998), which has been

technically revised. It also incorporates the Amendment ISO 105-B06: 1998/ Amd .1: 2002.

The main changes compared to the previous edition are as follows:
— dates in normative references have been removed;
— flat array apparatus for testing has been introduced.
A list of all parts in the ISO 105 series can be found on the ISO website.

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.
iv © ISO 2020 – All rights reserved
---------------------- Page: 4 ----------------------
INTERNATIONAL STANDARD ISO 105-B06:2020(E)
Textiles — Tests for colour fastness —
Part B06:
Colour fastness and ageing to artificial light at high
temperatures: Xenon arc fading lamp test
1 Scope

This document specifies a method for determining the colour fastness and ageing properties of all kinds

and forms of dyed and printed textiles and/or other organic substrates under the action of an artificial

light source representative of natural daylight (D65), and under the simultaneous action of heat. Of the

five different sets of exposure conditions specified (see 7.1.1), four use D65, and the other one uses a

somewhat lower cut-off wavelength. The test method gives special consideration to the light and heat

conditions that occur in the interior of a motor vehicle.

The five different sets of conditions using the different optical filter systems specified can produce

different test results. Results from tests performed using different apparatus (instrument types) for the

same set of conditions and optical filter system are not comparable because comparable performance

has not been validated.
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 105-A01, Textiles — Tests for colour fastness — Part A01: General principles of testing

ISO 105-A02, Textiles — Tests for colour fastness — Part A02: Grey scale for assessing change in colour

ISO 105-A05, Textiles — Tests for colour fastness — Part A05: Instrumental assessment of change in colour

for determination of grey scale rating

ISO 105-B02, Textiles — Tests for colour fastness — Part B02: Colour fastness to artificial light: Xenon arc

fading lamp test

ISO 105-B05, Textiles — Tests for colour fastness — Part B05: Detection and assessment of photochromism

3 Terms and definitions
No terms and definitions are listed in this document.

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/
© ISO 2020 – All rights reserved 1
---------------------- Page: 5 ----------------------
ISO 105-B06:2020(E)
4 Principle
4.1 Light fastness test

A specimen to be tested is exposed to artificial light under prescribed conditions, along with a set of

blue wool references. The colour fastness shall be assessed by comparing the change in colour of the

test specimen with that of the references used, or with the grey scale in accordance with ISO 105-A02,

or by means of a colour measuring instrument in accordance with ISO 105-A05 after the specimen has

been exposed to a specified amount of radiant energy.
4.2 Ageing test

A specimen to be tested, together with blue wool reference 6 (see ISO 105-B02), is exposed to artificial

light under prescribed conditions. The change in colour of the specimen shall be evaluated on the grey

scale in accordance with ISO 105-A02, or by means of a colour-measuring instrument in accordance

with ISO 105-A05. Additional ageing criteria, such as mechanical properties, may also be evaluated.

Attention shall be paid to the principles for specifying and carrying out the tests, and for evaluating the

test results according to ISO 105-A01.
5 Reference materials and apparatus
5.1 Reference materials
5.1.1 General

Two different sets of blue wool references may be used. The two sets of references are not

interchangeable.
5.1.2 References 1 to 8

Blue wool references developed and produced in Europe are identified by the numerical designations

1 to 8. These references are blue wool cloths dyed with the dyes listed in Table 1. They range from 1

(very low colour fastness) to 8 (very high colour fastness) so that each higher-numbered reference is

approximately twice as fast as the preceding one (see Table 1).
Table 1 — Dyes for blue wool references 5 to 8
[3]
Reference Dye (Colour Index designation)
5 CI acid blue 47
6 CI acid blue 23
7 CI solubilized vat blue 5
8 CI solubilized vat blue 8
NOTE References 1 to 4 are not applicable to this test.
5.1.3 References L2 and L4

Two blue wool references developed and produced in the United States are part of a series of eight

references identified by the letter L followed by the numerical designation. These references are for

the purpose of determining whether the xenon arc apparatus is operating within the desired range

concerning set of conditions No. 5 (see D.4).
2 © ISO 2020 – All rights reserved
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ISO 105-B06:2020(E)
5.2 Apparatus
5.2.1 Exposure apparatus

The exposure apparatus consists essentially of a climatic test chamber made of a corrosion-resistant

material and containing the optical light source, a filter system and holders for the test specimens.

5.2.2 Optical light source and filter system

One or more xenon arc lamps serve as the optical light source. The light for determining the hot

light fastness shall be filtered. Optical light filter systems are used for this purpose. Both absorption

filters and combinations of absorption and reflection filters shall be used according to Annex B and C,

depending on the test instrument being used. Irrespective of the type of filtration, the conditions listed

in Table 2 on the spectral energy distribution at the surface of the specimen shall be met.

Table 2 — Spectral irradiance
Relative irradiance
Wavelength
nm Set of exposure conditions
1, 2, 3 and 6 5
290 0 0,07
300 0,05 0,25
280 to 320 0,1 1,1 ± 0,5
320 to 360 3,0 ± 0,85 4,1 ± 1,17
360 to 400 +20, +23,
57, 64,
−13, −15,
+30,
400 to 520 27,3 ± 2,6
32,2
−50,
520 to 640 30 ± 3,0 27,2 ± 2,7
640 to 800 29,1 ± 6,0 +34,
33,8
−88,
< 800 100 100
As a percentage of the total irradiance in the wavelength range up to 800 nm.

The radiant power shall be chosen to ensure that the conditions given in 7.1.1 are fulfilled.

The irradiance shall not deviate by more than 10 % from the average over the entire area occupied by

the specimens and references.

Ageing causes the spectral energy distribution and irradiance to change during the service life of

the xenon arc lamps and optical filters. Replacement of the lamps and filters in accordance with the

manufacturers' instructions, allows the energy distribution and irradiance to be maintained. The

irradiance can also be adjusted to keep it constant. Manufacturers who supply an exposure apparatus

for use with this document should ensure that the conditions specified in 5.2 and 7.1.1 are met.

5.2.3 Radiometer for monitoring the exposure conditions

Since the irradiance at the surface of the specimen is affected by lamp intensity, lamp geometry and

the specimen rack (lamp to specimen distance), repeatability and reproducibility of exposure shall be

ensured by a monitoring radiometer which permits exposure to specified levels of irradiance (radiant

flux per unit area) at a point in the plane of the specimen rack (see B.3 and C.3).

© ISO 2020 – All rights reserved 3
---------------------- Page: 7 ----------------------
ISO 105-B06:2020(E)
5.2.4 Temperature sensors
5.2.4.1 Black-standard thermometer (BST) (for sets of conditions 1 to 3)

The black-standard thermometer shall consist of a plain stainless-steel plate, measuring about

70 mm × 40 mm and with a thickness of about 0,5 mm, whose temperature is measured by a thermal

resistor, with good heat-conducting properties fitted to the reverse side. The metal plate is fixed to a

plastic plate so that it is thermally insulated. It is coated with a black layer which has an absorption of at

least 95 %, even in the infrared region.
5.2.4.2 Black-panel thermometer (BPT) (for sets of conditions 5 and 6)

The black-panel thermometer shall consist of a metal plate approximately 70 mm wide, 150 mm

long, and 1 mm thick to which is fastened a thermal resistor whose sensitive portion is centred both

horizontally and vertically on the panel, the entire system being covered with a non-selective, infrared

absorbing black finish. The black finish shall have at least 95 % absorbance. The side of the panel not

facing the light source shall not be thermally insulated.
5.2.5 Opaque cardboard

This shall be of low sulfur content and free from fluorescent brightening agents, or other thin opaque

material, partially covering the specimens and references.
5.2.6 Grey scale for assessing change in colour
This shall be in accordance with ISO 105-A02.
5.2.7 Computerized spectral colour-measuring instrument
This is for evaluating the change in colour according to ISO 105-A05.
5.2.8 Polyester (PES) nonwoven fabric
2 2

This shall be at least 5 mm thick, with a mass per unit area of 100 g/m ± 5 g/m , for placing under the

specimens.
6 Preparation of specimens and exposure card

6.1 Test the specimens either with their own backing material or on a layer of polyester nonwoven

fabric (see 5.2.8). Unless agreed otherwise, the thickness of the underlying material shall be at least

5 mm. The limit specified in 6.4 shall be observed. The blue wool references shall be placed on white card

that does not contain fluorescent brightening agents.

6.2 Cut sections of at least 40 mm × 20 mm from flat materials and if necessary, attach them by their

narrow edges to white card that does not contain fluorescent brightening agents. For pile goods, carpets

and prints, cut the section to an appropriate size to include all colour components.

Wind yarns closely on to a card or mount on it in parallel lengths.

Form loose fibres into a nonwoven fabric or a fibrous web, of uniform thickness and surface and then

mount on the white card.

To facilitate handling, the specimens to be tested and the references may be mounted on one or more

cards as indicated in Figure 1.
4 © ISO 2020 – All rights reserved
---------------------- Page: 8 ----------------------
ISO 105-B06:2020(E)

6.3 The specimens and references shall be of equal size and shape in order to avoid errors in

assessment due to overrating the visual contrast between exposed and unexposed parts on the larger

pattern as against the narrower references (see 8.1).

6.4 For thick specimens or those with an underlay, the distances from the light source to the surface

of the specimens, the references and the black-standard thermometer or black-panel thermometer shall

not differ by more than about 5 mm.
Figure 1 — Mounting for exposure method 2
7 Procedure
7.1 Exposure conditions
7.1.1 General

Five different sets of exposure conditions are permitted in terms of irradiance, black-standard

temperature and test-chamber temperature. The specimens and references shall be exposed under one

of the sets of temperature and humidity conditions given in Tables 3, 4 and 5 and according to Annex A.

© ISO 2020 – All rights reserved 5
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ISO 105-B06:2020(E)
Table 3 — Exposure conditions set Nos. 1 to 3
Condition Set of conditions
3 1 2
IR component normal high high
Black-standard 100 ± 3 115 ± 3 +0
temperature (°C)
Test chamber 65 ± 3 48 ± 3 +0
temperature (°C)
a a
Test chamber 30 ± 5 20 ± 10 45 ± 10
relative humidity (%) no humidification
b b
Irradiance 45 to 162 70 to 90 —
2 c
(W/m ) 1,1 to 3,6

If agreed between the interested parties the test may be run without using humidification unit.

Broad-band measurement at 300 nm to 400 nm.
Narrow-band measurement at 420 nm.

The test method set of conditions No. 1 may occasionally give rise to temperatures at the surface of the

specimen that are considerably higher than those encountered in practice. In such cases, the method is

unsuitable.
Table 4 — Exposure cycle under set of conditions No. 5
Condition “Light on” period “Light off” period
Irradiance at 340 nm (W/m ) 0,55 ± 0,01 —
Test-chamber temperature (°C) 63 ± 2 38 ± 2
Black-panel temperature (°C) 89 ± 2 38 ± 2
Test chamber relative humidity (%) 50 ± 10 95 ± 5
Temperature of conditioning water (°C) 63 ± 4 40 ± 4
Exposure begins at the start of a 3,8 h “light on” period.
Table 5 — Exposure conditions set No. 6
Condition Value
2 a
Irradiance (W/m ) 162 (1 ± 10 %)
Test-chamber temperature (°C) 50 ± 3
Black-panel temperature (°C) 89 ± 2
Test chamber relative humidity (%) 50 ± 5
Broad-band measurement at 300 nm to 400 nm.

7.1.2 Fit the exposure cards or specimens into specimen holders and then into the testing apparatus,

with all other specimen holders containing either white cards that are half-covered by an opaque cover

with cutout, or exposure cards.

7.1.3 Carry out exposure under sets of conditions 1, 3, 5 and 6 in the non-turning mode, and that under

set no. 2 in the turning mode. Interrupt exposure only for inspection purposes, in which case remove the

specimen holder concerned from the apparatus.
6 © ISO 2020 – All rights reserved
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ISO 105-B06:2020(E)
7.2 Setting the exposure conditions for set No. 3

Fit the testing apparatus with clean xenon arc lamps and clean filters. The light-measuring system shall

be calibrated according to the manufacturer's instructions.

Mount the exposure card with reference 6 (see 5.1.2) in a specimen holder and then in the apparatus,

with all other specimen holders containing white cards that are half-covered by an opaque cover with

cutout. Interrupt exposure only to inspect the exposure card. Continue exposure until a contrast

corresponding to rating 3 on the grey scale (see 5.2.6) is reached on reference 6 (see 5.1.2). By

2 2

experience, radiant exposure of (250 to 300) kJ/m at 420 nm corresponding to (11 to 13,2) MJ/m

between 300 nm and 400 nm is necessary.

The contrast on reference 6 is best measured colorimetrically with a spectrophotometer. If faded to

rating 3 of the grey scale, it corresponds to a value of 4,3 ± 0,4 DE* [Lab-Colour Space according to CIE,

Commission Internationale de l'Eclairage (CIELAB)] for D65/10°. Before measuring, place the reference

on unexposed card. When performing multiple exposures by method 3, inspect the specimens during

the individual exposure periods, making sure that any deviations from the rated value are compensated

during subsequent exposures, so that the sum of the deviations at the end of the series of exposures

does not exceed ± 0,4 DE* (CIELAB). Compensation is achieved by adjusting the exposure time or radiant

exposure. If agreed between the interested parties, the exposure may be continued until a contrast

corresponding to rating 2 on the grey scale is reached on reference 6. This means twice the necessary

radiant exposure.

NOTE 4,3 ± 0,4 DE* value for blue wool is the equivalent of a 3,4 ± 0,4 DE* value for the grey scale for

assessing the change in colour. In other words, both equal a colour change of grey scale 3.

7.3 Exposure methods
7.3.1 General

Expose the specimen (or group of specimens) and the required references simultaneously under the

desired conditions, in such a manner and for such a time as is necessary to fully evaluate the colour

fastness of each specimen relative to that of the references by progressively covering both the specimens

and exposed references during the test.

7.3.2 Exposure Method 1 (end point determined by change in colour in the specimen)

This method is considered the most exact and should be used in cases of dispute over the numerical

rating. The basic feature is the control of the exposure periods by inspection of the specimen and

therefore, one set of blue wool references is required for each specimen under test.

NOTE This exposure method is not used by the automotive industry and has therefore been omitted from

this document. For a detailed description, see ISO 105-B02: 2014, 8.3.2.
7.3.3 Exposure Method 2 (end point determined by change in colour of reference)

Expose the specimens, half-covered by an opaque cover with cutout, and the references using the

conditions given in 7.1.1. Monitor the effect of the light by frequently checking the references. Continue

exposure until a contrast corresponding to rating 3 or rating 2 on the grey scale for assessing change

in colour is observed between the exposed and unexposed parts of reference 6. Rating 3 on grey scale

corresponds to a value of 3,4 ± 0,4 DE* (CIELAB) for D65/10°.
7.3.4 Exposure Method 3 (end point determined on the ageing test of 4.2)

Using exclusively set of exposure conditions No. 3 in 7.1.1, subject the specimens to a prescribed number

of exposures in accordance with the specification in 7.2. Each exposure requires a new reference 6. The

minimum specimen size for multiple exposures depends on the subsequent assessment method.

© ISO 2020 – All rights reserved 7
---------------------- Page: 11 ----------------------
ISO 105-B06:2020(E)
7.3.5 Exposure Method 4 (end point determined on radiant energy)

Expose the specimens under set of conditions No. 3, 5 or 6 (see 7.1.1) to a specified level of radiant

exposure at a central wavelength of 340 nm, 420 nm or broad-band wavelength of 300 nm to 400 nm.

The exact level of radiant exposure will depend on the material and the application and shall be agreed

on by the interested parties.
8 Assessment of colour fastness to light

8.1 Remove all the covers from the test specimens and references thus revealing, depending on the

method used, one or two areas which have been exposed for different times, together with at least

one area which has not been exposed to light. After exposure, condition specimens for at least 24 h at

a temperature of (20 ± 2) °C and a relative humidity of (65 ± 3) %. For each method compare, under

suitable illumination (see ISO 105-A01:2010, Clause 15), the changes in each specimen with the relevant

changes in the references as described below. Compare in each case the exposed area of the specimen

with the unexposed area of the specimen or, alternatively, with a piece of the original specimen.

a) Assessment after testing by exposure method 2
In this method, assess by comparing the change in colour of the spe
...

FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 105-B06
ISO/TC 38/SC 1
Textiles — Tests for colour fastness —
Secretariat: SAC
Voting begins on:
Part B06:
2020-03-11
Colour fastness and ageing to artificial
Voting terminates on:
light at high temperatures: Xenon arc
2020-05-06
fading lamp test
Textiles — Essais de solidité des coloris —
Partie B06: Solidité des coloris et vieillissement à la lumière
artificielle à hautes températures: Essai avec lampe à arc au xénon
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 105-B06:2020(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 2020
---------------------- Page: 1 ----------------------
ISO/FDIS 105-B06:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting

on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address

below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/FDIS 105-B06:2020(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

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

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

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

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

4.1 Light fastness test ................................................................................................................................................................................. 2

4.2 Ageing test .................................................................................................................................................................................................. 2

5 Reference materials and apparatus ................................................................................................................................................. 2

5.1 Reference materials ............................................................................................................................................................................ 2

5.1.1 General...................................................................................................................................................................................... 2

5.1.2 References 1 to 8 .............................................................................................................................................................. 2

5.1.3 References L2 and L4 ................................................................................................................................................... 2

5.2 Apparatus .................................................................................................................................................................................................... 3

5.2.1 Exposure apparatus ...................................................................................................................................................... 3

5.2.2 Optical light source and filter system ............................................................................................................ 3

5.2.3 Radiometer for monitoring the exposure conditions ...................................................................... 3

5.2.4 Temperature sensors ................................................................................................................................................... 4

5.2.5 Opaque cardboard .......................................................................................................................................................... 4

5.2.6 Grey scale for assessing change in colour .................................................................................................. 4

5.2.7 Computerized spectral colour-measuring instrument ................................................................... 4

5.2.8 Polyester (PES) nonwoven fabric ...................................................................................................................... 4

6 Preparation of specimens and exposure card ....................................................................................................................... 4

7 Procedure..................................................................................................................................................................................................................... 5

7.1 Exposure conditions ........................................................................................................................................................................... 5

7.2 Setting the exposure conditions for set No. 3 ............................................................................................................... 7

7.3 Exposure methods ............................................................................................................................................................................... 7

7.3.1 General...................................................................................................................................................................................... 7

7.3.2 Exposure Method 1 (end point determined by change in colour in the

specimen) ............................................................................................................................................................................... 7

7.3.3 Exposure Method 2 (end point determined by change in colour of reference) ........ 7

7.3.4 Exposure Method 3 (end point determined on the ageing test of 4.2) ............................. 7

7.3.5 Exposure Method 4 (end point determined on radiant energy) ............................................ 8

8 Assessment of colour fastness to light ........................................................................................................................................... 8

9 Test report ................................................................................................................................................................................................................... 9

Annex A (normative) Exposure methods and optical filter types .......................................................................................10

Annex B (normative) Apparatus for determining colour fastness and ageing with air-cooled

xenon arc lamps..................................................................................................................................................................................................11

Annex C (normative) Apparatus for determining colour fastness and ageing with water-

cooled xenon arc lamps ..............................................................................................................................................................................13

Annex D (normative) Guidance on performing the test according to set of conditions No. 5

(in addition to requirements specified in Annex C) ..............................................................................................................15

Bibliography .............................................................................................................................................................................................................................17

© ISO 2020 – All rights reserved iii
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ISO/FDIS 105-B06:2020(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 1, Tests for

coloured textiles and colorants, in collaboration with the European Committee for Standardization (CEN)

Technical Committee CEN/TC 248, Textiles, in accordance with the Agreement on technical cooperation

between ISO and CEN (Vienna Agreement).

This third edition cancels and replaces the second edition (ISO 105-B06: 1998), which has been

technically revised. It also incorporates the Amendment ISO 105-B06: 1998/ Amd .1: 2002.

The main changes compared to the previous edition are as follows:
— dates in normative references have been removed;
— flat array apparatus for testing has been introduced.
A list of all parts in the ISO 105 series can be found on the ISO website.

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.
iv © ISO 2020 – All rights reserved
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FINAL DRAFT INTERNATIONAL STANDARD ISO/FDIS 105-B06:2020(E)
Textiles — Tests for colour fastness —
Part B06:
Colour fastness and ageing to artificial light at high
temperatures: Xenon arc fading lamp test
1 Scope

This document specifies a method for determining the colour fastness and ageing properties of all kinds

and forms of dyed and printed textiles and/or other organic substrates under the action of an artificial

light source representative of natural daylight (D65), and under the simultaneous action of heat. Of the

five different sets of exposure conditions specified (see 7.1.1), four use D65, and the other one uses a

somewhat lower cut-off wavelength. The test method gives special consideration to the light and heat

conditions that occur in the interior of a motor vehicle.

The five different sets of conditions using the different optical filter systems specified can produce

different test results. Results from tests performed using different apparatus (instrument types) for the

same set of conditions and optical filter system are not comparable because comparable performance

has not been validated.
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 105-A01, Textiles — Tests for colour fastness — Part A01: General principles of testing

ISO 105-A02, Textiles — Tests for colour fastness — Part A02: Grey scale for assessing change in colour

ISO 105-A05, Textiles — Tests for colour fastness — Part A05: Instrumental assessment of change in colour

for determination of grey scale rating

ISO 105-B02, Textiles — Tests for colour fastness — Part B02: Colour fastness to artificial light: Xenon arc

fading lamp test

ISO 105-B05, Textiles — Tests for colour fastness — Part B05: Detection and assessment of photochromism

3 Terms and definitions
No terms and definitions are listed in this document.

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/
© ISO 2020 – All rights reserved 1
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ISO/FDIS 105-B06:2020(E)
4 Principle
4.1 Light fastness test

A specimen to be tested is exposed to artificial light under prescribed conditions, along with a set of

blue wool references. The colour fastness shall be assessed by comparing the change in colour of the

test specimen with that of the references used, or with the grey scale in accordance with ISO 105-A02,

or by means of a colour measuring instrument in accordance with ISO 105-A05 after the specimen has

been exposed to a specified amount of radiant energy.
4.2 Ageing test

A specimen to be tested, together with blue wool reference 6 (see ISO 105-B02), is exposed to artificial

light under prescribed conditions. The change in colour of the specimen shall be evaluated on the grey

scale in accordance with ISO 105-A02, or by means of a colour-measuring instrument in accordance

with ISO 105-A05. Additional ageing criteria, such as mechanical properties, may also be evaluated.

Attention shall be paid to the principles for specifying and carrying out the tests, and for evaluating the

test results according to ISO 105-A01.
5 Reference materials and apparatus
5.1 Reference materials
5.1.1 General

Two different sets of blue wool references may be used. The two sets of references are not

interchangeable.
5.1.2 References 1 to 8

Blue wool references developed and produced in Europe are identified by the numerical designations

1 to 8. These references are blue wool cloths dyed with the dyes listed in Table 1. They range from 1

(very low colour fastness) to 8 (very high colour fastness) so that each higher-numbered reference is

approximately twice as fast as the preceding one (see Table 1).
Table 1 — Dyes for blue wool references 5 to 8
[3]
Reference Dye (colour index designation)
5 CI acid blue 47
6 CI acid blue 23
7 CI solubilized vat blue 5
8 CI solubilized vat blue 8
NOTE References 1 to 4 are not applicable to this test.
5.1.3 References L2 and L4

Two blue wool references developed and produced in the United States are part of a series of eight

references identified by the letter L followed by the numerical designation. These references are for

the purpose of determining whether the xenon arc apparatus is operating within the desired range

concerning set of conditions No. 5 (see D.4).
2 © ISO 2020 – All rights reserved
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ISO/FDIS 105-B06:2020(E)
5.2 Apparatus
5.2.1 Exposure apparatus

The exposure apparatus consists essentially of a climatic test chamber made of a corrosion-resistant

material and containing the optical light source, a filter system and holders for the test specimens.

5.2.2 Optical light source and filter system

One or more xenon arc lamps serve as the optical light source. The light for determining the hot

light fastness shall be filtered. Optical light filter systems are used for this purpose. Both absorption

filters and combinations of absorption and reflection filters shall be used according to Annex B and C,

depending on the test instrument being used. Irrespective of the type of filtration, the conditions listed

in Table 2 on the spectral energy distribution at the surface of the specimen shall be met.

Table 2 — Spectral irradiance
Relative irradiance
Wavelength
nm Set of exposure conditions
1, 2, 3 and 6 5
290 0 0,07
300 0,05 0,25
280 to 320 0,1 1,1 ± 0,5
320 to 360 3,0 ± 0,85 4,1 ± 1,17
360 to 400 +20, +23,
57, 64,
−13, −15,
+30,
400 to 520 27,3 ± 2,6
32,2
−50,
520 to 640 30 ± 3,0 27,2 ± 2,7
640 to 800 29,1 ± 6,0 +34,
33,8
−88,
< 800 100 100
As a percentage of the total irradiance in the wavelength range up to 800 nm.

The radiant power shall be chosen to ensure that the conditions given in 7.1.1 are fulfilled.

The irradiance shall not deviate by more than 10 % from the average over the entire area occupied by

the specimens and references.

Ageing causes the spectral energy distribution and irradiance to change during the service life of

the xenon arc lamps and optical filters. Replacement of the lamps and filters in accordance with the

manufacturers' instructions, allows the energy distribution and irradiance to be maintained. The

irradiance can also be adjusted to keep it constant. Manufacturers who supply an exposure apparatus

for use with this document should ensure that the conditions specified in 5.2 and 7.1.1 are met.

5.2.3 Radiometer for monitoring the exposure conditions

Since the irradiance at the surface of the specimen is affected by lamp intensity, lamp geometry and

the specimen rack (lamp to specimen distance), repeatability and reproducibility of exposure shall be

ensured by a monitoring radiometer which permits exposure to specified levels of irradiance (radiant

flux per unit area) at a point in the plane of the specimen rack (see B.3 and C.3).

© ISO 2020 – All rights reserved 3
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ISO/FDIS 105-B06:2020(E)
5.2.4 Temperature sensors
5.2.4.1 Black-standard thermometer (BST) (for sets of conditions 1 to 3)

The black-standard thermometer shall consist of a plain stainless-steel plate, measuring about

70 mm × 40 mm and with a thickness of about 0,5 mm, whose temperature is measured by a thermal

resistor, with good heat-conducting properties fitted to the reverse side. The metal plate is fixed to a

plastic plate so that it is thermally insulated. It is coated with a black layer which has an absorption of at

least 95 %, even in the infrared region.
5.2.4.2 Black-panel thermometer (BPT) (for sets of conditions 5 and 6)

The black-panel thermometer shall consist of a metal plate approximately 70 mm wide, 150 mm

long, and 1 mm thick to which is fastened a thermal resistor whose sensitive portion is centred both

horizontally and vertically on the panel, the entire system being covered with a non-selective, infrared

absorbing black finish. The black finish shall have at least 95 % absorbance. The side of the panel not

facing the light source shall not be thermally insulated.
5.2.5 Opaque cardboard

This shall be of low sulfur content and free from fluorescent brightening agents, or other thin opaque

material, partially covering the specimens and references.
5.2.6 Grey scale for assessing change in colour
This shall be in accordance with ISO 105-A02.
5.2.7 Computerized spectral colour-measuring instrument
This is for evaluating the change in colour according to ISO 105-A05.
5.2.8 Polyester (PES) nonwoven fabric
2 2

This shall be at least 5 mm thick, with a mass per unit area of 100 g/m ± 5 g/m , for placing under the

specimens.
6 Preparation of specimens and exposure card

6.1 Test the specimens either with their own backing material or on a layer of polyester nonwoven

fabric (see 5.2.8). Unless agreed otherwise, the thickness of the underlying material shall be at least

5 mm. The limit specified in 6.4 shall be observed. The blue wool references shall be placed on white card

that does not contain fluorescent brightening agents.

6.2 Cut sections of at least 40 mm × 20 mm from flat materials and if necessary, attach them by their

narrow edges to white card that does not contain fluorescent brightening agents. For pile goods, carpets

and prints, cut the section to an appropriate size to include all colour components.

Wind yarns closely on to a card or mount on it in parallel lengths.

Form loose fibres into a nonwoven fabric or a fibrous web, of uniform thickness and surface and then

mount on the white card.

To facilitate handling, the specimens to be tested and the references may be mounted on one or more

cards as indicated in Figure 1.
4 © ISO 2020 – All rights reserved
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ISO/FDIS 105-B06:2020(E)

6.3 The specimens and references shall be of equal size and shape in order to avoid errors in

assessment due to overrating the visual contrast between exposed and unexposed parts on the larger

pattern as against the narrower references (see 8.1).

6.4 For thick specimens or those with an underlay, the distances from the light source to the surface

of the specimens, the references and the black-standard thermometer or black-panel thermometer shall

not differ by more than about 5 mm.
Figure 1 — Mounting for exposure method 2
7 Procedure
7.1 Exposure conditions
7.1.1 General

Five different sets of exposure conditions are permitted in terms of irradiance, black-standard

temperature and test-chamber temperature. The specimens and references shall be exposed under one

of the sets of temperature and humidity conditions given in Tables 3, 4 and 5 and according to Annex A.

© ISO 2020 – All rights reserved 5
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ISO/FDIS 105-B06:2020(E)
Table 3 — Exposure conditions set Nos. 1 to 3
Condition Set of conditions
3 1 2
IR component normal high high
Black-standard 100 ± 3 115 ± 3 +0
temperature (°C)
Test chamber 65 ± 3 48 ± 3 +0
temperature (°C)
a a
Test chamber 30 ± 5 20 ± 10 45 ± 10
relative humidity (%) no humidification
b b
Irradiance 45 to 162 70 to 90 —
2 c
(W/m ) 1,1 to 3,6

If agreed between the interested parties the test may be run without using humidification unit.

Broad-band measurement at 300 nm to 400 nm.
Narrow-band measurement at 420 nm.

The test method set of conditions No. 1 may occasionally give rise to temperatures at the surface of the

specimen that are considerably higher than those encountered in practice. In such cases, the method is

unsuitable.
Table 4 — Exposure cycle under set of conditions No. 5
Condition “Light on” period “Light off” period
Irradiance at 340 nm (W/m ) 0,55 ± 0,01 —
Test-chamber temperature (°C) 63 ± 2 38 ± 2
Black-panel temperature (°C) 89 ± 2 38 ± 2
Test chamber relative humidity (%) 50 ± 10 95 ± 5
Temperature of conditioning water (°C) 63 ± 4 40 ± 4
Exposure begins at the start of a 3,8 h “light on” period.
Table 5 — Exposure conditions set No. 6
Condition Value
2 a
Irradiance (W/m ) 162 (1 ± 10 %)
Test-chamber temperature (°C) 50 ± 3
Black-panel temperature (°C) 89 ± 2
Test chamber relative humidity (%) 50 ± 5
Broad-band measurement at 300 nm to 400 nm.

7.1.2 Fit the exposure cards or specimens into specimen holders and then into the testing apparatus,

with all other specimen holders containing either white cards that are half-covered by an opaque cover

with cutout, or exposure cards.

7.1.3 Carry out exposure under sets of conditions 1, 3, 5 and 6 in the non-turning mode, and that under

set no. 2 in the turning mode. Interrupt exposure only for inspection purposes, in which case remove the

specimen holder concerned from the apparatus.
6 © ISO 2020 – All rights reserved
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ISO/FDIS 105-B06:2020(E)
7.2 Setting the exposure conditions for set No. 3

Fit the testing apparatus with clean xenon arc lamps and clean filters. The light-measuring system shall

be calibrated according to the manufacturer's instructions.

Mount the exposure card with reference 6 (see 5.1.2) in a specimen holder and then in the apparatus,

with all other specimen holders containing white cards that are half-covered by an opaque cover with

cutout. Interrupt exposure only to inspect the exposure card. Continue exposure until a contrast

corresponding to rating 3 on the grey scale (see 5.2.6) is reached on reference 6 (see 5.1.2). By

2 2

experience, radiant exposure of (250 to 300) kJ/m at 420 nm corresponding to (11 to 13,2) MJ/m

between 300 nm and 400 nm is necessary.

The contrast on reference 6 is best measured colorimetrically with a spectrophotometer. If faded to

rating 3 of the grey scale, it corresponds to a value of 4,3 ± 0,4 DE* [Lab-Colour Space according to CIE,

Commission Internationale de l'Eclairage (CIELAB)] for D65/10°. Before measuring, place the reference

on unexposed card. When performing multiple exposures by method 3, inspect the specimens during

the individual exposure periods, making sure that any deviations from the rated value are compensated

during subsequent exposures, so that the sum of the deviations at the end of the series of exposures

does not exceed ± 0,4 DE* (CIELAB). Compensation is achieved by adjusting the exposure time or radiant

exposure. If agreed between the interested parties, the exposure may be continued until a contrast

corresponding to rating 2 on the grey scale is reached on reference 6. This means twice the necessary

radiant exposure.

NOTE 4,3 ± 0,4 DE* value for blue wool is the equivalent of a 3,4 ± 0,4 DE* value for the grey scale for

assessing the change in colour. In other words, both equal a colour change of grey scale 3.

7.3 Exposure methods
7.3.1 General

Expose the specimen (or group of specimens) and the required references simultaneously under the

desired conditions, in such a manner and for such a time as is necessary to fully evaluate the colour

fastness of each specimen relative to that of the references by progressively covering both the specimens

and exposed references during the test.

7.3.2 Exposure Method 1 (end point determined by change in colour in the specimen)

This method is considered the most exact and should be used in cases of dispute over the numerical

rating. The basic feature is the control of the exposure periods by inspection of the specimen and

therefore, one set of blue wool references is required for each specimen under test.

NOTE This exposure method is not used by the automotive industry and has therefore been omitted from

this document. For a detailed description, see ISO 105-B02: 2014, 8.3.2.
7.3.3 Exposure Method 2 (end point determined by change in colour of reference)

Expose the specimens, half-covered by an opaque cover with cutout, and the references using the

conditions given in 7.1.1. Monitor the effect of the light by frequently checking the references. Continue

exposure until a contrast corresponding to rating 3 or rating 2 on the grey scale for assessing change

in colour is observed between the exposed and unexposed parts of reference 6. Rating 3 on grey scale

corresponds to a value of 3,4 ± 0,4 DE* (CIELAB) for D65/10°.
7.3.4 Exposure Method 3 (end point determined on the ageing test of 4.2)

Using exclusively set of exposure conditions No. 3 in 7.1.1, subject the specimens to a prescribed number

of exposures in accordance with the specification in 7.2. Each exposure requires a new reference 6. The

minimum specimen size for multiple exposures depends on the subsequent assessment method.

© ISO 2020 – All rights reserved 7
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ISO/FDIS 105-B06:2020(E)
7.3.5 Exposure Method 4 (end point determined on radiant energy)

Expose the specimens under set of conditions No. 3, 5 or 6 (see 7.1.1) to a specified level of radiant

exposure at a central wavelength of 340 nm, 420 nm or broad-band wavelength of 300 nm to 400 nm.

The exact level of radiant exposure will depend on the material and the application and shall be agreed

on by the interested parties.
8 Assessment of colour fastness to light

8.1 Remove all the covers from the test specimens and references thus revealing, depending on the

method used, one or two areas which have been exposed
...

NORME ISO
INTERNATIONALE 105-B06
Troisième édition
2020-06
Textiles — Essais de solidité des
coloris —
Partie B06:
Solidité des coloris et vieillissement
à la lumière artificielle à hautes
températures: Essai avec lampe à arc
au xénon
Textiles — Tests for colour fastness —
Part B06: Colour fastness and ageing to artificial light at high
temperatures: Xenon arc fading lamp test
Numéro de référence
ISO 105-B06:2020(F)
ISO 2020
---------------------- Page: 1 ----------------------
ISO 105-B06:2020(F)
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2020

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publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,

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être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.

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Publié en Suisse
ii © ISO 2020 – Tous droits réservés
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ISO 105-B06:2020(F)
Sommaire Page

Avant-propos ..............................................................................................................................................................................................................................iv

1 Domaine d’application ................................................................................................................................................................................... 1

2 Références normatives ................................................................................................................................................................................... 1

3 Termes et définitions ....................................................................................................................................................................................... 1

4 Principe .......................................................................................................................................................................................................................... 2

4.1 Essai de solidité des coloris à la lumière .......................................................................................................................... 2

4.2 Essai de vieillissement ..................................................................................................................................................................... 2

5 Tissus témoins et appareillage .............................................................................................................................................................. 2

5.1 Tissus témoins ......................................................................................................................................................................................... 2

5.1.1 Généralités ............................................................................................................................................................................ 2

5.1.2 Tissus témoins 1 à 8 ...................................................................................................................................................... 2

5.1.3 Tissus témoins L2 et L4 ............................................................................................................................................. 3

5.2 Appareillage............................................................................................................................................................................................... 3

5.2.1 Appareillage d’exposition ........................................................................................................................................ 3

5.2.2 Source de lumière optique et dispositif filtrant .................................................................................... 3

5.2.3 Radiomètres de surveillance des conditions d’exposition .......................................................... 4

5.2.4 Capteurs de température .......................................................................................................................................... 4

5.2.5 Carton opaque .................................................................................................................................................................... 4

5.2.6 Échelle de gris pour l’évaluation de la dégradation .......................................................................... 4

5.2.7 Appareil de mesure de la couleur informatisé ....................................................................................... 4

5.2.8 Nontissé en polyester (PES) ................................................................................................................................... 4

6 Préparation des éprouvettes et carte d’exposition .......................................................................................................... 4

7 Mode opératoire.................................................................................................................................................................................................... 5

7.1 Conditions d’exposition ................................................................................................................................................................... 5

7.2 Réglage des conditions d’exposition pour la gamme n °3 ................................................................................ 6

7.3 Méthodes d’exposition ..................................................................................................................................................................... 7

7.3.1 Généralités ............................................................................................................................................................................ 7

7.3.2 Méthode d’exposition 1 (point final déterminé par la dégradation de

l’éprouvette) ........................................................................................................................................................................ 7

7.3.3 Méthode d’exposition 2 (point final déterminé par la dégradation d’un

tissu témoin)........................................................................................................................................................................ 7

7.3.4 Méthode d’exposition 3 (point final fondé sur l’essai de vieillissement

spécifié en 4.2) ................................................................................................................................................................... 7

7.3.5 Méthode d’exposition 4 (point final fondé sur l’énergie rayonnante) ............................... 8

8 Évaluation de la solidité des coloris à la lumière ............................................................................................................... 8

9 Rapport d’essai ....................................................................................................................................................................................................... 9

Annexe A (normative) Méthodes d’exposition et types de filtre optique ....................................................................10

Annexe B (normative) Appareillage de détermination de la solidité des coloris et du

vieillissement équipé de lampes à arc au xénon à refroidissement par air ........................................11

Annexe C (normative) Appareillage de détermination de la solidité des coloris et du

vieillissement équipé de lampes à arc au xénon à refroidissement par eau ......................................13

Annexe D (normative) Recommandations relatives au déroulement de l’essai conforme à la

gamme de conditions n °5 (en complément des exigences spécifiées à l’Annexe C) ..................15

Bibliographie ...........................................................................................................................................................................................................................17

© ISO 2020 – Tous droits réservés iii
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ISO 105-B06:2020(F)
Avant-propos

L’ISO (Organisation internationale de normalisation) est une fédération mondiale d’organismes

nationaux de normalisation (comités membres de l’ISO). L’élaboration des Normes internationales est

en général confiée aux comités techniques de l’ISO. Chaque comité membre intéressé par une étude

a le droit de faire partie du comité technique créé à cet effet. Les organisations internationales,

gouvernementales et non gouvernementales, en liaison avec l’ISO participent également aux travaux.

L’ISO collabore étroitement avec la Commission électrotechnique internationale (IEC) en ce qui

concerne la normalisation électrotechnique.

Les procédures utilisées pour élaborer le présent document et celles destinées à sa mise à jour sont

décrites dans les Directives ISO/IEC, Partie 1. Il convient, en particulier de prendre note des différents

critères d’approbation requis pour les différents types de documents ISO. Le présent document a été

rédigé conformément aux règles de rédaction données dans les Directives ISO/IEC, Partie 2 (voir www

.iso .org/ directives).

L’attention est attirée sur le fait que certains des éléments du présent document peuvent faire l’objet de

droits de propriété intellectuelle ou de droits analogues. L’ISO ne saurait être tenue pour responsable

de ne pas avoir identifié de tels droits de propriété et averti de leur existence. Les détails concernant

les références aux droits de propriété intellectuelle ou autres droits analogues identifiés lors de

l’élaboration du document sont indiqués dans l’Introduction et/ou dans la liste des déclarations de

brevets reçues par l’ISO (voir www .iso .org/ brevets).

Les appellations commerciales éventuellement mentionnées dans le présent document sont données

pour information, par souci de commodité, à l’intention des utilisateurs et ne sauraient constituer un

engagement.

Pour une explication de la nature volontaire des normes, la signification des termes et expressions

spécifiques de l’ISO liés à l’évaluation de la conformité, ou pour toute information au sujet de l’adhésion

de l’ISO aux principes de l’Organisation mondiale du commerce (OMC) concernant les obstacles

techniques au commerce (OTC), voir le lien suivant: www .iso .org/ iso/ fr/ avant-propos . ht m l .

Le présent document a été élaboré par le comité technique ISO/TC 38, Textiles, sous-comité SC 1, Essais

des textiles colorés et des colorants, en collaboration avec le comité technique CEN/TC 248, Textiles, du

Comité européen de normalisation (CEN), conformément à l’Accord de coopération technique entre

l’ISO et le CEN (Accord de Vienne).

Cette troisième édition annule et remplace la deuxième édition (ISO 105-B06: 1996), qui a fait l’objet

d’une révision technique. Il comprend également l’Amendement ISO 105-B06: 1998/ Amd .1: 2002.

Les principales modifications par rapport à l’édition précédente sont les suivantes:

— les dates de références normatives ont été supprimées;
— l’appareillage à support plat d’essai a été introduit.

Une liste de toutes les parties de la série ISO 105 se trouve sur le site web de l’ISO.

Il convient que l’utilisateur adresse tout retour d’information ou toute question concernant le présent

document à l’organisme national de normalisation de son pays. Une liste exhaustive desdits organismes

se trouve à l’adresse www .iso .org/ fr/ members .html.
iv © ISO 2020 – Tous droits réservés
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NORME INTERNATIONALE ISO 105-B06:2020(F)
Textiles — Essais de solidité des coloris —
Partie B06:
Solidité des coloris et vieillissement à la lumière
artificielle à hautes températures: Essai avec lampe à arc
au xénon
1 Domaine d’application

Le présent document spécifie une méthode pour déterminer la solidité des coloris et les propriétés

de vieillissement de tous les types et formes de textiles teints et imprimés et/ou autres supports

organiques sous l’action d’une source de lumière artificielle représentative de la lumière naturelle du

jour (D65) et sous l’action simultanée de la chaleur. Parmi les cinq différentes gammes de conditions

d’exposition spécifiées (voir 7.1.1), quatre utilisent D65 et la cinquième, une transmission spectrale de

longueur d’onde un peu inférieure. La méthode d’essai tient particulièrement compte des conditions

d’éclairage et de chaleur de l’intérieur d’un véhicule à moteur.

Les cinq différentes gammes de conditions peuvent produire différents résultats d’essai à l’aide des

différents dispositifs de filtration optique spécifiés. Les résultats obtenus pour des essais réalisés à

l’aide d’appareillages (types d’instruments) différents pour une même gamme de conditions et un même

dispositif de filtration optique ne sont pas comparables, car des performances comparables n’ont pas

été validées.
2 Références normatives

Les documents suivants sont cités dans le texte de sorte qu’ils constituent, pour tout ou partie de leur

contenu, des exigences du présent document. Pour les références datées, seule l’édition citée s’applique.

Pour les références non datées, la dernière édition du document de référence s’applique (y compris les

éventuels amendements).

ISO 105-A01, Textiles — Essais de solidité des coloris — Partie A01: Principes généraux pour effectuer

les essais

ISO 105-A02, Textiles — Essais de solidité des teintures — Partie A02: Échelle de gris pour l'évaluation des

dégradations

ISO 105-A05, Textiles — Essais de solidité des teintures — Partie A05: Évaluation instrumentale du

changement de couleur pour conversion en degrés de l'échelle de gris

ISO 105-B02, Textiles — Essais de solidité des coloris — Partie B02: Solidité des coloris à la lumière

artificielle: Lampe à arc au xénon

ISO 105-B05, Textiles — Essais de solidité des teintures — Partie B05: Détection et évaluation de la

phototropie
3 Termes et définitions
Aucun terme n’est défini dans le présent document.
© ISO 2020 – Tous droits réservés 1
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ISO 105-B06:2020(F)

L’ISO et l’IEC tiennent à jour des bases de données terminologiques destinées à être utilisées en

normalisation, consultables aux adresses suivantes:

— ISO Online browsing platform: disponible à l’adresse https:// www .iso .org/ obp;

— IEC Electropedia: disponible à l’adresse http:// www .electropedia .org/ .
4 Principe
4.1 Essai de solidité des coloris à la lumière

Une des éprouvettes à soumettre à l’essai est exposée à la lumière artificielle, dans les conditions

spécifiées, à côté d’une gamme de tissus témoins de laine teinte en bleu. La solidité des coloris doit être

évaluée après l’exposition de l’éprouvette à la quantité spécifiée d’énergie rayonnante, en comparant

la dégradation de l’éprouvette à celle des tissus témoins utilisés ou à l’échelle de gris, conformément à

l’ISO 105-A02, ou encore au moyen d’un instrument de mesurage des couleurs conforme à l’ISO 105-A05.

4.2 Essai de vieillissement

Une des éprouvettes à soumettre à l’essai est exposée à la lumière artificielle, dans les conditions

spécifiées et conjointement avec un tissu témoin 6 de laine teinte en bleu (voir l’ISO 105-B02). La

dégradation de l’éprouvette doit être évaluée par rapport à l’échelle de gris, conformément à l’ISO 105-

A02, ou au moyen d’un instrument de mesurage des couleurs conformément à l’ISO 105-A05. Il est

permis d’étudier également d’autres critères de vieillissement tels que les propriétés mécaniques.

Une attention particulière doit être portée aux principes de spécification et d’exécution des essais, ainsi

qu’à ceux d’évaluation des résultats, conformément à l’ISO 105-A01.
5 Tissus témoins et appareillage
5.1 Tissus témoins
5.1.1 Généralités

Il est permis d’utiliser deux gammes différentes de tissus témoins de laine teinte en bleu, mais ces deux

gammes ne sont pas interchangeables.
5.1.2 Tissus témoins 1 à 8

Les tissus témoins de laine teinte en bleu utilisés et fabriqués en Europe sont identifiés par la désignation

numérique 1 à 8. Ces tissus témoins sont des matériaux de laine teintés en bleu avec les colorants

énumérés dans le Tableau 1. Ils s’échelonnent entre 1 (solidité des coloris très faible) et 8 (solidité des

coloris très élevée) de sorte que chaque tissu témoin a une solidité de coloris environ deux fois plus

importante que le tissu désigné par le chiffre immédiatement inférieur (voir Tableau 1).

Tableau 1 — Colorants pour tissus témoins 5 à 8 de laine teinte en bleu
Colorant (désignation selon le Colour
Tissu témoin
[3]
Index)
5 CI acid blue 47
6 CI acid blue 23
7 CI solubilized vat blue 5
8 CI solubilized vat blue 8
NOTE Les tissus témoins 1 à 4 ne sont pas applicables à cet essai.
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ISO 105-B06:2020(F)
5.1.3 Tissus témoins L2 et L4

Deux tissus témoins de laine teinte en bleu mis au point et fabriqués aux États-Unis font partie d’une

série de huit tissus témoins identifiés par la lettre L suivie de la désignation numérique. Ces tissus

témoins ont pour but de déterminer si la lampe à arc au xénon fonctionne dans la gamme désirée

concernant les conditions d’exposition n° 5 (voir D.4).
5.2 Appareillage
5.2.1 Appareillage d’exposition

L’appareillage d’exposition se compose essentiellement d’une chambre d’essai climatique faite d’un

matériau résistant à la corrosion et contenant une source de lumière optique, d’un dispositif filtrant et

des porte-éprouvettes.
5.2.2 Source de lumière optique et dispositif filtrant

Une ou plusieurs lampes à arc au xénon servent de source de lumière optique. La lumière utilisée pour

déterminer la solidité à la lumière à haute température doit être filtrée. Des dispositifs de filtration de

lumière optique sont employés à cet effet. Conformément aux Annexes B et C, tant les filtres absorbants

que les filtres absorbants et réfléchissants combinés doivent être utilisés, selon l’instrument d’essai

employé. Quel que soit le type de filtre, les conditions de répartition spectrale de l’énergie à la surface

de l’éprouvette, répertoriées dans le Tableau 2, doivent être respectées.
Tableau 2 — Éclairement énergétique spectral
Éclairement énergétique relatif
Longueur d’onde
nm Gamme de conditions d’exposition
1, 2, 3 et 6 5
290 0 0,07
300 0,05 0,25
de 280 à 320 0,1 1,1 ± 0,5
de 320 à 360 3,0 ± 0,85 4,1 ± 1,17
de 360 à 400 +20, +23,
57, 64,
−13, −15,
de 400 à 520 +30, 27,3 ± 2,6
32,2
−50,
de 520 à 640 30 ± 3,0 27,2 ± 2,7
de 640 à 800 29,1 ± 6,0 +34,
33,8
−88,
< 800 100 100

Exprimé comme un pourcentage de l’éclairement énergétique total dans les longueurs d’onde allant jusqu’à 800 nm.

La puissance de rayonnement choisie doit être telle que les conditions d’exposition spécifiées en 7.1.1

soient remplies.

L’éclairement énergétique ne doit pas s’écarter de plus de 10 % de la moyenne sur l’ensemble de la

surface occupée par les éprouvettes et les tissus témoins.

En raison du vieillissement, la répartition spectrale de l’énergie et l’éclairement énergétique varient

au cours de la durée de vie des lampes à arc au xénon et des filtres optiques. Le remplacement des

lampes et des filtres, conformément aux instructions du fabricant, permet de conserver une répartition

de l’énergie et un éclairement énergétique constants. Il est aussi possible de régler l’éclairement

énergétique afin qu’il demeure constant. Il convient que les fabricants qui fournissent un appareillage

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ISO 105-B06:2020(F)

d’exposition à utiliser avec le présent document garantissent que les conditions spécifiées en 5.2 et 7.1.1

sont respectées.
5.2.3 Radiomètres de surveillance des conditions d’exposition

L’éclairement énergétique à la surface de l’éprouvette étant affecté par l’intensité de la lampe, ainsi que

par sa géométrie et celle du châssis porte-éprouvette (distance lampe-éprouvette), la répétabilité et la

reproductibilité de l’exposition doivent être assurées par un radiomètre de surveillance qui permet une

exposition à des niveaux d’éclairement énergétique spécifiés (flux énergétique par unité de surface) en

un point du plan du porte-éprouvette (voir B.3 et C.3).
5.2.4 Capteurs de température

5.2.4.1 Thermomètre au noir de référence (TNR) (pour les gammes de conditions 1 à 3)

Le thermomètre au noir de référence doit être constitué d’une plaque plane en acier inoxydable

d’environ 70 mm × 40 mm, d’une épaisseur d’environ 0,5 mm, dont la température est mesurée par

une thermistance très conductrice de la chaleur et attachée au dos de la plaque. La plaque métallique

est fixée à une plaque de plastique de façon à être isolée thermiquement. Elle est recouverte d’un

revêtement noir qui a une absorption d’au moins 95 %, même dans la gamme des infrarouges.

5.2.4.2 Thermomètre à panneau noir (TPN) (pour la gamme de conditions 5 et 6)

Le thermomètre à panneau noir doit être constitué d’un panneau métallique d’environ 70 mm de largeur,

150 mm de longueur et 1 mm d’épaisseur sur laquelle est fixée une thermistance dont la partie sensible

est centrée horizontalement et verticalement, l’ensemble étant recouvert d’une couche de finition noire

qui absorbe les rayons infrarouges de façon non sélective. La couche noire doit avoir une absorption

d’au moins 95 %. La face du panneau qui n’est pas exposée à la source de lumière ne doit pas être isolée

thermiquement.
5.2.5 Carton opaque

Il doit s’agir d’un carton opaque à faible teneur en soufre et ne contenant aucun agent de blanchiment

fluorescent, ou tout autre matériau opaque de faible épaisseur, recouvrant partiellement les éprouvettes

et tissus témoins.
5.2.6 Échelle de gris pour l’évaluation de la dégradation
Elle doit être conforme à l’ISO 105-A02.
5.2.7 Appareil de mesure de la couleur informatisé
Il sert à évaluer la dégradation conformément à l’ISO 105-A05.
5.2.8 Nontissé en polyester (PES)

Il doit être d’au moins 5 mm d’épaisseur et (100 ± 5) g/m de masse surfacique, et est destiné à être

placé sous les éprouvettes.
6 Préparation des éprouvettes et carte d’exposition

6.1 Soumettre les éprouvettes à l’essai sur leur support ou sur une couche de nontissé en polyester

(voir 5.2.8). Sauf indication contraire, l’épaisseur minimale du substrat doit être au moins de 5 mm. La

limite spécifiée en 6.4 doit être respectée. Les tissus témoins de laine teinte en bleu doivent être placés

sur une carte blanche ne contenant aucun agent de blanchiment fluorescent.
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ISO 105-B06:2020(F)

6.2 Découper des morceaux d’au moins 40 mm × 20 mm à partir des matériaux posés à plat et, si

nécessaire, les fixer dans la largeur à la carte blanche ne contenant aucun agent de blanchiment

fluorescent. Dans le cas de tapis ou d’étoffes imprimées ou velours, découper des parties d’une taille

adéquate permettant d’inclure tous les constituants des couleurs.

Enrouler les fils et les placer, serrés, côte à côte sur une carte ou les y fixer en parallèle dans le sens de

la longueur.

Rassembler les fibres en bourre en un nontissé ou en une nappe fibreuse d’épaisseur et de surface

uniformes, puis fixer ce dernier ou cette dernière sur la carte blanche.

Afin de faciliter la manipulation, il est permis de monter les éprouvettes à soumettre à l’essai et les

tissus témoins sur une ou plusieurs cartes, comme indiqué à la Figure 1.

6.3 Les éprouvettes et tissus témoins doivent avoir les mêmes taille et forme, afin d’éviter des erreurs

de jugement qui seraient dues à une surévaluation du contraste visuel entre les parties exposées et non

exposées d’un échantillon plus grand placé à côté de tissus témoins plus étroits (voir 8.1).

6.4 Dans le cas d’éprouvettes épaisses ou pourvues d’un substrat, les distances entre la source de

lumière et la surface des éprouvettes, les tissus témoins et le thermomètre au noir de référence ou le

thermomètre à panneau noir ne doivent pas varier de plus d’environ 5 mm.
Figure 1 — Montage pour la méthode d’exposition 2
7 Mode opératoire
7.1 Conditions d’exposition
7.1.1 Généralités

En matière d’éclairement énergétique, de température de l’étalon noir et de température de chambre

d’essai, cinq différentes gammes de conditions d’exposition sont autorisées. Les éprouvettes et les tissus

témoins doivent être exposés dans les conditions de l’une des gammes de température et d’humidité

données dans les Tableaux 3, 4 et 5 et conformément à l’Annexe A.
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ISO 105-B06:2020(F)
Tableau 3 — Gammes de conditions d’exposition n 1 à 3
Condition Gamme de conditions
3 1 2
Composante infrarouge de normale élevée élevée
l’éclairement
Température du noir de 100 ± 3 115 ± 3 +0
référence (°C)
Température de la 65 ± 3 48 ± 3 +0
chambre d’essai (°C)
a a
Humidité relative de la 30 ± 5 20 ± 10 45 ± 10
chambre d’essai (%) sans humidification
b b
Éclairement énergétique de 45 à 162 de 70 à 90 —
2 c
(W/m ) de 1,1 à 3,6

En cas d’accord des parties intéressées, l’essai peut être effectué sans recourir à un dispositif d’humidification.

Mesurage de bande large de 300 nm à 400 nm.
Mesurage de bande étroite à 420 nm.

La gamme de conditions d’exposition n 1 de la méthode d’essai peut occasionnellement conduire, à

la surface de l’éprouvette, à des températures nettement plus élevées que celles rencontrées dans la

pratique. La méthode ne convient pas dans de tels cas.
Tableau 4 — Cycle d’exposition dans la gamme de conditions n 5
Condition Période de lumière Période d’obscurité
Éclairement énergétique à 340 nm (W/m ) 0,55 ± 0,01 —
Température de la chambre d’essai (°C) 63 ± 2 38 ± 2
Température du panneau noir (°C) 89 ± 2 38 ± 2
Humidité relative de la chambre d’essai (%) 50 ± 10 95 ± 5
Température de l’eau de conditionnement (°C) 63 ± 4 40 ± 4
L’exposition commence au début d’une période de lumière de 3,8 h.
Tableau 5 — Gammes de conditions d’exposition n 6
Condition Valeur
2 a
Éclairement énergétique (W/m ) 162 (1 ± 10 %)
Température de la chambre d’essai (°C) 50 ± 3
Température du panneau noir (°C) 89 ± 2
Humidité relative de la chambre d’essai (%) 50 ± 5
Mesurage de bande large de 300 nm à 400 nm.

7.1.2 Placer les cartes d’exposition ou les éprouvettes dans des porte-éprouvettes, puis dans

l’appareillage d’essai, tous les autres porte-éprouvettes contenant soit des cartes blanches à demi-

recouvertes par un cache opaque disposant d’une ouverture, soit des cartes d’exposition.

7.1.3 Procéder à l’exposition en mode non rotatif dans les gammes de conditions d’exposition 1, 3, 5 et

6 et en mode rotatif dans la gamme de conditions d’exposition 2. N’interrompre l’exposition qu’à des fins

d’inspection, auquel cas retirer de l’appareillage les porte-éprouvettes concernés.

7.2 Réglage des conditions d’exposition pour la gamme n °3

Équiper l’appareillage d’essai de lampes à arc au xénon et de filtres propres. Le système de mesurage de

la lumière doit être étalonné conformément aux instructions du fabricant.
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ISO 105-B06:2020(F)

Installer la carte d’exposition avec le tissu témoin 6 (voir 5.1.2) sur un porte-éprouvette, puis dans

l’appareillage, tous les autres porte-éprouvettes contenant des cartes blanches à demi-recouvertes par

un cache opaque disposant d’une ouverture. N’interrompre l’exposition que pour inspecter la carte

d’exposition. Poursuivre l’exposition jusqu’à obtenir un contraste correspondant au degré 3 de l’échelle

de gris (voir 5.2.6) sur le tissu témoin 6 (voir 5.1.2). L’expérience a montré qu’une exposition énergétique

2 2 2 2

de 250 kJ/m à 300 kJ/m à 420 nm était nécessaire, soit 11 MJ/m à 13,2 MJ/m pour 300 nm à 400 nm.

C’est avec un spectrophotomètre que le contraste sur le tissu témoin 6 se mesure le mieux en matière de

colorimétrie. Si le niveau baisse à 3 sur l’échelle de gris, cela correspond à une valeur de (4,3 ± 0,4) DE*

[espace chromatique L*a*b* conformément à la CIE, Commission Internationale de l’Eclairage (CIELAB)]

pour D65/10°. Avant le mesurage, placer le tissu témoin sur une carte non exposée. Si plusieurs

expositions sont effectuées conformément à la méthode 3, contrôler les éprouvettes à chaque cycle

d’exposition et s’assurer que toute divergence par rapport à la valeur nominale est compensée au cours

des cycles suivants, de sorte qu’une fois les séries d’exposition terminées, la somme des divergences ne

dépasse pas ± 0,4 DE* (CIELAB). La compensation s’obtient en ajustant les temps ou doses d’exposition

énergétique. En cas d’accord entre les parties intéressées, il est permis de poursuivre l’exposition

jusqu’à obtenir, sur le tissu témoin 6, un contraste correspondant au degré 2 sur l’échelle de gris. Cela

correspond au double de l’exposition énergétique nécessaire.

NOTE Une valeur de (4,3 ± 0,4) DE* pour la laine teinte en bleu équivaut à une valeur de (3,4 ± 0,4) DE*

pour l’échelle de gris lors de l’évaluation de la dégradation. Autrement dit, les deux valeurs équivalent à une

dégradation de degré 3 sur l’échelle de gris.
7.3 Méthodes d’exposition
7.3.1 Généralités
Expose
...

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