SIST EN ISO 105-B06:2004
(Main)Textiles - Tests for colour fastness - Part B06: Colour fastness and ageing to artificial light at high temperatures: Xenon arc fading lamp test (ISO 105-B06:1998, including Amendment 1:2002)
Textiles - Tests for colour fastness - Part B06: Colour fastness and ageing to artificial light at high temperatures: Xenon arc fading lamp test (ISO 105-B06:1998, including Amendment 1:2002)
This standard specifies a method for determination of colour fastness to light at high temperatures, which is particularly relevant to automotive vehicles.
Textilien - Farbechtheitsprüfungen - Teil B06: Farbechtheit und Alterung gegen künstliches Licht bei hohen Temperaturen: Prüfung mit der Xenonbogenlampe (ISO 105-B06:1998, einschließlich Änderung 1:2002)
Dieser Teil von ISO 105 beschreibt ein Prüfverfahren zur Bestimmung der Widerstandsfähigkeit der Farbe und des Alterungsverhaltens für alle Arten und Formen von gefärbten und bedruckten Textilien und/oder anderen organischen Substraten gegen die gleichzeitige Einwirkung von künstlichem Licht, das dem natürlichen Tageslicht (D65) entspricht, und Wärme. Von den fünf verschiedenen beschriebenen Expositionsbedingungen (siehe 6.1) verwenden vier D65 und die fünfte arbeitet mit einer etwas niedrigeren Filterkante. Die Expositionsbedingungen berücksichtigen besonders die Licht- und Temperaturbedingungen, wie sie im Inneren eines Kraftfahrzeugs auftreten.
Es ist bekannt, dass die fünf verschiedenen beschriebenen Expositionsbedingungen zu ähnlichen, aber nicht zwingend gleichen Ergebnissen führen.
Textiles - Essais de solidité des teintures - Partie B06: Solidité et vieillissement des teintures a la lumiere artificielle a hautes températures: Essai avec lampe a arc au Xénon (ISO 105-B06:1998, Amendement 1:2002 inclus)
Tekstilije - Preskušanje barvne obstojnosti - Del B06: Barvna obstojnost in staranje na umetni svetlobi pri visokih temperaturah: preskus s pojemajočo obločno ksenonsko svetilko (ISO 105-B06:1998, vključno z Dopolnilom 1:2002)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 105-B06:2004
01-julij-2004
7HNVWLOLMH3UHVNXãDQMHEDUYQHREVWRMQRVWL'HO% %DUYQDREVWRMQRVWLQ
VWDUDQMHQDXPHWQLVYHWORELSULYLVRNLKWHPSHUDWXUDK SUHVNXVVSRMHPDMRþR
REORþQRNVHQRQVNRVYHWLONR ,62% YNOMXþQR]'RSROQLORP
Textiles - Tests for colour fastness - Part B06: Colour fastness and ageing to artificial
light at high temperatures: Xenon arc fading lamp test (ISO 105-B06:1998, including
Amendment 1:2002)
Textilien - Farbechtheitsprüfungen - Teil B06: Farbechtheit und Alterung gegen
künstliches Licht bei hohen Temperaturen: Prüfung mit der Xenonbogenlampe (ISO 105-
B06:1998, einschließlich Änderung 1:2002)
Textiles - Essais de solidité des teintures - Partie B06: Solidité et vieillissement des
teintures a la lumiere artificielle a hautes températures: Essai avec lampe a arc au
Xénon (ISO 105-B06:1998, Amendement 1:2002 inclus)
Ta slovenski standard je istoveten z: EN ISO 105-B06:2004
ICS:
59.080.01 Tekstilije na splošno Textiles in general
SIST EN ISO 105-B06:2004 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 105-B06:2004
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SIST EN ISO 105-B06:2004
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SIST EN ISO 105-B06:2004
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SIST EN ISO 105-B06:2004
INTERNATIONAL ISO
STANDARD 105-B06
Second edition
1998-11-01
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 teintures —
Partie B06: Solidité et vieillissement des teintures à la lumière artificielle à
hautes températures: Essai avec lampe à arc au xénon
A
Reference number
ISO 105-B06:1998(E)
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SIST EN ISO 105-B06:2004
ISO 105-B06:1998(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.
International Standards are drafted in accordance with the rules given in
the ISO/IEC Directives, Part 3.
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 was prepared by Technical Committee
ISO/TC 38, Textiles, Subcommittee SC 1, Tests for coloured textiles and
colorants.
ISO 105 was previously published in thirteen “parts”, each designated by a
letter (e.g. “Part A”), with publication dates between 1978 and 1985. Each
part contained a series of “sections”, each designated by the respective
part letter and by a two-digit serial number (e.g. “Section A01”). These
sections are now being republished as separate documents, themselves
designated “parts” but retaining their earlier alphanumeric designations. A
complete list of these parts is given in ISO 105-A01.
This second edition cancels and replaces the first edition (ISO 105-
B06:1992), which has been technically revised.
Annexes A to D form an integral part of this part of ISO 105.
© ISO 1998
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronic or mechanical, including photocopying and
microfilm, without permission in writing from the publisher.
International Organization for Standardization
Case postale 56 • CH-1211 Genève 20 • Switzerland
Internet iso@iso.ch
Printed in Switzerland
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SIST EN ISO 105-B06:2004
©
INTERNATIONAL STANDARD ISO ISO 105-B06:1998(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 part of ISO 105 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 four different sets of
exposure conditions specified (see 6.1), three use D65, and the fourth 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 four different sets of conditions specified are known to give similar but not necessarily identical results.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of
this part of ISO 105. For dated references, subsequent amendments to, or revisions of, any of these publications do
not apply. However, parties to agreements based on this part of ISO 105 are encouraged to investigate the
possibility of applying the most recent editions of the normative documents indicated below. For undated
references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain
registers of currently valid International Standards.
ISO 105-A01:1994,
Textiles — Tests for colour fastness — Part A01: General principles of testing.
ISO 105-A02:1993, Textiles — Tests for colour fastness — Part A02: Grey scale for assessing change in colour.
ISO 105-A05:1996, Textiles — Tests for colour fastness — Part A05: Instrumental assessment of change in colour
for determination of grey scale rating.
ISO 105-B02:1994, Textiles — Tests for colour fastness — Part B02: Colour fastness to artificial light: Xenon arc
fading lamp test.
ISO 105-B05:1993, Textiles — Tests for colour fastness — Part B05: Detection and assessment of photochromism.
3 Principle
3.1 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 is 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.
1
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3.2 Ageing test
A specimen to be tested, together with reference 6 (see ISO 105-B02), is exposed to artificial light under prescribed
conditions. The change in colour of the specimen is 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.
NOTE Attention should be paid to the principles for specifying and carrying out the tests, and for evaluating the test results
according to ISO 105-A01.
4 Reference materials and apparatus
4.1 Reference materials
Two different sets of blue wool references may be used. The two sets of references are not interchangeable.
4.1.1 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
a
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.
a
The Colour Index (Third edition) is published by the Society of Dyers and Colourists,
P.O. Box 244, Perkin House, 82 Grattan Road, Bradford BD1 2JB, West Yorkshire, United
Kingdom and by the American Association of Textile Chemists and Colorists, P.O. Box 12215,
Research Triangle Park, North Carolina 27709, USA.
4.1.2 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).
4.2 Apparatus
4.2.1 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.
4.2.2 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 are used (see annexes B and C). 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.
2
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ISO 105-B06:1998(E)
Table 2 — Spectral irradiance
a
Wavelength
Relative irradiance
nm
%
Set of exposure conditions
1, 2 and 3 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 5,7 + 2,0 6,4 + 2,3
- 1,3 - 1,5
400 to 520
32,2 – 3,1 27,3 – 2,6
520 to 640 30,0 + 3,0
27,2 – 2,7
- 5,1
640 to 800 33,8 + 3,4
29,1 – 6,0
- 8,8
. 800 100 100
a
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 6.1 are fulfilled.
The irradiance shall not deviate by more than 10 % from the average over the entire area occupied by the
specimens and references.
NOTE 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 part of ISO 105 should ensure that the conditions specified in 4.2 and 6.1 are met.
4.2.3 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 (incident energy per unit area) at a point in the
plane of the specimen rack (see B.3 and C.3).
4.2.4 Temperature sensors
4.2.4.1 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 3 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.
4.2.4.2 Black-panel thermometer (BPT) (for set of conditions No. 5)
The black-panel thermometer shall consist of a metal plate at least 70 mm 3 150 mm 3 1 mm to which is fastened
a thermal resistor whose sensitive portion is centred both horizontally and vertically on the panel, the entire system
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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.
4.2.5 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.
4.2.6 Grey scale for assessing change in colour
This shall be in accordance with ISO 105-A02.
4.2.7 Computerized spectral colour-measuring instrument
This is for evaluating the change in colour according to ISO 105-A05.
4.2.8 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.
5 Preparation of specimens and exposure card
5.1 Test the specimens either with their own backing material or on a layer of polyester nonwoven fabric (see
4.2.8). Unless agreed otherwise, the thickness of the underlying material shall be at least 5 mm. The limit specified
in 5.4 shall be observed. The blue wool references shall be placed on white card that does not contain fluorescent
brightening agents.
5.2 Cut sections of at least 40 mm 3 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
sections somewhat larger.
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.
5.3 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 7.1).
5.4 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.
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Figure 1 — Mounting for exposure method 2
6 Procedure
6.1 Exposure conditions
Four different sets of exposure conditions are permitted in terms of irradiance, black-standard temperature and test-
chamber temperature. The specimens and references are exposed under one of the sets of temperature and
humidity conditions given in Tables 3 and 4.
Table 3 — Exposure conditions set Nos. 1 to 3
Set of conditions
Condition
31 2
IR component normal high high
Black-standard 90 + 0
100 – 3 115 – 3
temperature in °C 2 5
Test chamber 45 + 0
65 – 3 48 – 3
2 5
temperature in °C
Relative humidity in test a a
30 – 5 20 – 10 45 – 10
chamber %
no humidification
2 b b
Irradiance in W/m 45 to 60 70 to 90
c
1,1 to 1,4
a
If agreed between the interested parties the test may be run without using humidification unit.
b
Broad-band measurement at 300 nm to 400 nm.
c
Narrow-band measurement at 420 nm.
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NOTE 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
a
Parameter “Light off” period
“Light on” period
2 2
Irradiance 0,55 W/m – 0,01 W/m at 340 nm –
Test-chamber temperature, °C 63 – 2 38 – 2
Black-panel temperature, °C 89 2 38 2
– –
Relative humidity in test chamber % 50 – 10 95 – 5
Temperature of conditioning water, 63 – 4 40 – 4
°C
a
Exposure begins at the start of a 3,8 h “light on” period (see annex D).
6.1.1 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.
6.1.2 Carry out exposure under sets of conditions 1, 3 and 5 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.
6.2 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 4.1.1) 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
2
(see 4.2.6) is reached on reference 6 (see 4.1.1). By experience radiant exposure of (250 to 300) kJ/m at 420 nm
2
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 3,4 – 0,4 DE* (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 dose. If agreed between the
interested parties, the exposure may be continued until a contrast corresponding to rating 2 on the gray scale is
reached on reference 6. This means twice the necessary radiant exposure.
6.3 Exposure methods
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.
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6.3.1 Exposure method 1 (end point determined by colour change 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 standard. For a
detailed description see 7.2.1 of ISO 105-B02:1994.
6.3.2 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 6.1. 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°.
6.3.3 Exposure method 3 (end point determined on the ageing test of 3.2)
Using set of exposure conditions No. 3 in 6.1, subject the specimens to a prescribed number of exposures in
accordance with the specification in 6.2. Each exposure requires a new reference 6. The minimum specimen size
for multiple exposures depends on the subsequent assessment method.
6.3.4 Exposure method 4 (end point determined on radiant energy)
Expose the specimens under set of conditions No. 3 or 5 (see 6.1) 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.
7 Assessment of colour fastness to light
7.1 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-A01:1994, clause 14),
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 specimen and the references or comparing the
change in colour of the specimen with the grey scale. For both see 7.2.
b) Assessment after testing by exposure method 3
On completion of the prescribed exposure periods, assess the specimens according to properties that need to be
laid down. For example:
assessment of the surface (e.g. degree of lustre, cracking or blistering);
assessment of shade changes; visual assessment shall be performed only on the grey scale in accordance
with ISO 105-A02. For colorimetric assessment, use ISO 105-A05, which leads to ratings that correspond to
the grey scale ratings of ISO 105-A02;
testing physical properties such as tensile properties, abrasion and hardness.
c) Assessment after testing by exposure method 4
7
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Note any change in colour (see 7.5). Visual comparisons may be made using the grey scale for assessing change
in colour. If the specimens have a backing material note if there is any increase in the stiffness of the backing.
7.2 Comparison of the changes in each specimen with the changes in the references or the grey scale may be
facilitated by surrounding the specimen with a mask of neutral grey colour approximately midway between the
lighter chips in grades 1 and 2 (approximately Munsell N5) and surrounding the references or the grey scale in turn
with a similar mask of equal aperture.
7.3 To avoid misrating the colour fastness of the specimen due to photochromism, allow the specimen to condition
in the dark at room temperature for 24 h before the colour fastness is assessed (see ISO 105-B05). If a specimen is
suspected of photochromic behaviour, determine photochromism according to ISO 105-B05. This may be carried
out under the exposure conditions specified in ISO 105-B02.
7.4 If the specimen is photochromic, the colour fastness rating shall include a P in parentheses with the rating
obtained from the test for photochromism, for example 6 (P3-4) (see ISO 105-B05).
7.5 The term “change in colour” includes changes in hue, chroma, lightness or any combination of these
characteristics (see ISO 105-A02:1993, clause 3).
8 Test report
The test report shall include the following details.
a) reference to this part of ISO 105, i.e. ISO 105-B06:1998;
b) exposure method 2:
1) expressing either
the numerical light fastness rating (when using the references designated 1 to 8) or
the numerical rating for the colour change when using the grey scale;
2) testing apparatus;
3) exposure method and conditions;
4) construction of the test specimen (e.g. nature of underlay);
5) deviations from this part of ISO 105;
6) test date;
c) exposure methods 3 and 4:
1) the numerical rating for the colour change by using the grey scale and/or values for physical properties;
2) the number of exposures or exposure dose;
3) testing apparatus;
4) exposure method and conditions;
5) construction of the test specimen (e.g. nature of underlay);
6) deviations from this part of ISO 105;
7) test date.
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ISO 105-B06:1998(E)
Annex A
(normative)
Exposure methods
The four sets of exposure conditions described in 6.1, Tables 3 and 4, are achieved in the various testing apparati
as follows:
Set of conditions 3 1 and 2 5
Filter system 7 IR WG BS/SL RF320 4 IR + 3 WG Q/BS
Type of apparatus B B C B B C, D
Key
IR: infrared filter glass
WG: window glass
BS: borosilicate filter glass
SL: soda lime filter glass
RF320: reflection filter with cut-off at 320 nm
Q: quartz filter glass
B: apparatus for determining colour fastness and ageing with air-cooled xenon lamps
C: apparatus for determining colour fastness and ageing with water-cooled xenon lamps
D: information on performing the test accordance with set of conditions No. 5.
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Annex B
(normative)
Apparatus for determining colour fastness and ageing
with air-cooled xenon lamps
B.1 Description and conditions of use
B.1.1 The test apparatus used utilizes one or more air-cooled xenon arc lamps as the source of radiation.
Different-type and different-size lamps operating in different wattage ranges are used in several of the different
sizes and types of apparatus. In each of the various models of exposure apparatus, the diameter of the specimen
rack, lamp size and lamp wattage has been established so that when the specimens are exposed in the holders, the
irradiance at the face of the specimens is at the appropriate level.
B.1.2 The radiation system used consists of one or more xenon burner tubes, filter elements and the necessary
accessories. For tests as described in this part of ISO 105, absorption filters or reflection-absorption filters are used
in the different models of exposure apparatus so that the radiation at the specimen has a spectral cut-off value as
defined in Table 2.
B.1.2.1 In apparati with absorption filters the xenon arc lamp is surrounded by a lantern comprising infrared filter
glasses or a combination of infrared filter glasses and window glasses or only window glasses as well as an outer
cylinder of special UV-glass.
B.1.2.2 In apparati with reflection-absorption filters one or more xenon arc lamps are used. Depending on the
model of apparatus there is an air- or water-cooled heat absorber and the system is surrounded either by a lantern
comprising quartz filters with a special reflecting coating as well as an outer cylinder of special UV-glass, or by an
inner quartz cylinder with an infrared reflecting coating and an outer quartz cylinder with a water jacket in between
as well as an outer cylindrical filter comprising three partial covers of window glass.
B.1.2.3 Because of the drop in intensity with continued use, the xenon burner tube(s) shall be discarded after
1 500 h of use or when the irradiance listed in Table 3 is no longer achievable in apparati with automatic control of
irradiance in specimen area. In apparati with more than one xenon arc lamp, the burners shall be exchanged in
rotation.
Because of transmission changes (solarization) of the infrared and window glass filters the oldest filter in the lantern
shall be replaced every 500 h.
B.1.3 The space between the xenon arc lamp(s) and the filtering device is cooled by a current of air. It is
recommended that this cooling air be discharged outside the building.
B.2 Temperature and humidity control
B.2.1 Because of the sensitivity to temperature of some fabrics, accurate, close control of the test temperature is
extremely important in tests made by the described procedures. The temperature is measured and, in some models
of exposure apparatus, controlled using a black-standard thermometer which is mounted on the revolving specimen
rack so that its surface is in the same relative position and subjected to the same influences as the test specimens.
B.2.2 A stream of air generated by a blower is directed through the test chamber and over the surface of the test
specimens. The temperature of the air is, with one exception, automatically controlled by recirculating warm air from
the test chamber mixed with cooler room air. It may be necessary to adjust and control the fan speed to meet both
the specified black standard temperature and the specified test chamber temperature.
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SIST EN ISO 105-B06:2004
© ISO
ISO 105-B06:1998(E)
B.2.3 The specimen holders are mounted on a revolving rack at a fixed distance from the vertical lamp unit.
Depending on the model of apparatus, the specimen holders may be mounted either vertically or inclined in the rack
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and the rack may be rotated at between 0,033 s and 0,114 s (2 rpm and 7 rpm) around the lamp unit. For set
of conditions No. 2, the specimen holders may be turned 180° about their longitudinal axis after each revolution of
the rack.
B.2.4 Apparatus for use in this method is equipped with a means of controlling the length of exposure. So
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