SIST EN ISO 2813:1999

Paints and varnishes - Determination of specular gloss of non-metallic paint films at 20°, 60° and 85° (ISO 2813:1994, including Technical Corrigendum 1:1997)

This international standard specifies the test methods for determining the specular gloss of paint films using three reflectometer geometries of 20°, 60° and 85°. These methods are not suitable for the measurement of the gloss of metallic paint.

Beschichtungsstoffe - Bestimmung des Reflektometerwertes von Beschichtungen (außer Metallic-Beschichtungen) unter 20°, 60° und 85° (ISO 2813:1994, einschließlich Technische Korrektur 1:1997)

Diese Internationale Norm gehört zu einer Reihe von Normen, welche die Probenahme und die Prüfung von Beschichtungsstoffen behandelt. Diese Internationale Norm legt ein Verfahren zum Bestimmen des Reflektometerwertes von Beschichtungen unter den drei Meßgeometrien 20°, 60° oder 85° fest. Das Verfahren ist für die Messung des Glanzes von Metallic-Beschichtungen nicht geeignet.

Peintures et vernis - Détermination de la réflexion spéculaire de feuils de peinture non métallisée a 20°, 60° et 85° (ISO 2813:1994, Rectificatif Technique 1:1997, inclus)

Barve in laki - Določevanje sijaja neefektnih premaznih sredstev pod koti 20o, 60o in 85o (ISO 2813:1994, vključno s tehničnim popravkom 1:1997)

General Information

• Status: Withdrawn
• Publication Date: 31-Aug-1999
• Withdrawal Date: 24-Nov-2014
• ICS: 87.040 - Paints and varnishes
• Technical Committee: IBLP - Paints and varnishes
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 17-Nov-2014
• Due Date: 10-Dec-2014
• Completion Date: 25-Nov-2014
• Directive: 89/106/EEC - Construction products
• Mandate: M/111 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on circulation fixtures
• Ref Project: EN ISO 2813:1999 - Paints and varnishes - Determination of specular gloss of non-metallic paint films at 20°, 60° and 85° (ISO 2813:1994, including Technical Corrigendum 1:1997)

Relations

• Replaced By: SIST EN ISO 2813:2015 - Paints and varnishes - Determination of gloss value at 20 degrees, 60 degrees and 85 degrees (ISO 2813:2014)
• Effective Date: 01-Jan-2015

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 2813:1999
01-september-1999
%DUYHLQODNL'RORþHYDQMHVLMDMDQHHIHNWQLKSUHPD]QLKVUHGVWHYSRGNRWLRR
LQR,62YNOMXþQRVWHKQLþQLPSRSUDYNRP
Paints and varnishes - Determination of specular gloss of non-metallic paint films at 20°,
60° and 85° (ISO 2813:1994, including Technical Corrigendum 1:1997)
Beschichtungsstoffe - Bestimmung des Reflektometerwertes von Beschichtungen (außer
Metallic-Beschichtungen) unter 20°, 60° und 85° (ISO 2813:1994, einschließlich
Technische Korrektur 1:1997)
Peintures et vernis - Détermination de la réflexion spéculaire de feuils de peinture non
métallisée a 20°, 60° et 85° (ISO 2813:1994, Rectificatif Technique 1:1997, inclus)
Ta slovenski standard je istoveten z: EN ISO 2813:1999
ICS:
87.040 Barve in laki Paints and varnishes
SIST EN ISO 2813:1999 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 2813:1999

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SIST EN ISO 2813:1999

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SIST EN ISO 2813:1999

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SIST EN ISO 2813:1999

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SIST EN ISO 2813:1999

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SIST EN ISO 2813:1999
INTERNATIONAL
Is0
STANDARD
2813
Third edition
1994-08-01
Paints and varnishes - Determination of
specular gloss of non-metallic paint films
at 20°, 60” and 85”
Peintures et vemis
- Dhermination de la rdflexion spbculaire de feuils
de peinture non m&a/Me 9 20, 60” et 85”
Reference number
IS0 2813:1994(E)

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SIST EN ISO 2813:1999
IS0 2813:1994(E)
Foreword
IS0 (the International Organization for Standardization) is a worldwide
federation of national standards bodies (IS0 member bodies). The work
of preparing International Standards is normally carried out through IS0
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. IS0
collaborates closely with the International Electrotechnical Commission
(I EC) on all matters of electrotechnical standardization.
Draft International Standards adopted by the technical committees are
circulated to the member bodies for voting. Publication as an International
Standard requires approval by at least 75 % of the member bodies casting
a vote.
International Standard IS0 2813 was prepared by Technical Committee
ISOFC 35, Paints and varnishes, Subcommittee SC 9, General test
methods for paints and varnishes.
This third edition cancels and replaces the second edition
(IS0 2813:1978), the whole text of which has been technically revised.
Annex A forms an integral part of this International Standard. Annex B is
for information only.
0 IS0 1994
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 l CH-1211 Geneve 20 l Switzerland
Printed in Switzerland
ii

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SIST EN ISO 2813:1999
INTERNATIONAL STANDARD 0 ISO IS0 2813:1994(E)
Paints and varnishes - Determination of specular
gloss of non-metallic paint films at 20”, 60” and 85”
of this International Standard. At the time of publica-
1 Scope
tion, the editions indicated were valid. All standards
are subject to revision, and parties to agreements
This International Standard is one of a series of stan-
based on this International Standard are encouraged
dards dealing with the sampling and testing of paints,
to investigate the possibility of applying the most re-
varnishes and related products.
cent editions of the standards indicated below.
Members of IEC and IS0 maintain registers of cur-
It specifies a test method for determining the specular
gloss of paint films using a reflectometer geometry rently valid International Standards.
of 20”, 60” or 85’. The method is not suitable for the
IS0 15 12: 1991, Paints and varnishes - Sampling of
measurement of the gloss of metallic paints.
products in liquid or paste form.
a) The 60” geometry is applicable to all paint films,
IS0 1513:1992, Paints and varnishes - Examination
but for very high gloss and near-matt films 20” or
and preparation of samples for testing.
85" may be more suitable.
I SO 2808: 1991, Paints and varnishes - De termi-
b) The 20” geometry, which uses a smaller receptor
nation of film thickness.
aperture, is intended to give improved differen-
tiation between high-gloss paint films (i.e. films
with a 60” specular gloss higher than about 70
units).
3 Definition
c) The 85” geometry is intended to give improved
For the purposes of this International Standard, the
differentiation between low-gloss paint films (i.e.
following definition applies.
films with a 60” specular gloss lower than about
10 units).
3.1 specular gloss: The ratio of the luminous flux
reflected from an object in the specular direction for
a specified source and receptor angle to the luminous
NOTES
flux reflected from glass with a refractive index of
1,567 in the specular direction.
1 The same geometry should, of course, be retained for
a series of measurements even if this means disregarding
NOTE 3 To define the specular-gloss scale, polished
the suggested limits.
black glass with a refractive index of 1,567 is assigned the
2 In some cases, the determination of specular gloss may value of 100 for geometries of ZOO, 60” and 85”.
not correspond to a visual assessment.
4 Required supplementary information
2 Normative references For any particular application, the test method speci-
fied in this International Standard needs to be com-
The following standards contain provisions which, pleted by supplementary information. The items of
through reference in this text, constitute provisions supplementary information are given in annex A.
1

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SIST EN ISO 2813:1999
Q IS0
The dimensions of the source image and receptor
5 Apparatus
apertures and the associated tolerances shall be
as indicated in table 1. The angular dimensions of
Ordinary laboratory apparatus and g lassware, together
the receptor field stop shall be measured from the
with the following:
receptor lens.
5.1 Substrate for tests where a liquid paint
sample is supplied
Filtering at the receptor
b)
The substrate shall be glass of mirror quality, prefer-
Filtering at the receptor shall be done in such a
ably of thickness at least 3 mm and of dimensions at
way that the transmittance of the filter T(L) is
least 150 mm x 100 mm. The largest dimension shall
given by
be at least equal to the length of the illuminated area.
& ‘(‘) ’ ‘c(‘)
NOTE 4 Although the method as written is restricted to
= s(n)a ss(1)
paints, clear varnishes may be tested by using as the
substrate either black glass or clear glass roughened and
where
covered on the back and edges by black paint.
V(A) is the CIE photopic luminous effi-
ciency;
5.2 Film applicator
Sc(;1) is the spectral power distribution of
CIE standard illuminant C;
A block applicator, having a recess ground from the
under-face to form a gap 150 pm & 2 pm deep when
is the spectral sensitivity of the
s(A)
placed on an optically plane surface, or other means
receptor;
of applying a paint film, shall be used.
S&L) is the spectral power distribution of
NOTE 5 The block applicator produces a wet-film thick-
the illuminating source;
ness of approximately 75 pm.
k is a calibration constant.
NOTE 6 The tolerances have been chosen so that
. Glossmeter errors in the source and receptor apertures will not
53
produce reading errors of more than one gloss unit at
any point on a loo-unit scale (see 5.4.1).
The glossmeter shall consist of a light source and a
lens that directs a parallel beam of light onto the sur-
By agreement, CIE standard illuminant A may also
face under test, and a receptor housing containing a
be used for a transition period. This shall be stated
lens, field stop and photoelectric cell to receive the
in the test report.
required cone of reflected light. The glossmeter shall
have the following characteristics.
a) Geometry
cl Vignetting
The axis of the incident beam shall be at
There shall be no vignetting of rays that lie within
20” & O,l”, 60” * 0,l” or 85” & 0,l” (see table11
the field angles specified in 5.3 a).
to the normal to the surface under test. The axis
of the receptor shall coincide with the mirror im-
age of the axis of the incident beam to within
Receptor meter
d)
fO,l O. With a flat piece of polished black glass or
a front-reflecting mirror in the test panel position,
The receptor measurement device shall give a
an image of the source shall be formed at the
reading proportional to the light flux passing the
centre of the receptor field stop (receptor win-
receptor field stop to within 1 % of the full-scale
dow). (See figure 1 for a general indication of the
reading.
essential features.) To ensure averaging over the
whole surface, the width of the illuminated area
NOTE 7 A commonly used receptor meter arrange-
of the test panel shall be significantly larger than
ment uses a barrier-layer photocell in conjunction with
likely surface structures: a generally accepted
a high-resistance galvanometer. This is not satisfactory
value is 10 mm.
as the galvanometer output is markedly non-linear, but
2

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SIST EN ISO 2813:1999
0 IS0
IS0 2813:1994(E)
this can be overcome by connecting a low-input-
In addition, the apparatus shall have a sensitivity
impedance electronic amplifier between the photocell
control enabling the photocell current to be set to
and the galvanometer.
any desired value on the instrument scale.
Table 1 - Angles and relative dimensions of source image and receptor aperture
In plane of measurements) Perpendicular to plane of measurement
Parameter
relative relative
angle 0 2) 2 tan 42 angle 0 2) 2 tan a/2
dimension dimension
0,25" 0,013 I 0,004 4 0,171 * 0,075
Source image aperture 0,75" k * ~ 2,5" & 0,5" 0,043 6 & 0,008 7 0,568 & 0,114
Receptor aperture
0,05" 0,031 4 * 0,000 9 0,409 * 0,012 & 0,023
(20" geometry) 1,80" k 3,6" f: 0,I" 0,062 9 & 0,001 8 0,819
Receptor aperture
4,4" * 0,I” 0,076 8 &- 0,001 8 1,000 * 0,023 11,7" * 0,2" 0,204 9 & 0,003 5 2,668 & 0,046
(60" geometry)
Receptor aperture
(85" geometry) --[4.0"0,3" 1 0,069 8 & 0,005 2 1 0,909 f: 0.0:
6,O" & 0,3" 1 0,104 8 of 0,005 2 1 1,365 rt 0,068
I
I) The receptor aperture in the plane of measurement for the 60” geometry has been taken as unity.
2) source image aperture angle: 0s; receptor aperture angle: bB.
I
G
I
L
.
,
.
I
L
‘. - 1
I
s-
‘l-
\
\
.
.
I
. \
.
Q
.
\
. .
@ \
. \
G = lamp
L, and L, = lens
B = receptor field stop
P = paint film
El = &2
aB = receptor aperture angle
= source image aperture angle
3
I = image of filament
Figure 1 -
Schematic diagram of a glossmeter (section through the plane of measurement)
3

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SIST EN ISO 2813:1999
Q IS0
IS0 2813:1994(E)
5.4 Reference standards
Table 2 - Specular-gloss values for polished
black glass
5.4.1 Primary reference standard
Refractive
Angle of incidence
index
The primary reference standard shall be highly pol- n 20” 60" 85"
ished black glass, the top surface being plane to
1,400
57,0 71,9 96,6
within two fringes per centimetre, as measured by
1,410 59,4 73,7
96,9
optical-interference methods.
1,420 61,8 75,5
97,2
1,430 64,3 77,2 97,5
NOTE 8 It is not intended that the primary reference
1,440 66,7 79,0 97,6
standards be used for daily calibration of glossmeters.
1,450 69,2 80,7 98,0
1,460 71,8 82,4 98,2
1,470 74,3 84,l 98,4
Glass with a refractive index, measured at a wave-
1,480 76,9 85,8 98,6
length of 587,6 nm, of 1,567 shall be assigned the
1,490 79,5 87,5 98,8
specular-gloss value of 100. If glass of this refractive
index is not available, a correction is needed. Values
1,500 82,0 89,l
99,0
of specular gloss for polished black glass of various
1,510 84,7 90,8 99,2
refractive indices at the three angles of incidence are 1,520 87,3 92,4 99,3
1,530 90,o 94,l 99,5
given in table2.
1,540 92,7 95,7 99,6
1,550 95,4 97,3 99,8
The primary standard shall be checked at least every
1,560 98,l 98,9 99,9
two years because of the possibility of ageing. In the
1,567') 100,o 1) 100,o '1 100,o '1
event of degradation, the original gloss can be re-
stored by optical polishing with cerium oxide. 1,570 100,8 100,5 100,o
1,580 103,6 102,l 100,2
NOTES
1,590 106,3 103,6 100,3
9 The most readily available glass of the required planarity 1,600 109,l 105,2 100,4
is now manufactured by the “float” process. This glass is 1,610 111,9 106,7 100,5
unsuitable for use as a primary reference standard because 1,620 114,3 108,4 100,6
the refractive index of the bulk of the glass differs from that 1,630 117,5 109,8 100,7
of the surface. It is preferable to use an optically plane glass 1,640 120,4 111,3 100,8
made by some other process, or to remove the surface of 1,650 123,2 112,8 100,9
the float glass and repolish to optical planarity. 1,660 126,l 114,3 100,9
...