Standard Test Method for Color of Transparent Liquids (Gardner Color Scale)

SCOPE
1.1 This test method covers the measurement of the color of transparent liquids by means of comparison with arbitrarily numbered glass standards. It applies to drying oils, varnishes, fatty acids, polymerized fatty acids, and resin solutions. Its application to other materials has not been tested.
1.2 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. >

General Information

Status
Historical
Publication Date
09-Jan-1998
Current Stage
Ref Project

Relations

Buy Standard

Standard
ASTM D1544-98 - Standard Test Method for Color of Transparent Liquids (Gardner Color Scale)
English language
2 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (Sample)


NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D 1544 – 98
Standard Test Method for
Color of Transparent Liquids (Gardner Color Scale)
This standard is issued under the fixed designation D 1544; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
TABLE 1 Color Specifications of Reference Standards
1. Scope
A
Gardner Chromaticity Coordinates
1.1 This test method covers the measurement of the color of
Luminous Transmittance
Color
Transmittance Tolerance,
transparent liquids by means of comparison with arbitrarily
Standard
Y,% 6
xy
numbered glass standards. Number
1.2 This standard does not purport to address all of the
1 0.3177 0.3303 80 7
2 0.3233 0.3352 79 7
safety concerns, if any, associated with its use. It is the
3 0.3329 0.3452 76 6
responsibility of the user of this standard to establish appro-
4 0.3437 0.3644 75 5
priate safety and health practices and determine the applica-
5 0.3558 0.3840 74 4
6 0.3767 0.4061 71 4
bility of regulatory limitations prior to use.
7 0.4044 0.4352 67 4
8 0.4207 0.4498 64 4
2. Referenced Documents
9 0.4343 0.4640 61 4
10 0.4503 0.4760 57 4
2.1 ASTM Standards:
11 0.4842 0.4818 45 4
D 1545 Test Method for Viscosity of Transparent Liquids
12 0.5077 0.4638 36 5
by Bubble Time Method
13 0.5392 0.4458 30 6
14 0.5646 0.4270 22 6
E 308 Practice for Computing the Colors of Objects by
15 0.5857 0.4089 16 2
Using the CIE System
16 0.6047 0.3921 11 1
17 0.6290 0.3701 6 1
3. Significance and Use
18 0.6477 0.3521 4 1
A
A duplicate standard shall have chromaticity coordinates that differ from the
3.1 This test method applies to drying oils, varnishes, fatty
reference standard by no more than one third of the difference in x or y between
acids, polymerized fatty acids, and resin solutions. Its applica-
adjacent reference standards. In any one set, no two standards shall be closer
tion to other materials has not been tested.
together than two thirds of the difference in x or y between corresponding
reference standards.
4. Apparatus
4.1 Glass Standards, 18, numbered separately, and having
4.3 Suitable apparatus for comparing sample and standard.
the color characteristics given in Table 1. The color shall be
The apparatus may be of any design, but should have the
produced by the glass components only. Some glass standards
following characteristics:
in use today do not conform to the values reported in Table 1.
4.3.1 Illumination—CIE Illuminant C.
The calibration of glass standards should be verified prior to
4.3.2 Surrounding Field—The field should not differ sig-
use, a suitable procedure for their calibration is contained in
nificantly in brightness from the samples and standards and
Appendix X1.
should be essentially achromatic.
4.2 Glass Tubes, clear, 10.65 mm in inside diameter and
4.3.3 Field of View—The specimen and one or more stan-
about 114 mm in outside length. (Viscosity tubes, as described
dards should subtend a visual angle of about 2 ° and be in the
in Test Method D 1545, are satisfactory.)
field of view simultaneously.
4.3.4 Separation of Standard and Specimen—There should
1 be a perceptible separation between specimen and standard, but
This method is under the jurisdiction of Committee D-1 on Paint and Related
this should be as small as is mechanically possible.
Coatings, Materials and Applications, and is the direct responsibility of Subcom-
mittee D01.26 on Optical Properties.
Current edition approved Jan. 10, 1998. Published September 1998. Originally
5. Procedure
{1
published as D 1544–58T. Last previous edition D 1544–80 (1989) .
2 5.1 Fill a glass tube with the material under test. If the
Annual Book of ASTM Standards, Vol 06.03.
Annual Book of ASTM Standards, Vol 06.01. material is perceptibly cloudy, first filter it.
Copyright ©
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.