ASTM D3210-95(2008)

Standard Test Method for Comparing Colors of Films from Water-Emulsion Floor Polishes

SIGNIFICANCE AND USE
Whiteness index obtained from reflectance measurements on exaggerated dried polish films on filter paper can be used as a measurement of the color of such films.
Whiteness index may be useful in predicting the potential discoloring effect of polish films on flooring substrates.
Whiteness index should be useful in specifications when color comparisons are made with a standard sample polish.
SCOPE
1.1 This test method covers comparing colors of films (or solids) deposited from the emulsified particles in water emulsion floor polishes. It is based upon luminous reflectance measurements made with tristimulus colorimeters such as the Hunter Color Difference Meter.  
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 This standard does not purport to address all of the safety concerns, if any, 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: 29-Feb-2008
• ICS: 17.180.20 - Colours and measurement of light
• ICS: 71.100.99 - Other products of the chemical industry
• Technical Committee: D21 - Polishes
• Drafting Committee: D21.04 - Performance Tests

Relations

• Replaces: ASTM D3210-95(2002) - Standard Test Method for Comparing Colors of Films from Water-Emulsion Floor Polishes
• Effective Date: 01-Mar-2008
• Referred By: ASTM D3440-13(2019) - Standard Guide for Preparing Specifications for Water-Emulsion Floor Polishes
• Effective Date: 01-Mar-2008
• Referred By: ASTM D4078-02(2021) - Standard Specification for Water Emulsion Floor Polish
• Effective Date: 01-Mar-2008

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D3210 − 95(Reapproved 2008)
Standard Test Method for
Comparing Colors of Films from Water-Emulsion Floor
Polishes
This standard is issued under the fixed designation D3210; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope Difference Meter. L measures lightness, which is 100 for
perfectly white and zero for black; and b measures yellow-
1.1 This test method covers comparing colors of films (or
ness when plus, blueness when minus, and zero for neutral
solids) deposited from the emulsified particles in water emul-
gray or white. Conversion factors for instruments reading in
sion floor polishes. It is based upon luminous reflectance
X, Y, Z units are:
measurements made with tristimulus colorimeters such as the
Hunter Color Difference Meter.
L 5 10=Yb 5 7.0 Y 2 0.847 Z /=Y (2)
~ !
1.2 The values stated in SI units are to be regarded as the
4. Summary of Test Method
standard. The values given in parentheses are for information
4.1 Reflectance measurements are made on exaggerated or
only.
heavy dried polish films produced by saturating white filter
1.3 This standard does not purport to address all of the
paper.The color measurement is expressed as whiteness index.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
5. Significance and Use
priate safety and health practices and determine the applica-
5.1 Whiteness index obtained from reflectance measure-
bility of regulatory limitations prior to use.
ments on exaggerated dried polish films on filter paper can be
2. Referenced Documents
used as a measurement of the color of such films.
2.1 ASTM Standards: 5.2 Whiteness index may be useful in predicting the poten-
E259 Practice for Preparation of Pressed Powder White
tial discoloring effect of polish films on flooring substrates.
Reflectance Factor Transfer Standards for Hemispherical
5.3 Whiteness index should be useful in specifications when
and Bi-Directional Geometries
color comparisons are made with a standard sample polish.
3. Terminology
6. Apparatus
3.1 Definitions:
6.1 Tristimulus Colorimeter, which gives reflectance read-
3.1.1 whiteness index—a color measurement calculated
ings which in turn are converted by calculations to L, a, and b
from the equation
color scale values, or these color scale values may be read
WI 5 L 2 3b (1)
directly from an instrument that automatically makes the
calculations. Other apparatus is satisfactory if equivalent re-
where L and b are values measured directly with the Color
sults are obtained.
6.2 Filter Paper, medium flow rate, cut into strips 76.2 by
ThistestmethodisunderthejurisdictionofASTMCommitteeD21onPolishes
152.4 mm (3 in. by 6 in.).
and is the direct responsibility of Subcommittee D21.04 on Performance Tests
Current edition approved March 1, 2008. Published April 2008. Originally
6.3 Spring Clamp, approximately 76 mm (3 in.) wide, two
approved in 1973. Last previous edition approved in 2002 as D3210 – 95 (2002).
are required.
DOI: 10.1520/D3210-95R08.
Hunter, R. S., “Photoelectric Color Difference Meter,” Journal of the Optical
NOTE 1—The following instruments are believed to provide color
Society, Vol. 48, 1958, p. 985.
3 difference measurements suitable for use with this procedure:
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
(1) Hunter Color Difference Meter.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
(2) Color Eye Colorimeter.
Standards volume information, refer to the standard’s Document Summary page on
(3) General Electric Recording Spectrophotometer.
the ASTM website.
(4) Colormaster Differential Colorimeter.
Hunter, R. S., “Instruments and Test Methods for Control of Whiteness in
TextileMills,” America
...