ASTM D3430-95(2008)

Standard Test Method for Clarity and Yellowness of Liquid Water-Based Clear Floor Polishes

SIGNIFICANCE AND USE
The laboratory technique described in this test method is used to evaluate the clarity and yellowness of water-based “clear” floor polishes for product development or quality control purposes.
SCOPE
1.1 This test method covers measurement of the degree of clarity and depth of yellowness of water-based clear floor polishes.
1.2 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: 71.100.99 - Other products of the chemical industry
• ICS: 97.080 - Cleaning appliances
• Technical Committee: D21 - Polishes
• Drafting Committee: D21.03 - Chemical and Physical Testing

Relations

• Replaces: ASTM D3430-95(2002) - Standard Test Method for Clarity and Yellowness of Liquid Water-Based Clear Floor Polishes
• 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D3430 − 95(Reapproved 2008)
Standard Test Method for
Clarity and Yellowness of Liquid Water-Based Clear Floor
Polishes
This standard is issued under the fixed designation D3430; 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 5. Sampling
1.1 This test method covers measurement of the degree of 5.1 The sample shall be representative of the material to be
clarity and depth of yellowness of water-based clear floor tested and the portion used for the test shall be representative
polishes. of the sample itself.
1.2 This standard does not purport to address all of the 5.2 Calibration Sample—Any emulsion polymer that visu-
safety concerns, if any, associated with its use. It is the
ally exhibits little or no yellowness, selected for dilution (see
responsibility of the user of this standard to establish appro- 6.1).
priate safety and health practices and determine the applica-
6. Preparation of Correction Graph
bility of regulatory limitations prior to use.
6.1 Prepare minimum of five dilutions of the calibration
2. Terminology sample with distilled water so that absorbance reading between
0.00 and 0.16 at 500 nm are obtained. Measure the absorbance
2.1 Definitions:
at both 500 nm and 400 nm for each dilution (see Section 7).
2.1.1 absorbance—the negative logarithm, to the base 10, of
the ratio of the radiant power transmitted through a sample to 6.2 Plot the absorbance at 500 nm versus that at 400 nm and
fit a straight line through the resulting points starting from the
the radiant power incident upon the sample. Hence, as the
clarity decreases or the depth of the yellowness increases the origin (see Fig. 1).
absorbance increases.
6.3 It is necessary to prepare a correction graph only once
for a given instrument and set of cells.
3. Significance and Use
7. Procedure
3.1 The laboratory technique described in this test method is
7.1 Adjustment of Colorimeter—Set the colorimeter at 500
used to evaluate the clarity and yellowness of water-based
nm and at 0 absorbance with distilled water as a blank in one
“clear” floor polishes for product development or quality
of the matched cells.
control purposes.
7.2 Absorbance—Fill the companion cell with sample and
4. Apparatus
place in the cell holder. Read and record the absorbance. This
4.1 Colorimeter, equipped with cylindrical 20-mm matched
reading is indicative of the degree of turbidity.
cells. (If 20-mm cells are not available, 10-mm matched cells
7.3 Adjustment of Colorimeter—Reset the colorimeter at
may be substituted.)
400 nm and at 0 absorbance with distilled water as a blank in
4.2 Any colorimeter having equivalent resolution and sen- one of the matched cells.
sitivity may be used with the appropriate matched cells.
7.4 Absorbance—Read and record the absorbance of the
sample. This reading is indicative of the uncorrected yellow-
ness.
This test method is under the jurisdic
...