ASTM D1793-23

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D1793 − 23
Standard Test Method for
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Water Spotting of Emulsion Floor Polishes
This standard is issued under the fixed designation D1793; 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.
NOTE 1—The test method may induce slight whitening, color change,
1. Scope
noticeable change in appearance, including removal of the film, which is
1.1 This test method covers the determination of water
caused by contact with water.
spotting resistance of water emulsion floor polishes. The test
method approximates the actual conditions of water spotting 5. Apparatus
encountered in service.
5.1 Substrate—The substrate to be used is official vinyl
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1.2 This standard does not purport to address all of the
composition tile (OVCT).
safety concerns, if any, associated with its use. It is the
5.2 Distilled Water.
responsibility of the user of this standard to establish appro-
5.3 Pipet, volumetric, 1 mL.
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
6. Preparation of Test Panel
1.3 This international standard was developed in accor-
dance with internationally recognized principles on standard- 6.1 Apply the emulsion floor polish on the black
OVCT panel in accordance with Method C (Manual Dip
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom- Method) of Test Method D1436. After application, place the
panel in a near vertical position and at the end of 10 min, wipe
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee. off the bead at the bottom of the panel and allow the panel to
dry in a vertical position for 2 h at standard conditions of 50 %
2. Referenced Documents
6 4 % relative humidity and 23.9 °C 6 1.1 °C (75 °F 6 2 °F).
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Apply a second coat in the same manner but reverse the panel
2.1 ASTM Standards:
so that the top is at the bottom. Drain in a near vertical position
D1436 Test Methods for Application of Emulsion Floor
for 10 min, wipe off the bead, and continue drying in a vertical
Polishes to Substrates for Testing Purposes
position at standard conditions for 24 h.
3. Terminology
NOTE 2—The drying time, counted from the time of application of the
second coat, may be varied from 24 h, but it should be remembered that
3.1 Definitions:
some floor polishes which have suitable water spotting resistance during
3.1.1 water spotting, n—any change in appearance of sur-
their normal service life do not achieve this resistance until 24 h to 48 h
face resulting solely from the action of cool water.
after application.
4. Significance and Use
7. Procedure
4.1 This test method measures the ability of a floor polish to
7.1 Dynamic Test—Standard conditions of 50 % 6 4 %
resist spotting by water. This test method may be used to
relative humidity and 23.9 °C 6 1.1 °C (75 °F 6 2 °F) should
measure the extent of damage by a large amount of water or in
prevail in the test area. Place the panel in a horizontal position
a separate method to measure the amount of damage by a small
making sure that the top is level. Place 1 mL of distilled water
amount of water that has evaporated to dryness. Reference
near the center of the panel, and allow it to stand undisturbed
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polishes should be used for comparison.
for 1 h. Use cheesecloth, or a soft cotton cloth previously wet
with distilled water and well wrung out so that it is just damp
and wipe up the water from the panel. Rub a small piece of dry
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This test method is under the jurisdiction of ASTM Committee D21 on Polishes
cloth very lightly over the area to remove the last of the
and is the direct responsibility of Subcommittee D21.04 on Performance Tests.
Current edition approved Dec. 1, 2023. Published December 2023. Originally
approved in 1960. Last previous edition approved in 2017 as D1793 – 17. DOI:
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10.1520/D1793-23. OVCT tile may be obtained through Armstrong Flooring from various home
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or improvement stores. The following Armstrong tile substrates have been found to
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM perform adequately for this test method: Armstrong Excelon Feature Tile: Black
Standards volume information, refer to the standard’s Document Summary page on (56790).
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the ASTM website. Gauze pads, available from most pharmacies, ar
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