ASTM D1793-92(1996)e1

e1
Designation: D 1793 – 92 (Reapproved 1996)
Standard Test Method for
Water Spotting of Emulsion Floor Polishes
This standard is issued under the fixed designation D 1793; 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.
e NOTE—Keywords were added editorially in September 1996.
1. Scope 5. Apparatus
1.1 This test method covers the determination of water 5.1 Substrate—The substrate to be used is vinyl composi-
spotting resistance of water emulsion floor polishes. The test tion tile (OVCT).
method approximates the actual conditions of water spotting 5.2 Distilled Water.
encountered in service. 5.3 Pipet, volumetric, 1-mL.
1.2 This standard does not purport to address all of the
6. Preparation of Test Panel
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- 6.1 Apply the emulsion floor polish on the black official
vinyl composition tile panel in accordance with Method C
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. (Manual Dip Method) of Test Methods D 1436. After applica-
tion, place the panel in a near vertical position and at the end
2. Referenced Documents
of 10 min, wipe off the bead at the bottom of the panel and
2.1 ASTM Standards: allow the panel to dry in a vertical position for2hat standard
D 1436 Test Methods for Application of Emulsion Floor conditions of 50 6 4 % relative humidity and 23.9 6 1.1°C (75
Polishes to Substrates for Testing Purposes 6 2°F). Apply a second coat in the same manner but reverse
the panel so that the top is at the bottom. Drain in a near
3. Terminology
vertical position for 10 min, wipe off the bead, and continue
3.1 Definition:
drying in a vertical position at standard conditions for 24 h.
3.1.1 water spotting—any change in appearance of surface
NOTE 2—The drying time, counted from the time of application of the
resulting solely from the action of cool water.
second coat, may be varied from 24 h, but it should be remembered that
some floor polishes which have suitable water spotting resistance during
4. Significance and Use
their normal service life do not achieve this resistance until 24 to 48 h after
4.1 This test method measures the ability of a floor polish to application.
resist spotting by water. This test method may be used to
7. Procedure
measure the extent of damage by a large amount of water or in
7.1 Dynamic Test—Standard conditions of 50 6 4 % rela-
a separate method to measure the amount of damage by a small
tive humidity and 23.9 6 1.1°C (75 6 2°F) should prevail in
amount of water that has evaporated to dryness. Reference
the test area. Place the panel in a horizontal position making
polishes should be used for comparison.
sure that the top is level. Place 1 mL of distilled water near the
NOTE 1—The test method may induce slight whitening, color change,
center of the panel, and allow it to stand undisturbed for 1 h.
noticeable change in appearance, including removal of the film, which is
Use cheesecloth, or a soft cotton cloth previously wet with
caused by contact with water.
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
This test method is under the jurisdiction of ASTM Committee D-21 on
Polishes and is the direct responsibility of Subcommittee D21.04 on Performance
The sole source of supply of the apparatus known to the committee at this time
Tests.
is Official Vinyl Composition T
...