ASTM D2048-92(2002)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:D2048–92 (Reapproved 2002)
Standard Test Method for
Powdering of Floor Polish Films
This standard is issued under the fixed designation D 2048; 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.
1. Scope 5.3 Substrate—Official Vinyl Composition Tile (OVCT)
shall be used in this test.
1.1 This test method covers a bench procedure for the
5.4 Volumetric Pipet, 2-mL.
determination of the degree of powdering of floor polishes
5.5 Cheesecloth Applicator, washed to remove sizing; cut
under ambient conditions as well as conditions of low relative
into 50-mm (2-in.) strips of four-ply cloth; folded twice.
humidity.
5.6 Relative Humidity and Temperature Indicator.
1.2 This standard does not purport to address all of the
5.7 Glove Box—An enclosure that houses the crockmeter
safety concerns, if any, associated with its use. It is the
keepingitinaconstanthumidityandtemperatureenvironment;
responsibility of the user of this standard to establish appro-
features rubber glove inserts so that the tests may be run
priate safety and health practices and determine the applica-
keeping the environment of the crockmeter constant.
bility of regulatory limitations prior to use.
5.8 Desiccant—Silica gel or calcium chloride.
2. Referenced Documents 5.9 Salts for Constant Humidity Conditions—LiCl·H O,
CaCl ·6H O, or Mg(NO ) ·6H O.
2.1 ASTM Standards: 2 2 3 2 2
D 3153 Test Method for Recoatability of Water-Emulsion
NOTE 1—Saturated aqueous solutions of the following salts in contact
Floor Polishes
with an excess of a definite solid phase of salt at the indicated
temperatures and in an enclosed space will maintain the required constant
3. Terminology
humidities:
LiCl·H O at 25°C (77°F) yields 11.1 % relative humidity.
3.1 Definition:
CaCl ·6H O at 10°C (50°F) yields 38.0 % relative humidity.
2 2
3.1.1 powdering—partial or total disintegration of the pol-
Mg(NO ) ·6H O at 23.9°C (75°F) yields 42.9 % relative humidity.
3 2 2
ish film resulting in a fine, light colored material.
5.10 Fan, small, electric.
4. Significance and Use
5.11 Metal Clip, to hold the abrading felt on the crockmeter
surface during testing.
4.1 This is a comparative test method. If this method does
not indicate powdering, it is still possible that the product in
6. Preparation of Test Sample
actual use may powder.
6.1 Clean the tile surface in accordance with Test Method
5. Apparatus
D 3153, paragraph 9.1.2, to ensure removal of any coating
present.
5.1 Textile Crockmeter, weighted with a 1-kg weight. The
6.2 Pipet 2 mL of polish onto the center of the test panel.
weight is placed directly over the abrasion dowel and attached
Place the cheesecloth into the polish and allow it to absorb the
with two-faced tape.
emulsion.Distributetheemulsionevenlyoverthesurface;then
5.2 Abrading Felt—670 Kelly No. 720 billiard cloth cut
draw the cheesecloth downward in smooth separate strokes,
into 50 by 50-mm (2 by 2-in.) squares.
with no more pressure than is exerted by the weight of the
hand, until the entire panel has been coated. If 304 by 304-mm
(12 by 12-in.) tiles are used, pipet 3.6 mL of polish out the
center of each tile.
ThistestmethodisunderthejurisdictionofASTMCommitteeD21onPolishes
6.3 Apply a second coat of polish 1 h after the first. Apply
and is the responsibility of Subcommittee D21.04 on Performance Tests.
Current edition approved Aug. 15, 1992. Published October 1992. Originally this coat in the same manner as the first coat.
published as D 2048 – 64 T. Last previous edition D 2048 – 87.
6.4 One hour after the second coat of polish has dried, place
Annual Book of ASTM Standards, Vol 15.04.
one o
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