ASTM D2048-23

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it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D2048 − 17 D2048 − 23
Standard Test Method for
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Powdering of Floor Polish Films
This standard is issued under the fixed designation D2048; 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
1.1 This test method covers a bench procedure for the determination of the degree of powdering of floor polishes under ambient
conditions as well as conditions of low relative humidity.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
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 healthsafety, health, and environmental practices and determine
the applicability of regulatory limitations prior to use.
1.4 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.
2. Referenced Documents
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2.1 ASTM Standards:
D3153 Test Method for Recoatability of Water-Emulsion Floor Polishes
3. Terminology
3.1 Definitions:
3.1.1 powdering—powdering, n—partial or total disintegration of the polish film resulting in a fine, light colored material.
4. Significance and Use
4.1 This is a comparative test method. If this method does not indicate powdering, it is still possible that the product in actual use
may powder.powder. Reference polishes should be used for comparison.
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This test method is under the jurisdiction of ASTM Committee D21 on Polishes and is the responsibility of Subcommittee D21.04 on Performance Tests.
Current edition approved March 1, 2017Dec. 1, 2023. Published April 2017December 2023. Originally approved in 1964. Last previous edition approved in 20102017
as D2048 – 10.D2048 – 17. DOI: 10.1520/D2048-17.10.1520/D2048-23.
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volume information, refer to the standard’s Document Summary page on the ASTM website.
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D2048 − 23
5. Apparatus
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5.1 Textile Crockmeter, weighted weighted with a 2.2-lb (1-kg)2.2 lb (1 kg) weight. The weight is placed directly over the abrasion
dowel and attached with two-faced tape.
5.2 Abrading Felt—670 Kelly No. 720 billiard Green felt or billiard cloth cut into 2 by 2-in. (50 by 50-mm)2 in. by 2 in. (50 mm
by 50 mm) squares.
5.3 Substrate—Official Vinyl Composition Tile
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(OVCT)(OVCT), cut into 6 in. by 6 in. squares, shall be used in this test.
5.4 Volumetric Pipet, 0.07-oz (2-mL).0.07 oz (2 mL).
5.5 Cheesecloth Applicator, washed to remove sizing; cut into 2-in. (50-mm)2 in. (50 mm) strips of four-ply cloth; folded twice.
5.6 Relative Humidity and Temperature Indicator.
5.7 Glove Box—An enclosure that houses the crockmeter keeping it in a constant humidity and temperature environment; features
rubber glove inserts so that the tests may be run keeping the environment of the crockmeter constant.
5.8 Desiccant—Silica gel or calcium chloride.
5.9 Salts for Constant Humidity Conditions—LiCl·H O, CaCl ·6H O, or Mg(NO ) ·6H O.
2 2 2 3 2 2
NOTE 1—Saturated aqueous solutions of the following salts in contact with an excess of a definite solid phase of salt at the indicated temperatures and
in an enclosed space will maintain the required constant humidities:
LiCl·H O at 77°F (25°C)77 °F (25 °C) yields 11.1 % relative humidity.
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CaCl ·6H O at 50°F (10°C)50 °F (10 °C) yields 38.0 % relative humidity.
2 2
Mg(NO ) ·6H O at 75°F (23.9°C)75 °F (23.9 °C) yields 42.9 % relative humidity.
3 2 2
5.10 Fan, small, electric.
5.11 Metal Clip, to hold the abrading felt on the crockmeter surface during testing.
6. Preparation of Test Sample
6.1 Clean the tile surface in accordance with Test Method D3153, paragraph 9.1.2, to ensure
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