ASTM D1849-95

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
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Designation: D 1849 – 95
Standard Test Method for
Package Stability of Paint
This standard is issued under the fixed designation D 1849; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 4. Procedure
1.1 This test method covers the change in consistency and 4.1 Obtain duplicate samples of the paint in original, un-
certain other properties that may take place when liquid paint opened containers in accordance with Practice D 3925 (Note
of either the solvent-reducible or water-reducible type is stored 1). Examine one of the samples received for the characteristics
at a temperature above 32°F (0°C). listed in 4.2, using the procedures therein described. Weigh the
1.2 The values stated in inch-pound units are to be regarded other unopened sample to the nearest 1 g, then hold it
as the standard. The values given in parentheses are for undisturbed for specified periods of time and ranges of
information only. temperature, as agreed upon between purchaser and seller
1.3 This standard does not purport to address all of the (Note 2). After storage, reweigh the sample without shaking to
safety concerns, if any, associated with its use. It is the determine loss of weight resulting from faulty closure.
responsibility of the user of this standard to establish appro-
NOTE 1—Containers should preferably be no larger than 1 qt (1 L).
priate safety and health practices and determine the applica-
NOTE 2—Storage for 1 month at 125 6 2°F (52 6 1°C) simulates some
bility of regulatory limitations prior to use.
of the effects of storage for 6 months to 1 year at 73 6 3.5°F (23 6 2°C).
However, it should be recognized that storage at 125°F may not simply
2. Referenced Documents
accelerate changes occurring at 73°F. With water-borne paints, for
example, at 125°F the growth of some putrefying bacteria is inhibited.
2.1 ASTM Standards:
D 562 Test Method for Consistency of Paints Using the
4.2 Bring the stored sample to 73 6 3.5°F (23 6 2°C). Note
Stormer Viscometer
evidence of pressure or vacuum in the unopened container.
D 869 Test Method for Evaluating Degree of Settling of
Open the container and note skinning, corrosion and odor of
Paint
putrefaction, rancidity or souring. Disregard other odors. If the
D 3925 Practice for Sampling Liquid Paints and Related
sample is in a 1-qt (1-L) or smaller container, measure the
Pigment Coatings
character of the lower or settled layer with the spatula as
described in Method D 869. If the sample is larger than 1 qt,
3. Apparatus
omit this step. Hand stir the paint 300 stirs in 2 min with a
3.1 Spatula, weighing 45 6 1 g with square-ended blade 4 ⁄4
spatula appropriate to the container, stirring so as to ensure
in. (120 mm) in length and approximately ⁄16 in. (20 mm) in
uniform distribution of any settled material (Note 3 and Note
width as described in Method D 869.
4).
3.2 Viscometer—A Stormer viscometer with the paddle-
4.3 Immediately after stirring, measure the consistency of
type rotor as described in Test Method D 562.
the paint in accordance with Test Method D 562.
3.3 Paint Brush,1 ⁄2 in. (38 mm) polyester or nylon/
4.4 Apply the stored paint to one test panel and the control
1 1
polyester, ⁄2-in (13-mm) thick and 2 ⁄2-in. (63-mm) length out,
paint to the other. After the brushed film has completely
...