ASTM D1849-95(2008)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D1849 − 95 (Reapproved2008)
Standard Test Method for
Package Stability of Paint
This standard is issued under the fixed designation D1849; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 3.4 Test Surface—A smooth-surfaced paper chart coated
with a suitable varnish or lacquer so as to render the surface
1.1 This test method covers the change in consistency and
impervious to paint vehicles.
certain other properties that may take place when liquid paint
of either the solvent-reducible or water-reducible type is stored
4. Procedure
at a temperature above 0°C (32°F).
4.1 Obtain duplicate samples of the paint in original, un-
1.2 The values stated in SI units are to be regarded as the
openedcontainersinaccordancewithPracticeD3925(Note1).
standard. The values given in parentheses are for information
Examine one of the samples received for the characteristics
only.
listed in 4.2, using the procedures therein described. Weigh the
1.3 This standard does not purport to address all of the
other unopened sample to the nearest 1 g, then hold it
safety concerns, if any, associated with its use. It is the
undisturbed for specified periods of time and ranges of
responsibility of the user of this standard to establish appro-
temperature, as agreed upon between purchaser and seller
priate safety and health practices and determine the applica-
(Note 2).After storage, reweigh the sample without shaking to
bility of regulatory limitations prior to use.
determine any loss of weight resulting from faulty closure.
2. Referenced Documents
NOTE 1—Containers should preferably be no larger than 1 L (1 qt).
2.1 ASTM Standards:
NOTE 2—Storage for 1 month at 52 6 1°C (125 6 2°F) simulates some
of the effects of storage for 6 months to 1 year at 23 6 2°C (73 6 3.5°F).
D562 Test Method for Consistency of Paints Measuring
However, it should be recognized that storage at 125°F may not simply
KrebsUnit(KU)ViscosityUsingaStormer-TypeViscom-
accelerate changes occurring at 73°F. With water-borne paints, for
eter
example, at 125°F the growth of some putrefying bacteria is inhibited.
D869 TestMethodforEvaluatingDegreeofSettlingofPaint
4.2 Bring the stored sample to 23 6 2°C (73 6 3.5°F). Note
D3925 Practice for Sampling Liquid Paints and Related
any evidence of pressure or vacuum in the unopened container.
Pigmented Coatings
Open the container and note any skinning, corrosion and odor
3. Apparatus
of putrefaction, rancidity or souring. Disregard other odors. If
the sample is in a 1-L (1-qt) or smaller container, measure the
3.1 Spatula, weighing 45 6 1 g with square-ended blade
3 13 character of the lower or settled layer with the spatula as
120 mm (4 ⁄4 in.) in length and approximately 20 mm ( ⁄16 in.)
described in Test Method D869. If the sample is larger than 1
in width as described in Test Method D869.
qt, omit this step. Hand stir the paint 300 stirs in 2 min with a
3.2 Viscometer—AStormer viscometer with the paddle-type
spatula appropriate to the container, stirring so as to ensure
rotor as described in Test Method D562.
uniform distribution of any settled material (Note 3 and Note
3.3 Paint Brush, 38 mm (1 ⁄2 in.) polyester or nylon/
4).
1 1
polyester,13-mm( ⁄2-in.)thickand63-mm(2 ⁄2-in.)lengthout,
4.3 Immediately after stirring, measure the consistency of
chisel tip.
the paint in accordance with Test Method D562.
1 4.4 Apply the stored
...