ASTM D1309-93(1998)
(Test Method)Standard Test Method for Settling Properties of Traffic Paints During Storage
Standard Test Method for Settling Properties of Traffic Paints During Storage
SCOPE
1.1 This test method covers a laboratory procedure for simulating in 2 weeks the settling that might occur in traffic paint during approximately 12 months' normal storage.
1.2 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For a specific hazard statement, see Note in 5.2.
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Designation: D 1309 – 93 (Reapproved 1998)
Standard Test Method for
Settling Properties of Traffic Paints During Storage
This standard is issued under the fixed designation D 1309; 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 4.3 Freezer, maintained at from − 5 to − 10°F (−21
to − 23.3°C).
1.1 This test method covers a laboratory procedure for
4.4 Oven, maintained at 160 6 2°F (71 6 1°C).
simulating in 2 weeks the settling that might occur in traffic
4.5 Lid Clips.
paint during approximately 12 months’ normal storage.
1.2 The values stated in inch-pound units are to be regarded
5. Procedure
as the standard. The values given in parentheses are for
5.1 Thoroughly mix the paint to be evaluated to a homoge-
information only.
neous consistency. Transfer enough of the paint to a 1-pt
1.3 This standard does not purport to address all of the
(500-mL) paint can to fill it to within ⁄2 in. (13 mm) of the top.
safety concerns, if any, associated with its use. It is the
Close the can tightly, securing the lid with four clips, and
responsibility of the user of this standard to establish appro-
subject it to the following exposure cycle.
priate safety and health practices and determine the applica-
5.1.1 Monday through Friday:
bility of regulatory limitations prior to use. For a specific
5.1.1.1 Place in freezer at 8:00 a.m.
hazard statement, see Note in 5.2.
5.1.1.2 Transfer to oven at 10:00 a.m.
2. Referenced Documents 5.1.1.3 Transfer to freezer at 2:00 p.m.
5.1.1.4 Transfer to oven at 4:00 p.m.
2.1 ASTM Standards:
5.1.2 From 4:00 p.m. Friday until 8:00 a.m. Monday:
D 869 Test Method for Evaluating Degree of Settling of
2 5.1.2.1 Place in the oven at 4:00 p.m. Friday.
Paint
5.1.2.2 At 8:00 a.m. Monday morning, after the can has
3. Significance and Use been in the oven over a weekend, place it in the freezer and
continue the cycles described above for another 7 days. Each
3.1 Paints, if not formulated or processed properly, or both,
time the can of paint is removed from the oven give it one
may settle excessively. This test method is an attempt to
sharp “spank” on the table top. The spank consists of a short
simulate the conditions that would accelerate settling of the
rapid jar of the bottom of the can of paint against the top of the
pigment in order to evaluate settling properties within 2 weeks.
table. The violence of the jar is such that if the bottom of the
The variables of this test method in conjunction with the very
can of paint were spanked against the platform of a scale
subjective method of evaluating the degree of settling (Test
instead of a table top the scale would register approximately 5
Method D 869) raise questions as to the usefulness of the
lb (2.27 kg) weight.
results for sp
...
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