ASTM D1309-93(2010)

Standard Test Method for Settling Properties of Traffic Paints During Storage

SIGNIFICANCE AND USE
Paints, if not formulated or processed properly, or both, may settle excessively. This test method is an attempt to simulate the conditions that would accelerate settling of the pigment in order to evaluate settling properties within 2 weeks. The variables of this test method in conjunction with the very subjective method of evaluating the degree of settling (Test Method D869) raise questions as to the usefulness of the results for specification compliance.
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 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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 health practices and determine the applicability of regulatory limitations prior to use. For a specific hazard statement, see Note in 5.2.

General Information

• Status: Historical
• Publication Date: 30-Nov-2010
• ICS: 87.040 - Paints and varnishes
• ICS: 93.080.30 - Road equipment and installations
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.44 - Traffic Coatings

Relations

• Replaces: ASTM D1309-93(2004) - Standard Test Method for Settling Properties of Traffic Paints During Storage
• Effective Date: 01-Dec-2010
• Replaced By: ASTM D1309-93(2015) - Standard Test Method for Settling Properties of Traffic Paints During Storage (Withdrawn 2020)
• Effective Date: 01-Jun-2015
• Referred By: ASTM D869-21 - Standard Test Method for Evaluating Degree of Settling of Paint
• Effective Date: 01-Dec-2010
• Referred By: ASTM F940-99(2019)e1 - Standard Practice for Quality Control Receipt Inspection Procedures for Protective Coatings (Paint), Used in Marine Construction and Shipbuilding
• Effective Date: 01-Dec-2010
• Referred By: ASTM C1315-19 - Standard Specification for Liquid Membrane-Forming Compounds Having Special Properties for Curing and Sealing Concrete
• Effective Date: 01-Dec-2010
• Referred By: ASTM C309-19 - Standard Specification for Liquid Membrane-Forming Compounds for Curing Concrete
• Effective Date: 01-Dec-2010

Standards Content (Sample)

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: D1309 − 93 (Reapproved2010)
Standard Test Method for
Settling Properties of Traffic Paints During Storage
This standard is issued under the fixed designation D1309; 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 4.2 Spatula, weighing 45 6 1 g with square-end blade 125
3 13
mm (4 ⁄4 in.) in length and approximately 20 mm ( ⁄16 in.) in
1.1 This test method covers a laboratory procedure for
width. A suitable spatula may be prepared by cutting the tip
simulating in 2 weeks the settling that might occur in traffic
from an ordinary 125-mm (5-in.) flexible steel laboratory
paint during approximately 12 months’ normal storage.
spatula to the specified length.
1.2 The values stated in SI units are to be regarded as the
4.3 Freezer, maintained at from −21 to − 23.3°C ( − 5 to
standard. The values given in parentheses are for information
− 10°F).
only.
4.4 Oven, maintained at 71 6 1°C (160 6 2°F).
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4.5 Lid Clips.
responsibility of the user of this standard to establish appro-
5. Procedure
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. For a specific 5.1 Thoroughly mix the paint to be evaluated to a homoge-
neous consistency. Transfer enough of the paint to a 500-mL
hazard statement, see Note in 5.2.
(1-pt) paint can to fill it to within 13 mm ( ⁄2 in.) of the top.
Close the can tightly, securing the lid with four clips, and
2. Referenced Documents
2 subject it to the following exposure cycle.
2.1 ASTM Standards:
5.1.1 Monday through Friday:
D869 TestMethodforEvaluatingDegreeofSettlingofPaint
5.1.1.1 Place in freezer at 8:00 a.m.
5.1.1.2 Transfer to oven at 10:00 a.m.
3. Significance and Use
5.1.1.3 Transfer to freezer at 2:00 p.m.
3.1 Paints, if not formulated or processed properly, or both,
5.1.1.4 Transfer to oven at 4:00 p.m.
may settle excessively. This test method is an attempt to
5.1.2 From 4:00 p.m. Friday until 8:00 a.m. Monday:
simulate the conditions that would accelerate settling of the
5.1.2.1 Place in the oven at 4:00 p.m. Friday.
pigmentinordertoevaluatesettlingpropertieswithin2weeks.
5.1.2.2 At 8:00 a.m. Monday morning, after the can has
The variables of this test method in conjunction with the very
been in the oven over a weekend, place it in the freezer and
subjective method of evaluating the degree of settling (Test
continue the cycles described above for another 7 days. Each
MethodD869)raisequestionsastotheusefulnessoftheresults
time the can of paint is removed from the oven give it one
for specification compliance.
sharp “spank” on the table top. The spank consists of a short
rapid jar of the bottom of the can of paint against the top of the
4. Apparatus
table. The violence of the jar is such that if the bottom of the
can of paint were spa
...