ASTM F1080-93(2008)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: F1080 − 93(Reapproved 2008)
Standard Test Method for
Determining the Consistency of Viscous Liquids Using a
Consistometer
This standard is issued under the fixed designation F1080; 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 5. Procedure
1.1 This test method describes a procedure for the determi- 5.1 Bring the material to be tested and the apparatus to the
nation of the flow of a standard volume of a semisolid or thick
same ambient temperature in the range from 20 to 25°C (68 to
liquid under its own weight. 77°F).
1.2 The values stated in SI units are to be regarded as the
5.2 Agitate 250 mL of the material to be tested using the
standard. The values in parentheses are for information only.
mixer set at 1600 r/min, for 1 min 6 5 s, or until a vortex forms
that indicates all of the sample has been exposed to shear.
1.3 This standard does not purport to address all of the
Avoid aeration of the sample as this may cause evaporation of
safety concerns, if any, associated with its use. It is the
solvents.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
5.3 Place the consistometer on a level surface and adjust the
bility of regulatory limitations prior to use.
leveling screws until the bubble is centered.
5.4 Close the consistometer gate and set the trigger.
2. Summary of Test Method
5.5 Fill the consistometer reservoir with the material to be
2.1 A sample of the material to be tested is poured into a
tested (approximately 100 mL), and level the surface with a
reservoir and the distance of flow in a horizontal direction is
spatula or a straight edge.
read from a ruled track after a fixed time following the
materials release from the reservoir. 5.6 Start the test by simultaneously tripping the consistom-
eter gate trigger and starting the timing device. At 5 min 6 1
3. Significance and Use s (unless otherwise specified), read the distance the material
has flowed. Average the result to the nearest 0.5 cm by taking
3.1 This measurement of flow gives results that cannot be
the maximum distance indicated in the center of the trough and
predicted with viscosity measurements, due to surface tension
adding this to the minimum distance at the edge of the trough
and density effects. The measured flow, is related to flow
and dividing the result by two.
performance of viscous materials sprayed on aircraft surfaces
or other large structures.
6. Report
4. Apparatus 6.1 The report shall include the following:
6.1.1 Material name or reference, type and lot number.
4.1 Consistometer constructed as described in Annex A1.
6.1.2 Average distance of flow to nearest 0.5 cm.
4.2 Timing Device accurate to 61s.
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