ASTM F1080-93(1998)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
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Designation: F 1080 – 93 (Reapproved 1998)
Standard Test Method for
Determining the Consistency of Viscous Liquids Using a
Consistometer
This standard is issued under the fixed designation F 1080; 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 5.2 Agitate 250 mL of the material to be tested using the
mixer set at 1600 r/min, for 1 min 65 s, or until a vortex forms
1.1 This test method describes a procedure for the determi-
that indicates all of the sample has been exposed to shear.
nation of the flow of a standard volume of a semisolid or thick
Avoid aeration of the sample as this may cause evaporation of
liquid under its own weight.
solvents.
1.2 This standard does not purport to address all of the
5.3 Place the consistometer on a level surface and adjust the
safety concerns, if any, associated with its use. It is the
leveling screws until the bubble is centered.
responsibility of the user of this standard to establish appro-
5.4 Close the consistometer gate and set the trigger.
priate safety and health practices and determine the applica-
5.5 Fill the consistometer reservoir with the material to be
bility of regulatory limitations prior to use.
tested (approximately 100 mL), and level the surface with a
1.3 The values stated in SI units are to be regarded as the
spatula or a straight edge.
standard. The values in parentheses are for information only.
5.6 Start the test by simultaneously tripping the consistom-
2. Summary of Test Method
eter gate trigger and starting the timing device. At 5 min 61s
(unless otherwise specified), read the distance the material has
2.1 A sample of the material to be tested is poured into a
flowed. Average the result to the nearest 0.5 cm by taking the
reservoir and the distance of flow in a horizontal direction is
maximum distance indicated in the center of the trough and
read from a ruled track after a fixed time following the
adding this to the minimum distance at the edge of the trough
materials release from the reservoir.
and dividing the result by two.
3. Significance and Use
6. Report
3.1 This measurement of flow gives results that cannot be
6.1 The report shall include the following:
predicted with viscosity measurements, due to surface tension
6.1.1 Material name or reference, type and lot number.
and density effects. The measured flow, is related to flow
6.1.2 Average distance of flow to nearest 0.5 cm.
performance of viscous materials sprayed on aircraft surfaces
6.1.3 Test temperature in °C to 61°C.
or other large structures.
6.1.4 Duration of test in minutes and seconds.
4. Apparatus
7. Precision and Bias
4.1 Consistometer constructed as described in Annex A1.
7.1 Precision:
4.2 Ti
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