Coefficient of Friction ASTM D1894

Coefficient of Friction ASTM D1894

Scope:
The test is used to determine the kinetic (moving) and static (starting) resistance of one surface being dragged across another.

Test Procedure:
A specimen is attached to a sled of specified weight. The sled is pulled across a second surface at a speed of 150 mm/minute. The force to get the sled started (static) and to maintain motion (kinetic) is measured.

Specimen size:
Individual 64mm (2.5 in) square specimens along with a 254mm x 127mm (10 x 5 in) second surface.

Data:
Both static and kinetic coefficient of friction can be calculated. The static coefficient of friction is equal to the initial force scale reading divided by the sled weight. The kinetic coefficient of friction is equal to the average force reading obtained during uniform sliding of the surfaces divided by the sled weight. All measurements are in grams.

**Please note that this test description is intentionally generic in nature and aimed at providing a descriptive summary to enhance test understanding. Due to copyright restrictions, we are not able to provide copies of standards. Standards can be obtained from appropriate standards authorities.
 
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