ASTM D1894 – Standard Test Method for Static and Kinetic Coefficients of Friction of Plastic Film and Sheeting (COF)
Determining the Coefficients of Friction (COF) of Films
ISO 8295, ASTM D1894, JIS K 7125, DIN 53375, ASTM D2534, TAPPI T549, and TAPPI T664 su64
Determination of the static and dynamic coefficient of friction is particularly interesting for films that are further processed on packaging and printing machines. Coefficients of friction provide information about the processability and the surface structure, which is important for determining the printability of the material.
The static and dynamic coefficient of friction for flexible films can be easily measured on a static testing machine with an additional fixture. This standard test is defined in many standards.
ASTM D1894 – 14 Standard Test Method for Static and Kinetic Coefficients of Friction of Plastic Film and Sheeting
This test method covers determination of the coefficients of starting and sliding friction of plastic film and sheeting when sliding over itself or other substances at specified test conditions. The procedure permits the use of a stationary sled with a moving plane, or a moving sled with a stationary plane. Both procedures yield the same coefficients of friction values for a given sample.
Note —For the frictional characteristics of plastic films partially wrapped around a cylinder, or capstan, see Test Method G143 under the jurisdiction of ASTM Subcommittee G02.50.
Note —This test method is not equivalent to ISO 8295–1995, and results cannot be directly compared between the two methods.
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For plastic film and sheeting: ISO 8295, ASTM D1894
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For paper and board: ISO 15359, TAPPI T549