Compliance work

Overall migration Sensory analysis

Material analysis

Mechanical properties

permeation

PPWR/ Recycling

coefficient of friction COF

Determination of the static (static friction) µs and kinetic coefficient of friction (sliding friction) µD

In short — AI-generated

The coefficient of friction (COF) test measures the resistance encountered when two surfaces of a plastic film slide against each other. A sled with a defined weight is pulled across the film surface at a constant speed to determine both the static friction required to initiate movement and the kinetic friction during continuous sliding.

The resulting values indicate how easily a packaging material can be processed on automated machines or how well stacked packages will slide against each other. Low COF values are typically required to prevent jamming in high-speed filling lines, while higher values provide stability for palletized goods.

Text is AI-generated; based on test method data curated and verified by Innoform.

Test Method Group: Mechanical properties

Norms:
  • ASTM D 1894 (2024) Standard Test Method for Static and Kinetic Coefficients of Friction of Plastic Film and Sheeting
  • DIN EN ISO 8295 (2004-10) Plastics – Film and sheeting – Determination of the coefficients of friction

Required Sample Amount: Small reel (if not available: film stack or hand roll WITHOUT folds, kinks and contaminations etc.), at least an area of approx. 3 x DIN A 4 per surface to be tested.

Standard Tests

Coeffient of friction acc. DIN EN ISO 8295

Specific Norm: DIN EN ISO 8295

Determination of coefficient of friction (COF)

Coefficient of friction acc. ASTM D 1894

Specific Norm: ASTM D 1894

Determination of coefficient of friction (COF) according ASTM D 1894.
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