ISO 8295: Standard for Plastics - Film and Sheeting - Determination of the Coefficients of Friction

Introduction

ISO 8295 is an international standard developed by the International Organization for Standardization (ISO) that specifies

 a method for determining the coefficients of friction of plastic film and sheeting. This standard is crucial in industries 

where the frictional properties of plastic materials impact product performance, handling, and packaging efficiency.

Scope and Purpose

The primary purpose of ISO 8295 is to provide a standardized test method for measuring both the static and kinetic 

coefficients of friction between two surfaces of plastic film or sheeting. These measurements are essential for:

Packaging applications – Ensuring smooth unwinding of plastic rolls, preventing sticking, and optimizing machine

 performance.

Manufacturing processes – Assessing how plastic films interact with conveyor belts, rollers, or other surfaces.

Quality control – Maintaining consistency in material properties for end-use applications.

Test equipment:PCF-03 Friction Coefficient Tester

PCF-03.jpg


Key Testing Conditions

To ensure reproducibility, ISO 8295 defines specific test conditions:

Sample preparation – Films should be conditioned at a standard temperature and humidity (typically 23°C ± 2°C and 

50% ± 10% RH).

Test speed – The pulling speed is set at 100 mm/min unless otherwise specified.

Contact area – The sled has a defined contact area (usually 63 cm²).

Surface condition – Both the sled and the base should be free of contaminants.

Significance in Industry

The frictional properties of plastic films influence:

Packaging machinery efficiency – High friction can cause jamming, while low friction may lead to slippage.

Stackability of bags and wraps – Proper friction ensures stable stacking without excessive adhesion.

User experience – Easy-to-open packaging requires optimized friction levels.

Conclusion

ISO 8295 provides a reliable and internationally recognized method for evaluating the frictional behavior of plastic films 

and sheets. By adhering to this standard, manufacturers can improve product design, enhance processing efficiency, and

 ensure consistent quality in packaging and industrial applications.

For businesses dealing with plastic films, compliance with ISO 8295 helps in meeting industry requirements and 

maintaining competitive product performance.

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