ASTM D5748 Protrusion Puncture Resistance of Stretch Wrap Film Test Machine

ASTM D5748 Protrusion Puncture Resistance of Stretch Wrap Film Test Machine
ASTM D5748 – 95(2019) 

Standard Test Method for Protrusion Puncture Resistance of Stretch Wrap Film

4.1 Puncture resistance is very important in end-use performance of stretch wrap film used in consumer and industrial product applications. Puncture resistance is a measure of the energy-absorbing ability of a stretch wrap film in resisting a protrusion. The test method is designed to provide the user with a means of measuring the stretch wrap film’s puncture resistance performance under essentially biaxial deformation conditions. A biaxial stress is representative of the type of stress encountered by stretch wrap products in many end-use applications.

4.2 Although this test method cannot be expected to duplicate all field experiences, since the rate of speed, weight, and configuration of such destructive forces vary widely, a generally reliable comparison of samples may be made from the data obtained.

 Scope

1.1 This test method determines the resistance of a stretch wrap film to the penetration of a probe at a standard low rate, a single test velocity. Performed at standard conditions, the test method imparts a biaxial stress that is representative of the type of stress encountered in many product end-use applications. The maximum force, force at break, penetration distance, and energy to break are determined.

Keywords

Biaxial Stress – Penetration – Plastic Film, Sheet And Tapes – Plastic Films – Puncture Resistance – Puncture Test – Strength – Stress And Strain – Stretch Wrap Films

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