ASTM D1004 | Plastic Films | Tension Testing
ASTM D1004 is a test method that determines the tear strength of flexible plastic film and sheeting at very low rates of loading using a constant-rate-of crosshead-movement type tensile testing machine. Tearing is produced in a small area of stress concentration of the plastic film or sheeting specimen at controlled speeds below the rate encountered in real world applications in order to produce the most reliable data, which can be used to compare and analyze the tear resistance. Actual use of performance in tearing of certain plastics may not necessarily corralate with the data acquired from this test method.
Before conducting ASTM D1004, it is important to read the entire specification in the relevant ASTM publication.
ASTM D1004 | Plastic Films | Tension Testing
- Prepare the test specimens as described in the method.
- Set the distance between the clamps at 25.4 mm (1 in). ADMET recommends the use of a scale or calipers to measure this distance.
- Zero the load and position.
- Place the specimen in the upper and lower grips per the ASTM specification.
- Start test at the rate specified in the standard.
- Stop test after the complete rupture of the specimen.
Calculations:
- Tear Resistance
- Maximum Extension
ASTM D1004 | Plastic Films | Tension Testing
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