ASTM D1004 standard test method is used to measure the ultimate force required to tear a film or sheet and is used to check the quality of the material and compare the quality. The test procedure involves measurement of the average thickness of the specimen. The test specimen is placed in grips and pulled at a rate of 2 inches per minute until damage or rupture. The Die C specimen is used for the test.
The ASTM D1822 standard test method is used to measure the amount of force required to break a specimen under a high-speed tensile load through a swinging pendulum. Note the thickness and width of the test specimen and clamp to the crosshead. Place test specimen into the pendulum then release the pendulum to allow striking the anvil breaking. The tensile impact energy is noted and corrected.
ASTM D6290, ASTM E1347, ASTM E308 standard test methods allow an accurate definition of the test sample color. The color analysis is used to match adjacent molded from different materials or to determine the color change due to outdoor exposure. The surface texture, molding parameters, viewing light sources, and spectrophotometer readings could affect the Visual color and spectrophotometer readings.
Shear Strength Test
ASTM D732 standard test method is used to perform shear strength testing, which determines the load at which a plastic or film will yield when sheared between two metal edges. Shear strength results are crucial for designers of film and sheet products, or in applications where applied crushing loads are a risk. During the testing procedure, the test sample is attached to one-inch punch between two metal fixtures. A male punch is pushed through the hole in the fixture that causes shear along the edge of the hold.