testmachines

ASTM D648 for Deflection Temperature of Plastics The heat deflection temperature (HDT) describes the temperature at which a plastic material starts to deform under a predetermined load. This value is used in materials testing to evaluate the thermal resistance of a material. It is measured by subjecting a defined specimen to an increasing temperature under constant load

ASTM D3574 Standard Test Methods for Flexible Cellular Materials—Slab, Bonded, and Molded Urethane Foams ASTMD 3574 apply to slab, bonded, and molded flexible cellular products known as urethane foams. Urethane foam may be generally defined as an expanded cellular product produced by the interaction of active hydrogen compounds, water, and isocyanates. Summary of Test methods

ASTM D1894 coefficient of friction plastic films and sheeting This test method covers determination of the coefficients of starting and sliding friction of plastic film and sheeting when sliding over itself or other substances at specified test conditions. The procedure permits the use of a stationary sled with a moving plane,or a moving sled with a stationary plane. Both procedures yield the same coefficients of friction values for a given sample.

ASTM D882 Standard Test Method for Tensile Properties of Thin Plastic Sheeting ASTM D882 is a standard test method for determining the tensile properties of thin plastic films with a thickness of less than 1.0 mm (0.04 in) and is of great importance in the film packaging industry, both for quality control and research and development. Note 1—Film

Industry Standard – Plastics – ASTM D412 The ASTM D412 standard defines procedures used to evaluate the tensile (tension) properties of vulcanized thermoset rubber and thermoplastic elastomers. The methods appear as follows: Test Method A—Dumbbell and Straight Section Specimens; Test Method B-Cut Ring Specimens. (These two different methods do not produce identical results.) The values stated in

ASTM D3330 Standard Test Method for Peel Adhesion of Pressure-Sensitive Tape ASTM D3330 describes methods for determining the peel adhesion of pressure-sensitive tape. It encompasses various methods for evaluating the adhesive properties of both single-coated and double-coated tape as well as adhesive transfer tape. Additional test methods for determining the adhesive force of tape are described

ASTM D790 3-Point Flexure Test on Plastics The ASTM D790 standard describes a test method used to determine the flexural properties of unreinforced and reinforced plastics, including high modulus composites and electrical insulating materials. Typical test results according to ASTM D790 include the flexural modulus, stresses and strains at the yield point, the flexural strength

ASTM D695 Compression Test on Plastics The ASTM D695 standard describes the compression test for determination of mechanical characteristics such as the Young’s modulus and strength for unreinforced and reinforced plastics according to the end loading compression principle. The force is applied solely via the end faces of the test specimen. The following text is