Jenny from Canada shared ASTM D882-18,whose title is Standard Test Method for Tensile Properties of Thin Plastic Sheeting.
ASTM D882-18 covers the determination of tensile properties of plastics in the form of thin sheeting and films.
A specimen of uniform cross-section is loaded in tension via means of a mechanical testing machine. Force and or extension are recorded during the test. Various techniques for specimen gripping and extension measurement are addressed.Depending on the elongation of the material and the desired properties to be gained from the testing, various combinations of grip separation and test speed are utilized. Properties such as tensile stress, elongation and modulus can be calculated.
Toe compensation shall be made in accordance with Annex A1 unless it can be shown that the toe region of the curve is not due to the takeup of slack, seating of the specimen,or other artifact, but rather is an authentic material response.
Keywords of ASTM D882-18:modulus of elasticity; plastic film; plastic sheeting;tensile properties; tensile strength; toughness; yield stress.