ASTM D412 Test Guide: Tensile Testing for Elastomers
TensileNever use standard manual screw grips; vulcanized rubber narrows drastically under tension and requires self-adjusting pneumatic jaws.
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Never use standard manual screw grips; vulcanized rubber narrows drastically under tension and requires self-adjusting pneumatic jaws.
Meticulously document the exact failure mode split: R (Rubber Failure), RC (Rubber-Cement), CP (Cement-Primer), or M (Metal Interface).
Coat the internal walls of the confinement fixture with a micro-thin layer of silicone grease or mineral oil to completely…
Apply a thin, uniform layer of silicone oil or petroleum jelly to platens to minimize interfacial friction coefficients.
Always verify the cutting die blades under magnification regularly; a single micro-nick on the blade face creates invalid, low-value specimen…