ASTM D1708-13 Tensile Properties of Plastics by Use of Microtensile Specimens
ASTM D1708-13 covers the determination of comparative tensile strength and elongation properties of plastics in the microtensile form. This method can be used for specimens with thickness up to 3.2 mm, including films. Performing this test method is used for comparative data, however this test method cannot be used for determination of modulus of elasticity. When measuring the modulus of elasticity, refer to ASTM D638 for rigid plastics or ASTM D882 for thin plastic sheeting.
The challenges of testing to this standard:
- Specimen gripping
- Jaw face selection
- Specimen gripping – When testing such small specimens, pivoting can occur in the jaw faces, leading to slippage throughout the testing. The 2712-05x Series miniature pneumatic grips enable a continuous clamping force throughout the test to account for any thinning of the material. For a manual solution, we recommend miniature wedge action grips.
- Jaw face selection – Rigid microtensile specimens typically require a serrated jaw face, however, this may result in premature failure when testing a more delicate specimen. The 2712-05x Series miniature pneumatic grips have a quick-change jaw face design, which allows users to easily change between a serrated jaw face for rigid specimens, and a rubber-coated face for more delicate materials.
We recommend reading and reviewing ASTM D1708-13 in order to fully understand the test setup, procedures, and results requirements.
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The 3300 series of testing machines address the requirements of standardized and routine static testing; and provides the user with Instron quality at the most affordable price.
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5900 Universal Testing Systems are engineered for precision, built for durability, and offer the flexibility for changing requirements. They are designed with standard and optional features that increase testing efficiency and improve the testing experience for the operator. A wide range of models are available for testing capacities from < 100N up to 600kN.
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The Instron 2712-05x Series Pneumatic Side-Action Grips offers a versatile gripping solution for a wide range of materials. Available in both 50 and 250 N options, the grip’s robust design is ideal for round (wires),fiber (mono-filaments), and flat specimens with or without shoulder.
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Instron® 2712-04x Series Pneumatic grips, packed with features to enhance gripping performance, usability, and operator safety.
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The Plastics Testing Solutions brochure is a 40-page, applications-focused, and standards-based brochure. Important standards such as ISO 527-1, -2, -3, ISO 11443, ISO 75, ASTM D638, Astm D3835, are covered in a detailed testing challenge and solution format. The brochure addresses the most prominent and widely-used standards in the materials testing industry for plastics. Test types such as Impact, Rheology, Thermo-Mechanical, Specimen Preparation, Mechanical Testing, Dynamic/fatigue, and Hardness are described in great detail.
- 2.1 MB