ASTM D575-91: Standard Test Methods for Rubber Properties in Compression
ASTM D575 is a testing standard used to determine the stiffness of rubber materials in compression. ASTM D575 allows rubber suppliers to characterize the stiffness of the material they produce to help downstream manufacturers source the correct material for their components. Data collected from ASTM D575 testing is important for applications that require elastomeric materials subjected to compressive stresses. One wide-ranging application is the sealant industry, as due to its ease of extrusion and flexible nature, rubber is commonly used material for sealants.
Method A applies a predetermined deflection to the cylindrical specimen at which the force is recorded. Alternatively, Method B applies predetermined minor and major forces to the specimen and deflection is measured.
Materials Testing SystemDepending on maximum expected forces, ASTM D575 is performed on a single column or dual column universal testing system such as Instron's 3400 and 6800 Series systems. This system setup requires a matching load cell and upper and lower platens with diameters larger than the diameter of the specimen. Platens should have rigid connections to the frame and load cell, and must be rated to a load capacity which exceeds forces generated during the test.| ASTM D575 Test Setup | |
|---|---|
| 1) | 3400 Series Universal Testing System |
| 2) | Bluehill Universal Software |
| 3) | 2530 Series Load Cell |
| 4) | 2501 Series Compression Platens |
Though not required by the standard, parallelism can be ensured by including an integral spherical seat on the upper platen. Though crosshead displacement measurements are adequate for ASTM D575, those interested in the most accurate deflection measurement should consider using a 2601-04x Series linear variable displacement transducer.
| ASTM D575 Accessories | |
|---|---|
| 1) | Self-Aligning Spherical Seat |
| 2) | 2601-04x Series LVDT |
6800 Series Premier Testing Systems Brochure
Instron 6800 Series Universal Testing Systems provide unparalleled accuracy and reliability. Built on a patent-pending Operator Protect system architecture with an all-new Smart-Close Air Kit and Collision Mitigation features, the 6800 Series makes materials testing simpler, smarter, and safer than ever before.
3400 Series - Affordable Testing Solutions
Instron 3400 Series Universal Testing Systems for Tensile, Compression, Bend, and other material property tests.
Bluehill Universal Brochure
Bluehill Universal Software is built from the ground-up for touch interaction and an intuitive user experience. Discover simpler and smarter testing with features such as pre-loaded test methods, QuickTest in seconds, enhanced data exporting: and Instron Connect – a new feature that provides a direct communication link to Service. Users of previous versions of software such as Bluehill 2 and Bluehill 3 can easily upgrade to the newest version of Bluehill.
2501 Series Compression Platens
These easy-to-install compression platens are precisely machined fixtures that are designed for even distribution of compression loads during a test.
2601 Series LVDT Deflection Sensors
The 2601 Series Linear Variable Differential Transformer (LVDT) displacement transducers are measuring devices that measure the displacement of the load frames.