ASTM D (D ) covers multiple properties of O-Rings. Part of the specification includes tension testing for determining the breaking. AMS and MIL-R Type 1 Class 1 Typical Values. Hardness, Shore A, ASTM D 90 ±5. Tensile Strength, psi, ASTM D min. ASTM D Standard Test Methods for Rubber O-Rings.
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These materials tend to elongate extensively so attention must be made to the total stroke of the tensile tester. Subscribe to Our Newsletters.
ASTM D – 15 Standard Test Methods for Rubber O-Rings
Pre-canned test methods are also available for both o-ring and straight specimens to make setup time faster and easier. They are designed with standard and optional features that increase testing efficiency and improve the testing experience for the operator. Email addresses can only contain letters, numbers and the following special characters: Email addresses must contain the symbol.
The upper spindle rotates freely and the rotation frequency of the lower spindle is easily selected by moving the toothed belt from one pulley to another.
These specimens can be tested as whole rings or as straight, cylindrical specimens. How can we help you?
Some advanced calculations including elongation modulus can also be derived from the data. The Rubber O-Ring test standard uses a special motorized fixture that rotates at fixed speed throughout the test.
ASTM D1414 Rubber O-Rings
If your O-ring specimens d414 within the allowed criteria, they can be tested with a static fixture. In some cases, a special type of oil may be used to alleviate friction between the ID of the O-ring and the grip surface.
Concrete, Asphalt and Rock. It is recommended that groups of samples are tested s1414 the data is compared using a method similar to Statistical Process Control. Cracking, flaking, general brittleness, and other characteristics can appear in the rubber O-rings when they are exposed c1414 temperature cycles and solar radiation. Please confirm that you agree with our privacy and cookies policy to submit this form.
In some cases, Instron elastomeric rubber grips have also asmt found to work well. This simple circular elastomer design is interesting since O-rings are used in so many sealing applications. Designed for testing elastomeric materials in the form of rings, these fixtures avoid local stress concentrations by using a lower spindle that is rotated by a toothed belt driven from the moving crosshead.
ASTM D specifies the procedures for determining the physical properties of o-rings.
Check this box to receive pertinent commercial email from Instron focusing on products, upcoming events, and more! The constant gripping force prevents specimen slippage while under test. Elongation and tensile strength are the two main calculations.
Our Series Elastomeric “O” Ring Test Fixtures were designed to accurately d14144 the requirements, and conveniently avoid the need for lubricants or external power motors. Software for Series Systems. Fixture – The standard specifies a fixture consisting of two spools to hold an o-ring while under test. Subscribe to Instron News!
ASTM D – Rubber O-Ring Testing Fixture
The fixture ships complete with a power adapter for both US and International power outlets. Consideration needs to be made for the fixture geometry spool separation and diameter as well as specimen geometry.
Top top grip has a counterweight to allow for even loading. The rotation keeps localized stress moments on the sample to a minimum. Bluehill LE for Basic Testing. The versatility of an O-ring allows it to function in multiple modalities.
WaveMatrix 2 for Dynamic Testing. Specimen gripping Specimen slippage Calculations Our solutions: