ASTM D2240
Standard Test Method for Rubber Property—Durometer Hardness
Welcome to our ASTM D2240 testing services page for evaluating “Shore hardness” as part of our analysis of plastics and polymers. This standard, ASTM D2240, also known as “Rubber Property—Durometer Hardness,” allows for the measurement of a material’s hardness by indenting the material with a standardized tip under a defined force. The depth of indentation is proportional to the Shore hardness and ductility of the material as well as the geometry of the indentation tip used.
ASTM D2240: Shore Hardness Testing for Plastics and Polymers
The ASTM D2240 test involves pressing the indentation tip against the material to be characterized. The hardness is then read directly on the device’s scale. This testing method is frequently used to test composites and polymers and is often employed in accelerated aging tests to monitor the evolution of mechanical properties in relation to exposure. Other tests, such as measuring tensile strength and elongation, can also be used. However, one of the advantages of Shore hardness is that it is non-destructive.
Utility and Advantages of ASTM D2240
ASTM D2240 allows for the measurement of initial hardness or indentation hardness after a given time. The test involves applying a constant force without impact and then measuring the hardness. A total of twelve hardness scales are used without a mathematical link between increments; they are simply arbitrary. However, it is important to determine the appropriate scale based on the laboratory.
This test offers several significant advantages, including:
- Precise evaluation of material durability and strength.
- Assistance in selecting the optimal material for your specific needs.
- Compliance with international standards, ensuring global