Answer :
Final answer:
ASTM International, formerly known as the American Society for Testing and Materials, is an international standards organization that develops and publishes technical standards. The ASTM standards for the Rockwell test include ASTM E18, ASTM E110, and ASTM E18.05.
Explanation:
ASTM International, formerly known as the American Society for Testing and Materials, is an international standards organization that develops and publishes technical standards for a wide range of materials, products, systems, and services. The organization provides a framework for creating and updating standards through a consensus-based process involving industry experts.
The Rockwell test is a commonly used hardness test to determine the hardness of a material. It measures the depth of penetration of an indenter into the material under a specified load. ASTM has developed standards specifically for the Rockwell test to ensure consistent and accurate measurements across different laboratories and industries.
The ASTM standards for the Rockwell test include:
- ASTM E18 - Standard Test Methods for Rockwell Hardness of Metallic Materials
- ASTM E110 - Standard Test Method for Rockwell and Brinell Hardness of Metallic Materials by Portable Hardness Testers
- ASTM E18.05 - Standard Test Methods for Rockwell Hardness of Metallic Materials (Co-sponsored by ASTM Committee E28 on Mechanical Testing)
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