ASTM D785-08 PDF

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Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes. Learn More. Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards.

Validating the specifications, value and safety of your raw materials, products and assets. Formally confirming that your products and services meet all trusted external and internal standards.

Scope: The Rockwell Hardness test is a hardness measurement based on the net increase in depth of impression as a load is applied. Higher numbers indicate harder materials. Test Procedure: A standard specimen is placed on the surface of the Rockwell Hardness tester.

A minor load is applied and the gauge is set to zero. The major load is applied by tripping a lever. After 15 seconds the major load is removed. The specimen is allowed to recover for 15 seconds and then the hardness is read off the dial with the minor load still applied. Specimen size: A standard specimen of 6. The higher the number in each scale, the harder the material. R and M scales are commonly used with plastics.

Standards can be obtained from appropriate standard authorities. Intertek Global Website. Toggle navigation Intertek. Industries Services. Assurance Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes. Testing Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. Inspection Validating the specifications, value and safety of your raw materials, products and assets.

Certification Formally confirming that your products and services meet all trusted external and internal standards. Assurance Testing Inspection Certification. Through our network of over 46, people in 1, laboratories and offices in countries, Intertek provides quality and safety solutions to a wide range of industries around the world. Find out more. Global Reach Intertek is the industry leader with over 46, people in 1, locations in over countries.

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Rockwell Hardness ASTM D785, ISO 2039

Historical Version s - view previous versions of standard. More D Indenters are round steel balls of specific diameters. Rockwell hardness numbers are always quoted with a scale symbol representing the indenter size, load, and dial scale used. This test method is based on Test Methods E

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