I found this (free) PDF booklet to be helpful for learning the basics of how Rockwell hardness data is measured, including some of the details of how labs should make high-quality measurements. Several machines for making these measurements are also described, and are sold by this company.
If you paste this link into your browser, it will provide a viewable or downloadable PDF file:
http://www.instron.us/wa/library/StreamFile.aspx?doc=1154
The wikipedia article on Rockwell hardness is also informative, and was my original source of the above link.
http://en.wikipedia.org/wiki/Rockwell_hardness_scale
I hope that others find this to be helpful.
If you paste this link into your browser, it will provide a viewable or downloadable PDF file:
http://www.instron.us/wa/library/StreamFile.aspx?doc=1154
The wikipedia article on Rockwell hardness is also informative, and was my original source of the above link.
http://en.wikipedia.org/wiki/Rockwell_hardness_scale
I hope that others find this to be helpful.
