http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Standard test methods for rockwell hardness of metallic materials
These test methods are under the jurisdiction of ASTM Committee E28 on Mechanical Testing and are the direct responsibility of Subcommittee E28.06 on Indentation Hardness Testing
Current edition approved Dec. 1, 2008, published January 2009. Originally approved in 1932. Last previous edition approved in 2008 as E 18-08a