@misc{1158786, author = {Samuel R Low}, title = {NIST recommended practice guide ::Rockwell hardness measurement of metallic materials/}, year = {2001}, month = {2001-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.SP.960-5}, language = {en}, }