@misc{1345836, author = {Louise Ahure Powell and Carlos Beauchamp and Renato Machado and Antonio Possolo}, title = {Certification Report for SRM 2810a, 2811a, and 2812a: Rockwell C Scale Hardness – Low, Medium, and High Ranges}, year = {2026}, month = {2026-08-05 04:08:00}, publisher = {Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD}, url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=962145}, doi = {https://doi.org/10.6028/NIST.SP.260-269}, language = {en}, }