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The Official Head‐Hardness Certification Program
Publication year - 1982
Publication title -
opflow
Language(s) - English
Resource type - Journals
eISSN - 1551-8701
pISSN - 0149-8029
DOI - 10.1002/j.1551-8701.1982.tb00035.x
Subject(s) - certification , head (geology) , vickers hardness test , forensic engineering , engineering , metallurgy , materials science , political science , geology , law , geomorphology , microstructure
In an effort to emphasize the importance of wearing hard hats, Frank M. Graham of Western Paving Construction Company in Denver, Colorado has developed a Head‐Hardness Certification Program. He suggests performing penetration, absorption, heat and chemical resistance, electrical, and impact tests on the head of those who dislike wearing hard hats.