Laboratory evaluation of RACAL "airstream" helmet
Series: IR -- 1130; Informational report (United States. Mine Safety and Health Administration) -- IR 1130.
Publisher: U.S. Dept. of Labor, Mine Safety and Health Administration
Published: 1981
Place of publication: [Washington, D.C.?]
Language: eng
Subjects: Coal mines and mining; Dust control; Mine dusts; Safety measures; Safety hats