Mining Publication: Approved Explosion-Proof Coal-Cutting Equipment
Original creation date: February 1920
The first part of this bulletin deals with the general theory of protection from fire damp, gives the bureau's schedule, and shows its application to the testing of commercial apparatus. The second part covers a detailed description of the apparatus that has been tested and approved under this schedule, together with a resume of the tests on which the approvals were based.
NIOSH/USBM Numbered PublicationFebruary - 1920
NIOSHTIC2 Number: 20037559
U.S. Department of the Interior, Bureau of Mines. Bulletin 78, 1920 Feb; :1-53