Instruments for Detecting Gas in Underground Mines and Tunnels.
NTIS: PB 210 991 :16 pages
Toxic and explosive atmospheres are discussed, along with some of the instruments commercially available for their detection. No attempt has been made to evaluate the accuracy of any one device. This circular has been prepared primarily to aid mine inspectors in selecting suitable instruments for underground gas detection.
IH; Information Circular;
NTIS Accession No.
NTIS: PB 210 991