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1
Reissue of I10-V-05, measuring methane levels at underground coal mines using belt air to ventilate working sections.
“…United States. Mine Safety and Health Administration…”
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Government Document Online Book -
2
Re-issue P01-05 reporting "sampling start time" on redesigned dust data card.
“…United States. Mine Safety and Health Administration…”
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Government Document Online Book -
3
Re-issue of P97-24 portable methane detectors magnetically attached to mining machinery (the "gizmo").
“…United States. Mine Safety and Health Administration…”
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Government Document Online Book