E. Blasting Practices
- Section 70-622 - Blasts fired in mine using safety lamps only by permission of mine foreman
- Section 70-623 - Tight cartridge not to be rammed into hole
- Section 70-624 - Tamping tools of nonmetallic material
- Section 70-625 - Examination made before and after firing blast in gassy mine
- Section 70-626 - Blast not to be fired where methane is detected by flame safety lamp
- Section 70-627 - Explosive which has misfired not to be withdrawn or hole reopened
- Section 70-628 - Thirty minute waiting period before returning to misfired hole
- Section 70-629 - Explosives misfired-Hole to be removed by drilling hole two feet distant
- Section 70-630 - Search for explosives after detonating misfired hole
- Section 70-631 - Handling of misfired blast under supervision of mine foreman
- Section 70-632 - Leg wires of electric detonators to be kept shunted
- Section 70-633 - Power or signal circuit not to be used to fire blast
- Section 70-634 - Mixed type of explosives not to be used in same blast hole
- Section 70-635 - Miner to give sufficient alarm before firing blast
- Section 70-636 - Mudcaps or other unconfined shots shall not be fired underground
- Section 70-637 - Gas ignited by blast to be extinguished and mine foreman notified