IAGC LAND GEOPHYSICAL SAFETY MANUAL Edition 9 ... - CGISS

7) In the event of an approaching electrical storm, stop all operations. Lower the rigmast and move all personnel to a safe distance from the explosives magazines.4.1.5 Hole Loading, Explosives:1) Follow all safety procedures as recommended by the manufacturers of theexplosives and detonators.2) All employees working with explosives must be trained in proper handling anduse of the explosive.3) Both explosive and detonator day boxes must be made to regulatory standards ofthe country and be kept secured. Rigs will display the proper explosives placardsat all times when transporting explosives.4) Make sure the detonator is properly shunted before loading operations begin.5) Some soils cave in easily and make it difficult to keep the hole open. Where thehole must be loaded quickly, do not rush or forget the basic safety rules.6) Never prime or make up a charge prior to completion of the hole. A charge isconsidered primed when it has been fitted with a detonator. ALWAYS wait untilyou are ready to load the charge before inserting the detonator into the seismiccharge.7) Never place/hang the detonator spool on the drill rig while loading the hole. Thispractice may cause static build up and the premature detonation. Always hold thespool by hand.8) Never prime a charge and leave it laying around the rig site, work area or workdeck.9) ALWAYS use a blasting galvanometer to check a detonator. Do not use a Volt-Ohmmeter or other device not designed to check electric blasting caps.10) Before testing a detonator, ensure that the detonator is in a safe place beforeremoving the shunt to test.11) ALWAYS reshunt the detonator after checking the circuit.12) Never use a radio or any kind of radio transmitter when handling explosives. Thisincludes, but is not limited to, cellular phones, Global Positioning System (GPS)stations, FM (Frequency Modulation) or CB (Citizen Band) radios.13) Loading poles must be tipped with non-sparking material (brass or rubber).14) After drilling and loading the shot hole, backfill it with cuttings or anotherauthorized material. Avoid adding the backfill too quickly as this can causebridging (blockage). Place a shot hole plug near the surface as per localregulations to avoid wash in.14) Tamping or back filling personnel must never leave the area until the hole(s) havebeen tamped sufficiently such that the charges cannot be removed from the hole.Page 71 of 136