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Code of Federal Regulations

ECFRcf260f0b5f2b3a6

Electric Blasting

56.6400Compatibility of electric detonators.56.6401Shunting.56.6402Deenergized circuits near detonators.56.6403Branch circuits.56.6404Separation of blasting circuits from power source.56.6405Firing devices.56.6406Duration of current flow.56.6407Circuit testing.