OHS Code Explanation Guide

Published Date: July 01, 2009
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Part 36 Mining

Section 613 Stored explosives

Section 613(a)

Frequent examination is needed to ensure explosives are not deteriorating and becoming dangerous. For example, dynamite sticks “sweat” and produce nitroglycerine liquid. The liquid can be detonated with a fairly low-intensity vibration or impact. Similarly, ammonium nitrate blasting agent allows its diesel fuel to percolate down to the bottom, affecting the composition of the blasting agent and its performance when initiated. Regular examination and use of the explosives on the basis of first received, first used will avoid using explosives that have deteriorated due to an extended storage period.

Sections 613(b) and (c)

Deteriorated explosives must be carefully removed and destroyed by a blaster according to the manufacturer’s specifications. Destruction must be carried out at a remote location to ensure the safety of anyone involved in or near the operation.