Acts and Regulations

91-191 - General

Full text
Handling of explosives and related matters
156A blaster shall ensure that
(a) blasting explosives and detonator products are kept and handled separately until the last practicable moment when the blaster primes the explosive;
(b) no explosive is primed in any place where explosives are stored;
(c) primed explosives are not slit or tamped;
(d) the wrapping is not removed from nitroglycerine-based products;
(e) only commercially manufactured safety fuse assemblies are used;
(f) safety fuse assemblies are not less than 1 m in length;
(g) time expired, deteriorated or damaged explosives are not used;
(h) where more than one drill hole is fired in any one round using safety fuses, the holes are fired by means of one igniter cord;
(i) where there is any danger to property or persons from flyrock from a blast, blasting mats of adequate size and strength are used;
(j) frozen explosives are used in accordance with the manufacturer’s recommended procedure;
(k) drill holes are of sufficient size to admit the free insertion to the bottom of the hole of the explosive to be used without ramming, pounding or undue pressure;
(l) only tamping rods of wood or other non-metallic, non-sparking material are used;
(m) drill holes are not tied in until the last practicable moment before firing and are fired in a single operation;
(n) no drilling is done in a previously blasted area until the surface to be drilled is exposed and carefully examined for remnants of explosives or holes containing explosives; and
(o) where remnants of explosives or holes containing explosives are found, the explosives are detonated or removed before drilling commences.
93-8