A container on a vehicle or at the work site for holding daily requirements of explosives.

Under the AEC a category 2 load for the transport of explosives is up to 5000 detonators and 250 kg of explosives.

The charge carrier is a metal tube with spaced holes to accept perforating charges.

The charge carrier sits inside the gun body after loading. Picture below shows charge carrier being extracted from the gun body.

The area isolated by the nominated shotfirer to manage interaction during the loading of blasts.
This will include all holes to be charged plus a margin.

The charge site is to be demarcated by barriers which can include:

• Physical barriers, rills and windrows
• Visual barriers, signs and flagging tapes
• Communication, notice boards and shift start communications

Standard deviation expressed as a percentage of the mean.

The ground immediately surrounding the opening of a drill hole.

In underground terminology the collar may also refer to the uncharged length of the blast hole as below.

The charging of a drill hole with a continuous charge.

Those groups of explosives which can be stowed or carried together without significantly increasing either the probability of an accident or, for a given quantity, the magnitude of the effects of such an accident. On this criterion, explosives have been divided into a number of compatibility groups, each denoted by a code letter from A to L (excluding I), N and S.

(For further information see the Australian Dangerous Goods Code or the Australian Code for the Transport of Explosives by Road and Rail.)

For commercial blasting explosives the relevant compatibility groups are:

• D - Secondary explosives, may burn may explode
• B - Primary explosives, will explode
• S - Packaging contains the effects of any explosion

Notes:

It is because D (secondary explosives) and B (primary explosives) cannot be stored together (incompatible) that requires separate HE and Detonator magazines.

The Hazard Division is often used with compatibility group. Hazard division refers to the type of explosion hazard that exists. The Hazard Divisions that are relevant to shotfirers are:

• 1 - Mass explosion hazard
• 4 - No significant risk of a mass explosion hazard

Typical codes and examples are shown below:

The authority having jurisdiction for administering legislation covering the manufacture, transport, storage and handling of dangerous goods and / or explosives within a particular State or Territory. There may be more than one authority in an ANE supply chain.

A person who has acquired through training, qualification, experience or a combination of these, the knowledge and skill enabling that person to correctly perform the task.

A compliance audit is a comprehensive review of an organization's adherence to defined policies, procedures and guidelines. Audit reports evaluate the strength and thoroughness of compliance preparations, security policies, user access controls and risk management procedures over the course of a compliance audit

A specially designed portable source of electrical energy used to fire electric detonators.

Exel™ Connectadet™ Detonators are signal tube based detonators designed to control the millisecond delay sequence from hole to hole, across the surface of a blast.

The presence of an alert and authorised person or the continuous monitoring by video or electronic surveillance.

CPAN is chemically pure ammonium nitrate used for the manufacture of emulsion.

PPAN is porous prilled ammonium nitrate used for doping emulsion blends and the manufacture of ANFO.
PPAN contains voids that reduce the density to around 0.8

Crank lines are direction lines marked on the backs and floor to give guidance to the jumbo operator when turning corners.

Creating the pit left by an explosion.

A credible evacuation scenario is one with a high likelihood that within 45 minutes of the evacuation being initiated there is no person in a building inside Protected Works Class B distance and no person in the open inside Protected Works Class A distance. (Note that 45 minutes is the worst case – the target evacuation timeframe is 30 minutes.) Whether evacuation is credible can only be assessed on a site-specific basis. Refer Appendix D.

Critical Density is defined for mechanically sensitised explosives.

This is the density above which detonation fails. The failure is due to insufficient gas bubble to create hot spots when impacted by a shock wave.

Critical diameter is the minimum physical size a charge of a specific explosive must be to sustain its own detonation wave.

To determin the critical diameter a series of charges of smaller and smaller diameters are fired until difficulty in detonation wave propagation is observed.

A charge with a critical diamter more than the physical diameter of the charge will fail to maintain detonation.

A machine system which has been assessed to present unacceptable consequences if the machine or its protective system should fail.
This includes all failures or malfunctions, which could lead to danger to life or significant harm to any person or to the environment.

When emulsion explosives age the Ammonium Nitrate solution crystallises out. This occurs when the AN salts solidify and the product feel becomes gritty.

Crystallisation reduces the sensitivity of emulsions.