Blast Training International

Access to Exploasives of SSAN by a worker occurs under the supervision of an authority holder or authorised person, or when working in a defined supervised area as detailed in the security plan.

The shotfirer log book is the shotfirers personal record of blasting activity. As a minimum it should contain the shot ID, the dates and the activity carried out (prep, loading, firing, recovery)

Load, or Charge sheets define on a hole by hole basis how every individual hole in the blast pattern is to be loaded.

Pentolite is a high explosive used for military and civilian purposes e.g. warheads and booster charges.

Military pentolite comprises a mixture of 50% PETN and 50% TNT. A 50:50 mixture has a density of 1.65 g/cm3 and a detonation velocity of 7400 m/s. Civilian pentolite sometimes contains a lower percentage of PETN. Civilian pentolite has a detonation velocity of approximately 7,800 metres per second.

A material safety data sheet (MSDS), or product safety data sheet (PSDS) is an important component of product stewardship and occupational safety and health. It is intended to provide workers and emergency personnel with procedures for handling or working with that substance in a safe manner, and includes information such as physical data (melting point, boiling point, flash point, etc.), toxicity, health effects, first aid, reactivity, storage, disposal, protective equipment, and spill-handling procedures. MSDS formats can vary from source to source within a country depending on national requirements.

An area including all holes to be loaded plus such as required for safe loading operations.

Resembling a block in shape.

The burden is the distance between a blasthole which is to be fired and the nearest void or free space.

Note that two burdens are defined, the drilled burden as shown in the diagram and the dynamic burden which is the true burden at the instant the hole fires.

The dynamic burden is influenced by both the drilled burden and the delay timing.

The distance that the initiation system has functioned in front of the blast firing.