The comparative explosive strength of a product to a reference explosive such as ANFO or TNT.

The mass of explosive material contained in an explosive.

An explosion which occurs which is not as a consequence of some other cause which would be obvious to an observer in the vicinity.

Noise sensitive place means any of the following places –

(a) a dwelling;

(b) a library, childcare centre, kindergarten, school, college, university or other educational institution;

(c) a hospital, surgery or other medical institution;

(d) a protected area, or an area identified under a conservation plan as a critical habitat or an area of major interest, under the Nature Conservation Act 1992;

(e) a marine park under the Marine Parks Act 1982;

(f) a park or garden that is open to the public (whether or not on payment of money) for use other than for sport or organised entertainment.

A person (in addition to the licence holder) who is named in the SP and is responsible for managing the implementation of the SP. This person must hold an unsupervised handling licence.

A detonator incorporating a length of shock tube as a means of initiation.

Non-electric detonators in standard packaging are Class 1.1B

A non-ferrous material is one that does not contain iron in appreciable amounts.

Examples of non-ferrous materials used in explosives manufacture, storage and transport include:

Timber lining of magazines secured with copper or bronze nails.

Carry boxes on light vehicle carry boxes manuifactured from aluminium.

Gutta-Percha, a natural rubber, used in the manufacture of very sensitive primary explosives.

High temperature explosive used in well perforation

Nonex
The Nonex system has undergone extensive research and development in the UK and Spain. In the UK it has a niche market for particular use in slate mines where it is necessary to keep large slabs of the rock intact, and also for the breaking and removal of slate from within the mine shaft. The Nonex system consists of a cartridge which contains a propellant which when ignited produces high volumes of harmless gases such as nitrogen and carbon dioxide are released, providing a pressure increase when the cartridge is sealed in a drillhole. Nonex is particularly suited in situations where the rock is not required to be fractured, but rather, split as it does not cause the rock to shatter. Nonex is classified as a 1.4S pyrotechnic rather than as an explosive. This has a major impact on insurance premiums and they are much lower for sites which use Nonex exclusively over conventional explosives. The product is electrically initiated, and the ignition system is built in to the cartridge. The product is water resistant, which is another advantage over many conventional explosives.

The bell shaped symmetrical curve used in statistical analysis to generate the relative frequency of occurrence of natural events.

Detonator timing may be normally distributed at the average, although due to manufacturing it is more likely to be skewed to a shorter delay.