Glossary


glossary



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#12 strength

#12 strength and #8 strength refers to the base charge of a detonator.

Historically detonators were made in a range of strengths, #6 for underground coal (Carrick Detonators) and #8 for initiating gelatin dynamite. With the change to less sensitive explosives a stronger detonator was required so ICI / Orica made a  #8* which is equivalent to a #12 strength DYNO detonator.

There were also #2, #3, #4 detonators but these were for testing the sensitivity of explosives and were not used for blasting.

The modern surface delays with low energy base charges probably relate to a #1 strength detonator.

 

1

1.1A

1.1A is a hazard division for primary explosives.

1.1 Explosive with a mass explosion hazard.

A Primary Explosive

This applies to explosives like Lead Azide and Lead Styphnate

Explosives Class 1.1A often require special permission to ship and must be shipped wet.


Skip Manage Drill and Blast Operations 5 DAY MASTERCLASS