PERUNIT® E
The underground mining explosive PERUNIT® E is an explosive of a dynamite type with a high content of energy, high denisty and high values in detonation velocity. It is used in underground workplaces in an unexplosive environment and on surfaces where the character of the material broken requires the use of a powerful explosive. Large diameter explosive cartridges are suitable primarily for initiating explosives.
This traditional explosive was innovated again in 2007 and does not contain DNT and TNT, which are dangerous to human health.
Classification: UN0081, EXPLOSIVE, BLASTING, TYPE A, 1.1 D, ADR
| Parameter | Unit of measure | PERUNIT® E |
|---|---|---|
|
Explosion heat |
kJ/kg |
min. 4,100 |
|
Gas volume |
dm3/kg |
858 |
|
Temperature of explosion |
°C |
min. 3,000 |
|
Oxygen balance |
% O2 |
+ 2.2 |
|
Velocity of detonation (in 65mm, non confined) |
m/s |
6,200 |
|
Velocity of detonation (in 28mm, non confined) |
m/s |
2,400 |
|
Velocity of detonation in the borehole (in 95mm) |
m/s |
6,200 |
|
Brisance according to Hess |
mm |
min. 14 |
|
Relative working ability |
% |
min. 78 |
|
Transmission of detonation |
cm |
min. 4 |
|
Density |
kg/m3 |
min. 1,300 |
|
Firing |
– |
detonator no. 8 |
|
Water resistance (large diameter cartridges) |
– |
12 hrs/ 0.3 MPa |
|
Water resistance (small diameter cartridges) |
– |
2 hrs/ 0.01 MPa |
|
Smallest permitted diameter |
mm |
28 |
|
Shelf life |
month |
12 |