Biafo Cord
Biafo cord is a flexible cord containing a core of high explosive PentraErythritol-TetraNitrate (PETN), which is covered with combination of various yarns and finally with an PVC/ LDPE coating. This process protects Biafo cord from extreme temperatures, water, oil or other elements and provides essential feature as tensile strength, flexibility and other handling characteristics. It can be initiated by use of a plain or an electric detonator.
Technical Specifications
|
Requirements
|
Spec. Values
|
Test Values
|
| Base Charge |
PETN |
PETN |
| Charge Weight | 10gm/m. Min |
10gm/m. Min
|
| Inner Consturction | Textile |
Textile |
| Finish layer | Polyethylene Coating |
Polyethylene Coating |
| Diameter |
5.5 mm Max.
|
5.2 mm
|
| Breaking Strength |
55kg. F. Min |
100 kg. F.
|
| Detonating velocity |
6000 m/s. Min
|
7000 m/s
|
| Explosive Classification |
Class 6 Div 2 UN Number 0289 1.4D
|
|
| Flame Sensitivity | The detonating cord shall not detonate. |
Pass |
| Impact Sensitivity | The detonating cord shall not detonate through the ends of the sample |
Pass |
| waterproofness |
The detonating cord shall withstand immersion in water for not less than 72 hours and should function satisfactorily |
Pass |
| Flexibility | The plastic coating shall not crack |
Pass |