Light Duty Shock Cord is developed and manufactured in full accordance with BS3F71:1991 Specification for light duty braided rubber cord, which specifies a range of diameters of shock cord between 3mm to 11mm, Ibex Marina have extrapolated properties in order to extend this range to 25mm.
Light Duty Shock Cord is manufactured to this standard is suitable for use in cut lengths in parachute pack opening devices, for lightweight suspensions and other aeronautical purposes to BS SP 170-171,and in crane and tow systems where snatch loads or “elastic muscle” is needed.
The inner rubber threads are tightly encased in most diameters within two outer coverings of braid, typically either cotton or polyester, and these covers are date coded.
Aramid covers are also available.
BS3F71 LIGHT DUTY SHOCK CORD
| Dia. (mm) | 30% Min. (N) | 30% Max. (N) | 100% Min. (N) | 100% Max. (N) | Total Extension % |
|---|---|---|---|---|---|
| 3.0 | 5 | 7.5 | 7.5 | 11 | 150 |
| 4.0 | 9 | 14 | 14 | 20 | 150 |
| 5.0 | 14 | 22 | 22 | 31 | 150 |
| 5.5 | 17 | 26 | 26 | 40 | 150 |
| 6.5 | 25 | 36 | 36 | 53 | 125 |
| 8.0 | 37 | 55 | 55 | 80 | 125 |
| 9.5 | 54 | 78 | 78 | 114 | 125 |
| 11.0 | 70 | 104 | 104 | 152 | 125 |
All thicknesses must be +/- 0.5% of the nominal for British Standard
