PAS 68:2007. Dynamic impact test.


The impact conditions of the test were met with a total test mass of 1500 kg at a speed of 48km/h and at an angle of 90° to the line of the impact face.

The test was conducted with 4 Ram Bags. The bags were interconnected using 12 No: bolts threaded through webbing loops made from straps surrounding the bags. Each bag was of a triangular cross section with walls 335mm thick and filled with water. The vehicle hit the centre of the 4-unit Ram Bag as designed and on impact the centre two bags ruptured spraying the vehicle with water. The structure then gave way allowing the vehicle to come to a halt without major damage.

The vehicle could not be removed from the Ram Bags until the water had been mostly drained from the remaining two bags over a period of about 5-10 minutes. Penetration was zero and no debris was ejected. A following vehicle could not have passed through.

PAS 68:2007 Performance classification—vehicle impact test V Temporary barrier 1500 48/0/0

Specifications: per ‘A’ frame unit

  • External Height – 1490mm/59”
  • External Width – 1590mm/63”
  • External Depth – 1532mm/60”
  • Wall Thickness – 335mm/13”
  • Water Volume – 1939 litres/512 US Gal
  • Weight Empty – 25 Kgs/55 lbs
  • Weight Full – 1965 Kgs/4329 lbs