Many projects are now specifying HVM equipment, not only for the counter terrorist benefits but also for the heavy duty properties of the equipment. However, there are many different test specifications, includung IWA 14 and PAS 68. There are also a range of criteria within each specificiation, depending on the kinetic energy values.
It is very important to know which level of HVM is required as there could potentially be a cost difference of thousands of pounds between each category. Equipment that has been successfully impact tested in accordance with IWA 14 and BSi PAS 68 is given a 5-7 part classification code to help identify the products performance, depending on test date.