British Standards Specification for vehicle security barriers
PAS 68:2007 has been prepared
to address the needs of organizations who wish to have assurance that
vehicle security barriers will provide the level of impact resistance that
they seek.
Many systems are available that
are either promoted or considered suitable for use as vehicle security barriers.
As their characteristics differ in both
function and form, a comparative means of assessing their performance is required.
PAS 68:2007 specifies a classification
system for the performance of vehicle security barriers and
their supporting foundations when subjected to a single horizontal impact.
In the course of this document
three alternative assessment methods of determining
the performance classification of vehicle security barriers are given:
The vehicle impact method The
pendulum method (only suitable for testing bollards at lower energy levels)
the design method.
This PAS identifies impact test tolerances and vehicle performance criteria
that need to be met in order to conform to it.
Design guidance is provided in PAS 69:2006.