Equipment for Dynamic Test of Retention System and Retention Test
The retention system of helmets is subjected to a specified dynamic loading to determine its dynamic displacement, residual displacement, and damage to the retention system in order to assess the suitability of the helmet. It is further subjected to a dynamic loading at a tangential line on the rear part of the shell. After the test the inclination of helmet on the head-form is checked for suitability of its retention system. The GLOBE Apparatus for Dynamic Test of Retention System and Retention Test of helmets consists of a rigid fabricated steel frame fitted with arrangements to carry out either of the two tests.
IS 4151 - 1993
: Specification for Protective Helmets for Motorcycle Riders
Technical Details
Mass of the loading cum guiding system
For dynamic test
: 15 ? 0.5 kg (with head-form)
For retention test
: 3 ? 0.1 kg
Mass of falling weight
: 10 ? 0.1 kg
Height of fall
