Helmet Anti Drop off testing machine/Helmet stability testing/Helmet retention detaching testing machine for IS 4151 ECE R22.05

Helmet Anti Drop off testing machine / Helmet stability testing / Helmet retention detaching testing machine for IS 4151 ECE R22.05 

Purpose

It's used for helmet anti drop off testing , stability testing and retention detaching testing etc 

Testing standard 

It's suit for IS 4151 and ECE R22.05 testing standard 

The Main Technical specifications 

Testing procedure

1.The helmet previously conditioned at ambient temperatuer and hygrometry ,shall be placed on and secured to the appropriate headform 

2. A device to guide and release a falling total mass being 3kg±0.1kg is hooked on to the rear part of the shell in the median vertical plane of the helmet 

3.The falling mass of 10kg±0.01kg is then released and dropped in a guided free fall from a height of 0.5m±0.01m, the guiding device shall be such as to ensure that the impact speed is not less than 95 percent of the theoretical speed 

Determine Standard 

After the test the angle between the reference line situated on the shell of the helmet and the reference plane of the headform shall not exceed 30°