Helmet Retention Testing equipment / Helmet Detaching Testing machine with ECE R22.05 IS 4151 testing standard 

Standard 

It's conform ECE R22.05, IS4151 etc testing standard 

Purpose

It's used for helmet stability testing 

The Main Technical specifications 

The Testing machine's main components 

Testing Procedure

1.The helmet previously conditioned at ambient temperature and hygrometry,

   shall be placed on and secured to the appropriate headform 

2.A device to guide and release a falling mass (the 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