IS 4151 : 2015 Protective Helmet for Two Wheeler Riders - Specification
Reaffirmed 2020
1 SCOPE
1.1 This standard covers the requirements regarding the material, construction, workmanship, finish, mass and performance for protective helmet (With or without lover face cover) for everyday use by two wheeler riders.
1.2 This helmets covered by this standard are not intended for high-speed competitive events.