(1) electrical insulation performance of safety helmet: according to the specified test method, the leakage current shall not exceed 1.2mA
(2) the flame retardancy of safety helmet: tested according to the specified method, the continuous burning time shall not exceed 5S, and the cap shell shall not be burned through
(3) the lateral rigidity of the safety helmet: according to the specified test method, the maximum deformation is not more than 40mm, the residual deformation is not more than 15mm, and the cap shell shall be free of debris
(4) antistatic performance of safety helmet: according to the specified method, the surface resistance value is not more than 1 Ω X 109.
(5) low temperature resistance of safety helmet: impact test was conducted after pretreatment at low temperature (- 20 ℃), and the force transferred to the head mold was no more than 4900n; There shall be no debris falling off the cap shell; Then another sample was pretreated at (- 20 ℃) for puncture test. The steel cone should not contact the surface of the head mold, and the cap shell should not have debris falling off
China labor insurance net