JIS T 8134 

Test Item 测试名称：Protective Helmets for Bicycle User 自行车使用者保护头盔

Test Requirements 测试要求：

Impact Energy Attenuation 撞击能量吸收
Dynamic Strength of Retention System 固定系统的动态强度
 
Sample Size 样品数量: 9 pcs of completed products per headform size per model with instruction (if applicable) is recommended. 每款每种头形尺寸的头盔各9个,包括说明书(如适用).
Lead Time / TAT (Turn Around Time) 测试周期: regular service 9-12 working days 常规服务9-12个工作天