GB 811-2010 Translated English of Chinese Standard. GB811-2010: Helmets for motorcyclists [Buy--download True-PDF in 3-second: https://play.google.com/books > Sign in > This BOOK > "3-dots" > Export > Save as "*.pdf"]This Standard specifies the basic structure, categories and specifications, technical requirements, test methods, inspection rules and marks of helmets for motorcyclists. |
Common terms and phrases
A-A line acceleration peak value Accelerometer according to requirements batch of products Central vertical axis chin strap Class-A Class-A helmet Class-B Class-B helmet Clause collision energy absorption Collision test bench Comfort padding conditions for helmet Conduct the test different specifications dihedral angle drop hammer drop height energy absorption performance exit-factory inspection Figure 17 Figure 5 Protect Figure 6 Visual following technical requirements frequency response greater half-face helmet collision energy helmet sample Helmets for motorcyclists Hemispherical anvil impact point Impact speed initial load less lower-visual field meet the following method specified outer surface parallel plates penetration resistance performance Penetration test plane of headform protect range Protect section Protective padding Put the helmet refers to horizontal release device retention system section and testing shell shown in Figure shown in Table Standard symmetry plane Table 6 Test temperature test according Test conditions Test device Test procedures Put testing section type inspection Visual field