Helmet Model:
Specification: Standard size
Material: PC engineering plastic
Police Prevention Factor: Level 2
Execution standard: GB 2811-2007
Performance of the wear device: It fits securely and is comfortable to wear; easy to remove.
20KG load applied, maintained for 1 minute; straps did not tear or break; connectors and buckles remained secure.
Absorption collision performance: Peak acceleration ≤ 300G, the duration exceeding 140G is < 3ms, and no cracks occur in the shell.
Penetration resistance: 2 KG weight of steel cone, 1 M height, does not penetrate helmets.
Corrosion resistance: According to the aging test specified in GB2811-2007, after 5 cycles, there is no significant erosion, deformation, or discoloration on the helmet surface.
Model B helmet:
Specification: Standard size
Material: Steel
Police Prevention Factor: Level 4
Execution standard: GA1 47-2001
Performance of the wear device: It fits securely and is comfortable to wear; easy to remove.
30 KG load applied, maintained for 3 minutes; straps did not tear or break; connectors and buckles remained secure.
Absorption collision performance: Peak acceleration ≤ 500G, the duration exceeding 140G is < 6ms, and no cracks occur in the shell.
Penetration resistance: The steel cone weighs 4 KG, is 2 M high, and does not penetrate helmets.
Corrosion resistance: According to the GA1 47-2001 aging test specifications, with a duration of 8 cycles, there is no significant erosion, deformation, or discoloration on the helmet surface.
Model C helmet:
Specification: Standard size
Material: PC alloy engineering plastic
Police Prevention Factor: Level 3
Execution standard: GA2 9 6-2 0 1
Performance of the wear device: It fits securely and is comfortable to wear, and comes off easily.
23 KG load applied, maintained for 2 minutes; straps did not tear or break; connectors and buckles remained secure.
Absorption collision performance: Peak acceleration ≤ 400G, the duration beyond 150G is < 4ms, and no cracks occur in the shell.
Penetration resistance: The steel cone weighs 3 KG, with a height of 1 M; it does not penetrate helmets.
Corrosion resistance: According to the aging test specified in GB/T16422.2, with a duration of 7 cycles, there is no obvious erosion, deformation, or discoloration on the helmet surface.
