Complies with GA 633-2006 "Protective Clothing for Firefighters in Emergency Rescue" standard parameters.
1. Impact absorption performance N: Maximum force on headform ≤3780N;
2. Penetration resistance: Steel cone shall not establish electrical contact with the headform;
3. Flame retardancy: After removing the fire source from the helmet shell, the flame on the shell shall self-extinguish within 5s;
4. Thermal stability: Under conditions of (180±5)℃ for 5min, the edge of the rescue helmet shall show no obvious deformation; hard accessories must remain functional, and reflective material surfaces shall show no charring or peeling;
5. Lateral rigidity: Maximum deformation of the rescue helmet shell shall not exceed 40mm, and residual deformation after unloading shall not exceed 15mm;
6. Chin strap tensile strength: The chin strap shall not break or slip, and its elongation shall not exceed 20mm;
7. Mass g: ≤800;
8. Appearance quality: The appearance of the rescue helmet shall meet the following requirements: a) The surface of the helmet shell shall be bright, smooth, free of stains, bubbles, defects, and other cosmetic flaws; b) The visor surface shall have no obvious scratches or abrasion marks, with smooth edges and no sharp corners; c) The neck curtain stitching shall be flat, without detachment, skipped stitches, damage, stains, or other defects; d) All components of the helmet shall be installed securely, firmly, and correctly, without loosening or slipping. The visor extension/rotation shall be flexible, and the neck curtain removal shall be convenient.
