1. Overall Performance
1.1 Compliant with XF633-2006 standard requirements
2. Structure
2.1 Composed of sole, upper with comfort layer (inner middle layer is flame-retardant sponge), insole with puncture-proof layer, insole pad, and toe cap; toe cap material is carbon fiber.
2.2 Inner side features quick-release waterproof zipper; zipper pull tab must be leather; main upper material is black waterproof flame-retardant cowhide and waterproof flame-retardant canvas; inner side has two one-way breathable waterproof eyelets.
2.3 Height from center of heel inside boot to lowest point of boot opening: 170±10mm. Main color is black; silver reflective strips on both sides of upper; lace material is aramid.
3. Technical Performance
▲3.1 Physical and mechanical properties: Upper thickness 1.6mm; Transverse tensile strength 20.97N/mm2; Longitudinal tensile strength 31.63N/mm2. Transverse tear strength 183.1N/mm; Longitudinal tear strength 188.8N/mm.
3.2 Outsole: Breaking strength 14.897MPa; Elongation at break 603.6%; Abrasion loss 0.25cm3/1.61km.
3.3 Upper abrasion resistance: ≥20000 cycles.
3.4 Upper puncture resistance: 181.3N; Upper thermal radiation resistance: Inner surface temperature rise 5.3℃.
3.5 Toe cap performance: Gap height between toe caps after static pressure test 23mm; Gap height between toe caps after impact test 23.3mm.
3.6 Sole puncture resistance: 2188N.
3.7 Thermal insulation performance: Inner surface temperature rise 11.6℃.
3.8 Anti-slip performance: Initial slip angle >15°.
3.9 Electrical insulation performance: Test voltage 5000V; Leakage current 0.1mA.
3.10 Flame retardancy: Self-extinguishing time off fire 0S; Damage length 0mm.
3.11 Weight 1.284kg. (Size 39)
