1 Flame resistance (outer layer performance): Damage length shall not exceed 100mm, afterflame time shall not exceed 2s, and there shall be no melting or dripping phenomena. Warp: ≥43mm Weft: ≥43mm Melting/Dripping: None 2 Breaking strength (outer layer performance) : Warp: ≥2100N Weft: ≥1200N
Tear strength : ≥100N, 3 Hydrostatic pressure resistance (outer layer performance) : ≥18.8kPa 4 Overall airtightness : ≤200 Pa 5 Adhesion strength : ≥1.60 kN/m 6 Exhaust valve airtightness : ≥27 s
Exhaust valve airflow resistance: ≥100pa
7 Tensile strength : Warp: ≥21kN/m Weft: ≥19kN/m 8 Heat aging resistance (125℃ 24h) -- Grade 1: After exposure to 125℃ for 24h, samples shall not stick or become brittle. 9 Flame resistance (afterflame time) ≤0s 10 Flame resistance (damage length): ≥43cm 11 Seam strength : ≥680N 12 Cold resistance (-25℃ 5min) Grade 1: No cracks. Samples exposed to -25℃ for 5min shall show no cracks. 13 Puncture resistance (gloves): ≥26N 14 Dexterity (gloves) - The dexterity of Grade 1 chemical protective gloves shall meet the requirements of Level 1 specified in Table 9 of GA7-2004. Performance Level 1: Minimum diameter of steel rod meeting test conditions is 11.0mm. Under test conditions, the minimum diameter of the test rod picked up is 11.0mm, performance level is: Level 5 15 Boot sole puncture resistance: Left: ≥1519N Right: ≥1526N 16 Cut resistance -- After cut resistance testing, the upper of Grade 1 chemical protective boots shall not be cut through. The boot upper was not cut through after cut resistance testing. 17 Electrical insulation performance mA The breakdown voltage of Grade 1 chemical protective boots shall not be less than 5000V, and leakage current shall be less than 3mA. Left: 0.10, no breakdown Right: 0.1, no breakdown 18 Slip resistance - During slip resistance testing of Grade 1 chemical protective boots, the initial slip angle shall not be less than 15°. Initial slip angle:
Left: ≥23.5° Right: ≥23° 19 Impact resistance - After static load test of 10.78kN and impact test with hammer mass of 23kg and drop height of 300 mm on the toe cap of Grade 1 chemical protective boots, the clearance height shall not be less than 15 mm. Compression test: Left: ≥22.0mm Impact test: Right: ≥22mm 20 Appearance quality: Fabric surface shall be flat, free from holes, bubbles, delamination, exposed fabric, or permanent creases. Chemical protective boots shall be free from tooth loss, edge popping, hollowing, glue opening, blooming, over-curing, or under-curing. External seam tapes of chemical protective suits shall be neat, with no missing parts. Fabric surface is flat, no holes, bubbles, delamination, exposed fabric, or permanent creases. Chemical protective boots have no tooth loss, edge popping, hollowing, glue opening, blooming, over-curing, or under-curing. External seam tapes of chemical protective suits are neat, no missing parts.
