Flame-resistant rainwear for industrial fire hazards
ASTM F2733-21 specifies minimum flame, thermal, physical and waterproof performance criteria for rainwear used around hydrocarbon and petrochemical fire hazards.
Tests rainwear material and seams separately under water pressure.
Reusable rainwear: initially and after 5 cleaning-and-drying cycles.
| Tested construction | Water pressure | Test method / duration |
|---|---|---|
| Rainwear material | 207 kPa / 30 psi | ASTM D3393 |
| Rainwear seams | 20.7 kPa / 3 psi | AATCC 127; 2 minutes |
Tests at least 3 standardized rainwear coveralls after 1 cleaning-and-drying cycle, over the specified cotton undergarments.
Predicted total, second-degree and third-degree burn (%):
| Parameter | Specified exposure |
|---|---|
| Heat flux | 84 ± 4 kW/m² |
| Exposure duration | 3 ± 0.1 seconds |
Tests each rainwear layer initially and after 5 cleaning-and-drying cycles. Non-cleanable disposable rainwear is tested as received.
Char length, afterflame, melting and dripping.
Measures trapezoidal tear resistance; knitted or stretch-woven substrates may use the specified bursting test.
Tear force: N; bursting pressure: kPa. Optional inverted-cup testing measures vapor transfer per unit area and time.
Tell us about the workplace hazard, garment requirements and target certification. Our technical team will help you define the right solution.
