Fiber: Near flame phenomenon in flame, odor, ash and ember after leaving flame;
Cotton: Near flame phenomenon burning, continuous burning with afterglow, burning paper smell, very little ash, soft, black, ash;
Wool: Fusion flame fused and ignited, self-extinguishing, burning smell, fragile, crisp, fluffy, black;
Silk: Fused flame silk sound, difficult to continue burning self-extinguishing, wool flavor, fragile, crisp, fluffy, black;
Polyester: melting and dropping near flame, foaming, continuous burning, weak fragrance, hard round, black, light brown;
Acrylic fibre: Fused near flame, fused and ignited, fast-burning spatter, weak fragrance, hard round, irregular or beaded.