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The vertical burning data of RPUF and its composites.
| Sample No. | t1/t2 (s) | Ignite the Cotton | Rating |
|---|---|---|---|
| RPUF-1 | ― | No | NR |
| RPUF-2 | 19.7/0.0 | No | V-1 |
| RPUF-3 | 6.9/0.0 | No | V-0 |
| RPUF-4 | 15.7/0.0 | No | V-1 |
| RPUF-5 | 2.4/0.0 | No | V-0 |
| RPUF-6 | 17.8/0.0 | No | V-1 |
Note: t1 means first burning time; t2 represents second burning time; NR denotes no rating.
