Table 3.
Carpet accelerated aging on the concentration of perfluorinated compounds.
| Time (h) | 8:2 FTOH | 10:2 FTOH | PFOA | |||
|---|---|---|---|---|---|---|
| Accelerated aging* | Gas-phased* | Accelerated aging* | Gas-phased* | Accelerated aging* | Gas-phased* | |
| 12 | 16,588 (6.53) | 1757 (4.31) | 9800 (0.88) | 3039 (7.40) | 32,627 (4.44) | 6982 (1.58) |
| 24 | 9488 (3.08) | 19,035 (5.13) | 5545 (6.27) | 23,741 (4.20) | 19,642 (2.00) | 54,901 (3.26) |
| 72 | 4101 (4.62) | 22,852 (3.34) | 2774 (3.82) | 27,874 (1.87) | 14,791 (2.28) | 64,786 (1.21) |
RSD: relative standard deviation.
*Concentration (ng/g) (RSD%).