Table 3. Results of gravimetric determination of test atmosphere concentration and particle size distribution.
| Mixed chlorinated DPP isomers | |||
| Target concentration (mg/m3) | 30 | ||
| Measured concentration (mg/m3±SD) | 31.49 ± 1.27 | ||
| MMAD (μm) | 0.7/0.6 | ||
| GSD | 2.6/2.8 | ||
| OPC | |||
| Count median diameter (μm) | 0.376 | ||
| Count concentration (N/cm3) | 94 423 | ||
| SMPS | |||
| Count median diameter (μm) | 0.292 | ||
| Count concentration (N/cm3) | 373 840 | ||
| Fine Pigment Red 254 | |||
| Target concentration (mg/m3) | 30 | ||
| Measured concentration (mg/m3±SD) | 29.86 ± 2.77 | ||
| MMAD (μm) | 1.1/0.6 | ||
| GSD | 2.5/3.2 | ||
| OPC | |||
| Count median diameter (μm) | 0.362 | ||
| SMPS | |||
| Count concentration (N/cm3) | 63 792 | ||
| Count median diameter (μm) | 0.255 | ||
| Coarse Pigment Red 254 | |||
| Target concentration (mg/m3) | 30 | ||
| Measured concentration (mg/m3±SD) | 31.34 ± 4.49 | ||
| MMAD (μm) | 0.7/0.7 | ||
| GSD | 2.9/2.5 | ||
| OPC | |||
| Count median diameter (μm) | 0.370 | ||
| Count concentration (N/cm3) | 191 421 | ||
| SMPS | |||
| Count median diameter (μm) | 0.255 | ||
| Count concentration (N/cm3) | 506 049 | ||
| Coarse meta-chloro DPP | |||
| Target concentration (mg/m3) | 3 | 10 | 30 |
| Measured concentration (mg/m3±SD) | 3.45±.23 | 10.54 ± 1.54 | 31.04 ± 3.11 |
| MMAD (μm) | 0.7/0.9 | 0.6/0.6 | 1.1/0.8 |
| GSD | 2.8/2.4 | 2.9/3.1 | 2.6/2.5 |
| OPC | |||
| Count median diameter (μm) | 0.498 | 0.605 | 0.589 |
| Count concentration (N/cm3) | 18 987 | 63 792 | |
| SMPS | |||
| Count median diameter (μm) | 0.366 | 0.409 | 0.359 |
| Count concentration (N/cm3) | 96 924 | 33 168 | 115 116 |
| Fine meta-chloro DPP | |||
| Target concentration (mg/m3) | 3 | 10 | 30 |
| Measured concentration (mg/m3±SD) | 3.55 ± 0.30 | 13.97 ± 1.58 | 32.00 ± 5.19 |
| MMAD (μm) | 1.1/1.1 | 0.7/0.7 | 0.9/0.9 |
| GSD | 2.8/2.6 | 3.1/2.8 | 2.7/2.7 |
| OPC | |||
| Count median diameter (μm) | 0.380 | 0.366 | 0.389 |
| Count concentration (N/cm3) | 6322 | 25 819 | 96 507 |
| SMPS | |||
| Count median diameter (μm) | 0.263 | 0.242 | 0.233 |
| Count concentration (N/cm3) | 35 004 | 178 400 | 506 463 |
| Fine Pigment Red 101 | |||
| Target concentration (mg/m3) | 10 | 30 | |
| Measured concentration (mg/m3±SD) | 11.3 ± 1.7 | 29.5 ± 6.5 | |
| MMAD (μm) | 3.0/2.3 | 2.1/2.8 | |
| GSD | 3.1/2.5 | 2.8/2.1 | |
| OPC | |||
| Count median diameter (μm) | 0.347 | 0.348 | |
| SMPS | |||
| Count concentration (N/cm3) | 9712 | 28 502 | |
| Count median diameter (μm) | 0.233 | 0.233 | |
| 77 062 | 156 058 | ||
| Coarse Pigment Red 101 | 30 | ||
| Target concentration (mg/m3) | 26.8 ± 3.9 | ||
| Measured concentration (mg/m3±SD) | 0.9/0.9 | ||
| MMAD (μm) | 3.6/4.9 | ||
| GSD | 0.292 | ||
| OPC | |||
| Count median diameter (μm) | 90 462 | ||
| Count concentration (N/cm3) | 0.198 | ||
| SMPS | |||
| Count median diameter (μm) | 833 882 | ||
| Count concentration (N/cm3) | 30 | ||
OPC: optical particle counter; SMPS: scanning mobility particle sizer.