| Test procedure | Sample collection | PCM analysis | TEM analysis | Asbestos-Adjusted PCM | |
|
| Time (min) | Volume (L) | Øa | Fiber ratio | Ø (f/cc) |
| 1. Arc grind relined brakes | |||||
|
| 15 | 30.3 | <0.064 | --- | <0.064 |
|
| 30 | 60.7 | 0.055 | 0 | <0.0074 |
|
| 30 | 60.7 | 0.047 | 0.5 | 0.024 |
| 2. Custom grind brakes to 12.02 inch diameter | |||||
|
| 15 | 30.3 | <0.064 | --- | <0.064 |
|
| 30 | 60.7 | 0.055 | 1 | 0.055 |
|
| 30 | 60.7 | 0.044 | 0.67 | 0.029 |