|
Process |
N |
fiber concentrations (f/ml)
-GM(GSD)
-Range |
| Total a |
Asbestos b |
Rock wool c |
|
Feeding of raw material |
12 |
0.96(1.29)
0.71-1.50 |
0.38(1.29)
0.28-0.60 |
0.58(1.29)
0.43-0.90 |
|
Milling & mixing |
8 |
0.54(1.61)
0.30-1.10 |
0.22(1.61)
0.12-0.44 |
0.32(1.61)
0.18-0.66 |
|
Baking processes |
10 |
0.36(1.29)
0.25-0.53 |
0.14(1.28)
0.10-0.21 |
0.21(1.30)
0.15-0.32 |
|
Drilling & beveling |
10 |
0.55(1.63)
0.27-1.02 |
0.22(1.63)
0.11-0.41 |
0.33(1.63)
0.16-0.61 |
|
Cutting |
8 |
0.56(1.21)
0.43-0.76 |
0.23(1.21)
0.17-0.30 |
0.33(1.21)
0.26-0.46 |
|
Grinding & finishing |
8 |
0.38(1.30)
0.23-0.48 |
0.16(1.30)
0.09-0.19 |
0.22(1.30)
0.14-0.29 |
|
Total |
56 |
0.54(1.61)
0.23-1.50 |
0.22(1.61)
0.09-0.60 |
0.32(1.62)
0.14-0.90 |
|
