1.1 ,These test methods cover the degree of dispersion of carbon black in rubber. Four test methods are described as follows:
| , | Sections |
| , ,Test Method A—,Visual Inspection | ,3 –, 11 |
| , ,Test Method B—,Agglomerate Count | 12 –, 22 |
| , ,Test Method C—,Microroughness Measurement | , |
| , , , ,with Profilometer | 23 –, 33 |
| , ,Test Method D—,Microroughness Measurement with IFM | 34 –, 42 |