| 22 | | * polystyrene particles, sorted in density, diam. 300 and 700 µm. [wiki:BidonPolystyreneTroisCents 442913010194], [wiki:BidonPolystyreneTroisCents 442913011818], [wiki:BidonPolystyreneTroisCents 442913010187], [wiki:BidonPolystyreneTroisCents 442913010163], [wiki:BidonPolystyreneTroisCents 442913011771], [wiki:BidonPolystyreneTroisCents 442913010170], [wiki:BidonPolystyreneTroisCents 442913010200] et [wiki:BidonPolystyreneTroisCents 442913010149] |
| | 22 | * polystyrene particles, sorted in density, diam. 200, 300 and 700 µm. [wiki:BidonPolystyreneTroisCents 442913010194], [wiki:BidonPolystyreneTroisCents 442913011818], [wiki:BidonPolystyreneTroisCents 442913010187], [wiki:BidonPolystyreneTroisCents 442913010163], [wiki:BidonPolystyreneTroisCents 442913011771], [wiki:BidonPolystyreneTroisCents 442913010170], [wiki:BidonPolystyreneTroisCents 442913010200] et [wiki:BidonPolystyreneTroisCents 442913010149] |
| | 23 | * orgasol 60 and 30 µm diameter (density 1.02) |
| | 24 | * pliolite, multi-size 100-500 µm. |