| Allowed Value | Details | 
|---|---|
| CARBON | |
| CELLULOSE ACETATE PLUS CARBON | |
| FORMVAR PLUS CARBON | |
| HOLEY CARBON | |
| OTHER | |
| PARLODION PLUS CARBON | |
| QUANTAFOIL | 
| Allowed Value | Details | 
|---|---|
| CARBON | |
| CELLULOSE ACETATE PLUS CARBON | |
| FORMVAR PLUS CARBON | |
| HOLEY CARBON | |
| OTHER | |
| PARLODION PLUS CARBON | |
| QUANTAFOIL |