| | CLASS NOTES |
| 700 | DF | ZEOLITE {7} |
| 1 | DF | TREATING MIXTURE TO OBTAIN METAL CONTAINING COMPOUND {15} |
| 210 | DF | MODIFYING OR REMOVING COMPONENT OF NORMALLY GASEOUS MIXTURE {11} |
| 249 | DF | RADIOACTIVE (AT. NO. 84+ OR RADIOACTIVE ISOTOPE OF ANOTHER ELEMENT) {3} |
| 262 | DF | INERT OR NOBLE GAS OR COMPOUND THEREOF |
| 263 | DF | RARE EARTH COMPOUND (AT. NO. 21, 39, OR 57-71) |
| 264 | DF | CHANGING COLOR CHARACTERISTIC OF IMPURITY |
| 265 | DF | WITH ADDITIVE {7} |
| 276 | DF | BORON OR COMPOUND THEREOF {5} |
| 299 | DF | PHOSPHORUS OR COMPOUND THEREOF {5} |
| 324 | DF | SILICON OR COMPOUND THEREOF {4} |
| 351 | DF | NITROGEN OR COMPOUND THEREOF (EXCEPT AMMONIUM SALT OF NON-NITROGEN ACID) {5} |
| 414 | DF | CARBON OR COMPOUND THEREOF {3} |
| 462 | DF | HALOGEN OR COMPOUND THEREOF {10} |
| 508 | DF | SELENIUM OR TELLURIUM OR COMPOUND THEREOF {2} |
| 511 | DF | SULFUR OR COMPOUND THEREOF {4} |
| 579 | DF | OXYGEN OR COMPOUND THEREOF {4} |
| 644 | DF | HYDROGEN OR COMPOUND THEREOF {3} |
| 658.5 | DF | EXTRACTING, LEACHING, OR DISSOLVING |
| 659 | DF | MISCELLANEOUS PROCESS |
| | ****************************** |
| | DIGESTS |
| | ****************************** |
| DIG 1 | DF | Waste acid containing iron {1} |
| DIG 3 | DF | Papermaking liquor |
| DIG 4 | DF | Manganese marine modules |
| DIG 5 | DF | Automatic (including computer) control |
| DIG 6 | DF | Temperature control |
| DIG 7 | DF | Isotope separation |
| DIG 8 | DF | Corrosion or deposition inhibiting |
| DIG 9 | DF | Reaction techniques {8} |
| DIG 18 | DF | Treating trash or garbage |
| DIG 19 | DF | Geothermal steam purification |
| DIG 21 | DF | Faujasite; e.g., X, Y, CZS-3, ECR-4, Z-14HS, VHP-r |
| DIG 22 | DF | MFI; e.g., ZSM-5. Silicalite, LZ-241 |
| DIG 23 | DF | Ferrierite; e.g., Sr-D ZSM-33 |
| DIG 24 | DF | LTA; e.g., A, Alpha, ZK-4, ZK-21, ZK-22 |
| DIG 25 | DF | Mordenite; e.g., Na-D, Pttilolite, Zeolon |
| DIG 26 | DF | Mazzite; e.g., ZSM-4, Omega |
| DIG 27 | DF | Beta; e.g., NU-2 |
| DIG 28 | DF | LTL; e.g., Ba-g, L, AG-1, AG-2, AG-4, Ba-6 |
| DIG 29 | DF | MEL; e.g., ZSM-11 |
| DIG 30 | DF | ALPO and SAPO |
| DIG 31 | DF | RHO; e.g., ECR-10, LZ-214 |
| DIG 32 | DF | Sodalite; e.g., HS, Ultramarine |
| DIG 33 | DF | MTW; e.g., ZSM-12, NU-13, Czh-5, TPZ-3 |
| DIG 34 | DF | Pentasils other than MFI and MEL; e.g., AZ-1, TZ-01, TZ-02, TRS, ZBM-10 |
| DIG 35 | DF | TON; e.g., Theta-1, ISI-1, KZ-2, ZSM-22, NU-10 |
| DIG 36 | DF | MTT; e.g., ZSM-23, ISI-1, KZ-1, EU-1, EU-4, EU-13 |
| DIG 37 | DF | LEV; e.g., Levynik, ZMT-45, ZK-20, NU-3, LZ-132, LZ-133 |
| DIG 38 | DF | Offretite; e.g., TMA Offreite |
| DIG 39 | DF | Fullerene (e.g., C60, C70, etc.) derivative and related process |
| DIG 40 | DF | Fullerene composition |
