| 426 / | HD | FOOD OR EDIBLE MATERIAL: PROCESSES, COMPOSITIONS, AND PRODUCTS |
| 531 | DF | PRODUCTS PER SE, OR PROCESSES OF PREPARING OR TREATING COMPOSITIONS INVOLVING CHEMICAL REACTION BY ADDITION, COMBINING DIVERSE FOOD MATERIAL, OR PERMANENT ADDITIVE {29} |
| 561 | DF | .~ Gas or gas generating agent per se {1} |
| 562 | DF | .~.~ Baking powder {1} |
| 563 | | .~.~.~ Phosphorus containing |