| 516 / | HD | COLLOID SYSTEMS AND WETTING AGENTS; SUBCOMBINATIONS THEREOF; PROCESSES OF |
| DIG 1 | | WETTING, EMULSIFYING, DISPERSING, OR STABILIZING AGENTS (252/351) {4} |
| DIG 2 | DD | .~> Organic and inorganic agents containing (except water) (252/352) |
| DIG 3 | DD | .~> Organic sulfoxy compound containing (252/353) {2} |
| DIG 6 | DD | .~> Protein or carboxylic compound containing (252/356) |
| DIG 7 | DD | .~> Organic amine, amide, or N-base containing (252/357) |