205 / | HD | ELECTROLYSIS: PROCESSES, COMPOSITIONS USED THEREIN, AND METHODS OF PREPARING THE COMPOSITIONS |
775 | DF | ELECTROLYTIC ANALYSIS OR TESTING (PROCESS AND ELECTROLYTE COMPOSITION) {19} |
780.5 | DF | .~ For nitrogen or nitrogen containing compound {1} |
781 | .~.~ Including nitrogen oxide (e.g., gaseous nitrogen dioxide, dissolved sodium nitrate, etc.) |