| 73 / | HD | MEASURING AND TESTING |
| 19.01 | ![]() | GAS CONTENT OF A LIQUID OR A SOLID {9} |
| 19.02 | DF | .~> By gas chromatography |
| 19.03 | DF | .~> By vibration |
| 19.04 | DF | .~> By rate of flow of the gas |
| 19.05 | DF | .~> By pressure of the gas {1} |
| 19.07 | DF | .~> Of metal |
| 19.08 | DF | .~> Of concrete, mortar, or plastic while in a fluent state |
| 19.09 | DF | .~> Of mud |
| 19.1 | DF | .~> Of a liquid {1} |
| 19.12 | DF | .~> Particular separator |