| 73 / | HD | MEASURING AND TESTING |
| 863 | DF | SAMPLER, SAMPLE HANDLING, ETC. {11} |
| 863.41 | ![]() | .~ Flow divider, deflector, or interceptor {4} |
| 863.42 | DF | .~.~> Attached to mouth of dumpable receptacle |
| 863.43 | DF | .~.~> Having precapture flow guide or homogenizer {2} |
| 863.51 | DF | .~.~> Having an upstream-facing-opening-type capture element {6} |
| 863.61 | DF | .~.~> Branched conduit |