| Name | Description |
|---|---|
| Substance | Substance |
| ElectronTransfer | |
| ExternalSubstance | Constant source of molar concentration |
| ExternalGas | Gas substance with defined partial pressure |
| TerminalInflow | Molar pump of substance to system |
| TerminalOutflow | Molar pump of substance from system |
| Clearance | ClearanceFlow of whole solution |
| Degradation | Flow of whole solution |
| BoundaryRear | Generic Boundary model (may act as source or sink) |
| BoundaryFore | Generic Boundary model (may act as source or sink) |
| Tests | Tests for the boundaries package |
| Internal | Partials and Internal functions |