A Flow List is in the form of a pandas data frame with the following fields.
| Field | Type | Required | Note |
|---|---|---|---|
| Flowable | string | Y | The flow name |
| CAS No | string | N | CAS number |
| Formula | string | N | Chemical formula |
| Synonyms | string | N | Flow synonyms |
| Unit | string | Y | The reference unit. uses olca-ipc.py units |
| Class | string | Y | The flow class, e.g. Energy or Chemical |
| External Reference | string | N | E.g. a web link |
| Preferred | int | N | 1 for preferred*, 0 for non-preferred |
| Context | string | Y | A path-like set of context compartments in the form of directionality/environmental media/environmental compartment... e.g. emission/air/tropophere |
| Flow UUID | string | Y | Unique hexadecimal ID for the flow |
| AltUnit | string | N | Alternate unit for the flow |
| AltUnitConversionFactor | float | N | Conversion factor in the form of alternate units/reference unit |
* See the EPA Report for discussion of preferred flows.