question/clarification on data/types for aif compute rack

Some questions on the specification, which define

aif:spec:requiredAirFlowRate | float3_array | m³/s | Required air flow rate curve [Inlet Temp (°C), Flow]
aif:spec:requiredLiquidFlowRate | float3_array | LPM | Required liquid flow rate curve [Inlet Temp (°C), Flow (L/s), Flow (LPM)]

requiredAirFlowRate is specified as float3_array - this appears to contain multiple sub-typed values. The description only lists two values, Inlet Temp (C) and Flow.

requiredLiquidFlowRate desribes three values, temp(C), FLow (L/s) and Flow (LPM).

Three questions

1. On the former (air), I assume the second value Flow has units m^3/s? It isnt detailed in the specification (see above)
2. What is the third value in this float3 {inlettemp, flow, ???}, name and units?
3. On the latter (liquid), what's the difference between the 2nd and 3rd values - Flow(L/s) and Flow (LPM*)

*LPM as an acronym can mean many things - Lines Per Minute (printers) for example :) L/min appears to be the accepted way of writing Litres/min (fluid volume flow). Is it the case that value 2 (Flow) is L/s (litres per second) and the third is Flow in L/min?

No file, test, or code entry point is identified. Start by locating the AIF compute-rack specification and verifying the float3_array definitions and units with the specification owners; done means the three questions have authoritative answers and the specification is clarified where needed.