How to abbreviate cubic foot

CF - cubic foot
C.F. - cubic foot
C/F - cubic foot
cu ft - cubic foot
cubic foot in definitions
CFDAY - cubic foot per day

SCF - Standard cubic foot
slug/cu ft - slug per cubic foot
slug/ft3 - slug per cubic foot
std cu ft - standard cubic foot
gr/cu ft - grain per cubic foot
gr/ft3 - grain per cubic foot

ft3/min - cubic foot per minute

pcf - pounds per cubic foot
CFM - Cubic Foot per Minute
CUSEC - Cubic Foot per Second
lb/ft3 - pounds per cubic foot
ppcf - Pounds Per Cubic Foot
scf/ton - standard cubic foot per ton

MPPCF - Million Parts per Cubic Foot
gr/SCF - grain per standard cubic foot
BPPCF - Billion Particles per Cubic Fo…
mppcf - million particles per cubic fo…
TPPCF - Thousand Particles per Cubic F…
gr/dscf - grains per dry standard cubi…
gr/SCFdry - grain per standard cubic f…
gr/SCFwet - grain per standard cubic f…
Btu/cu ft - British thermal units per…
Ctu/SCF - Centigrade thermal unit per…