# Own units, defined specifically for process engineering,
#   and missing in standard pint

# gauge pressure units

bar_gauge = bar; offset: 1.01325 = barg
standard_atmosphere_gauge = atm; offset: 1 = atmg
kilo_pascal_gauge = kPa; offset: 101.325 = kPag
mega_pascal_gauge = MPa; offset: 0.101325 = MPag

# alias for dimensionless (dimensionless itself isn't defined here however)
dimless = m/m

parts_per_billion = 1e-9 * dimless = ppb