500.22—Abbreviations.
The following abbreviations and none other may be employed in the required net quantity declaration:
Inch—in.
Feet or foot—ft.
Fluid—fl.
Liquid—liq.
Ounce—oz.
Gallon—gal.
Pint—pt.
Pound—lb.
Quart—qt.
Square—sq.
Weight—wt.
Yard—yd.
Avoirdupois—avdp.
Cubic—cu.