Where the declaration is blown, embossed, or molded on a glass or plastic surface rather than by printing, typing, or coloring, the lettering sizes specified in paragraphs (i) (1) through (4) of this section shall be increased by 1/16 of an inch.
weight wt.
ounce oz.
pound lb.
gallon gal.
pint pt.
quart qt.
fluid fl.
21 C.F.R. §501.105