8 BULLETIN 1475, U. S. DEPARTMENT OE AGRICULTURE 
Cold-pressed oil. — Oil produced by cold presses or expelier process is tender- 
able on contracts for tlie four grades of oil denned above when such products 
will refine within the requirements of the above rules. . Sellers are required to 
specify cold-pressed oil on invoices. 
Extracted oil. — Cottonseed oil, crude or refined, produced by extraction 
processes instead of by pressing, shall not be tenderable on contracts unless 
the nature of the oil is declared at the time of sale. 
EEFIXED OIL 
Choice summer yellow cottonseed oil. — Choice summer yellow cottonseed 
oil must be sweet in flavor and odor, prime in color, clear and brilliant in 
appearance, and free from water and settlings, and shall contain not more 
than one-eighth of 1 per cent free fatty acid. 
Prime summer yellow cottonseed oil. — Prime summer yellow cottonseed oil 
must be clear, sweet in flavor and odor, free from water and settlings, and of 
no deeper color than the two combined standard glasses of 35 yellow and 7.6 red 
on Lovibond's equivalent color scale, and shall not contain more than one- 
fourth of 1 per cent free fatty acid. 
Prime winter yellow cottonseed oil, — Prime winter yellow cottonseed oil must 
be free from water and settlings, sweet in flavor and odor, and of prime summer 
yellow color as described above and must stand clear, brilliant and limpid for 
five hours when tested as provided in these rules, and shall not contain more 
than one-fourth of 1 per cent free fatty acid. 
Good off summer yellow cottonseed oil, — Good off summer yellow cottonseed 
oil may be off in flavor and/or odor, but must be prime in color and free from 
water and settlings, and shall not contain more than one-fourth of 1 per cent 
of free fatty acid. 
Off summer yellow cottonseed oil. — Off summer yellow cottonseed oil shall be 
free from water and settlings, off in flavor or odor, but of no deeper color than 
the combined standard glasses of 35 yellow and 12 red on Lovibond's color scale, 
and shall not contain more than one-half of 1 per cent of free fatty acid. 
Reddish off summer yellow cottonseed oil. — Reddish off summer yellow cotton- 
seed oil designated as such may be of inferior flavor and odor and of no deeper 
color than the two combined standard glasses of 35 yellow and 20 red on Lovi- 
bond's equivalent color scale, shall be free from water and settlings, and shall 
not contain more than three-fourths of 1 per cent of free fatty acid. 
Bleaeliaole prime summer yellow cottonseed oil. — Bleachable prime summer 
yellow cottonseed oil must be clear, sweet in flavor and odor, free from water 
and settlings, and when bleached as provided by these rules shall be of no 
deeper color than the two combined standard glasses 20 yellow and 2.5 red on 
Lovibond's equivalent color scale, and shall not contain more than one-fourth 
of 1 per cent of free fatty acid. 
Prime summer white cottonseed oil, — Prime summer white cottonseed oil must 
be clear, free from water and settlings, sweet in flavor and odor, and shall be of 
no deeper color than the two combined standard glasses 20 yellow, 2.5 red on 
Lovibond's color scale, and shall not contain more than one-fourth of 1 per cent 
of free fatty acid. 
Prime winter white cottonseed oil, — Prime winter white cottonseed oil must 
be brilliant, sweet in flavor and odor, free from water and settlings, and the 
color of the oil shall not be darker than the combined standard glasses of 20 
yellow and 2.5 red on Lovibond's color scale, and must stand the cold test as 
prescribed in these rules, and shall not contain more than one-fourth of 1 per 
cent free fatty acid. 
Uses 
Befined cottonseed oil is used chiefly in the manufacture of lard 
substitutes or shortenings and oleomargarine. It is also employed ex- 
tensively as a salad and cooking oil. The inedible oil and soap stock 
obtained by refining the crude oil are used in making soap and soap 
powders. The press or oil cake is largely used as a feed for stock. 
Press cake of poor quality is used as a fertilizer. The stearin which 
separates when the refined cottonseed oil is wintered is used in 
making vegetable shortening. 
