150 MISC. PUB. 190, U.S. DEPT. OF AGRICULTURE 
For decay, grass, Small weeds, and yellow leaves, 
not more than 40 pieces are permitted in a 100-ounce 
sample. 
For damage by wood, muck chips, or other hard 
foreign material, not more than one piece over one 
half inch in length is permitted in a 100-ounce 
sample. 
For roots, large weeds, and damage by mildew, 
seed stems, seed buds, coarse stalks, insects, dirt, or 
other foreign material, not more than 10 ounces 
are permitted in a 100-ounce sample. 
No tolerance is permitted for worms. 
U.S. No. 3 shall consist of spinach which is free 
from worms and from damage caused by mildew, 
decay or insects. 
A tolerance of 25 percent, by weight, shall be per- 
mitted for spinach which fails to meet the require- 
ments of this grade but no part of this tolerance 
Shall be allowed for spinach which contains worms. 
Unclassified shall consist of spinach which does not 
conform to the requirements of any of the foregoing 
grades. 
UNITED STATES STANDARDS FOR STRAW- 
BERRIES 
(Effective Mar. 1, 1928) 
GRADES 
U.S. No. 1 shall consist of strawberries of one 
variety, with the cap (calyx) attached, which are 
firm, not overripe, underripe, or undeveloped; and 
which are free from mold or decay and from damage 
caused by dirt, moisture, foreign matter, disease, 
insects, or mechanical or other means. Unless other- 
wise specified the minimum size shall be not less than 
three quarters of an inch in diameter. 
In order to allow for variations other than size 
incident to proper grading and handling, not more 
than 10 percent, by volume, of the strawberries in any 
lot may be below the requirements of this grade, but 
not to exceed one half of this tolerance or 5 percent, 
Shall be allowed for defects causing serious damage, 
and not more than one fifth of this amount, or 1 per- 
cent, shall be allowed for decay. 
