TOLERANCE TABLES TO BE USED IN CONNECTION WITH THE 
ENFORCEMENT OF THE FEDERAL SEED ACT 
’ 

(Seedsmen should remember that the tolerances are not for the purpose of permitting labeling to show higher quality than is 
actually found by test. The tolerances are provided to take care of the unavoidable variation in the results of tests and difficulty 
in bringing seed to uniform quality. It would be the part of wisdom to label the seed as indicated by test and certainly not to 
show higher quality than is indicated by test. There are numerous indications that seedsmen are applying the tolerance to the 
results of tests when labeling seed for shipment in interstate commerce. This is certain to lead to difficulty. The seedsman will 
need the protection of the tolerance if he labels the seed on the basis of the results of a test. If the tolerance is applied prior 
to labeling the seed, the seedsman in effect deprives himself of the protection of the tolerance.) 
TABLE OF TOLERANCE FOR PURE SEED VARIATIONS FOR OTHER THAN CERTAIN CHAFFY GRASSES 
Value % .00 
100 .60 
99 79 
98 .99 
97 1.18 
96 1.36 
95 155 
94 Ne 
93 1.90 
92 2.07 
91 2.23 
90 2.40 
89 255 
88 AIA 
87 2.86 
86 3.00 
85 SH05 
84 3.28 
83 3.42 
82 3.55 
81 3.67 
80 3.80 
79 3.91 
78 4.03 
77 4.14 
76 4.24 
75 4.35 
74 4.44 
73 4.54 
72 4.63 
71 4.71 
70 4.80 
69 4.87 
68 4.95 
67 5.02 
66 5.08 
65 Sty 
64 5.20 
63 5.26 
62 Sl 
61 Be 
60 5.40 
59 5.43 
58 5.47 
57 5.50 
56 5.52, 
55 5155 
54 5.56 
oS 5.58 
52 5.59 
51 5.59 
50 5.60 
10 
Mil 
97 
1.16 
1.34 
1.52 
LA 
1.88 
2.05 
Zoe, 
2.38 
2.54 
2.67 
2.84 
2.99 
3.13 
3.27 
3.40 
3.53 
3.66 
3.78 
4.02 
4.13 
4.23 
4.33 
BS 
ww 
NO 
mumwmow mnt 
ninwnine 
OOOAHA Ff 
20 
75 
95 
1.14 
1.33 
1.50 
1.69 
1.86 
2.03 
2.20 
2.36 
2.52 
2.83 
2.97 
3.12 
3.26 
3.39 
3.02 
3.65 
Shi 
3.89 
4.00 
4.12 
4.22 
4.32 
4.42 
4.52 
4.61 
4.70 
4.78 
4.86 
4.93 
5.00 
5.07 
B1S 
5.19 
eras 
5.30 
5.34 
5:39 
5.43 
5.46 
5.49 
5.52 
5.54 
5.56 
Sy 
5.59 
5.59 
5.59 
.30 
421 
4.31 
4.41 
4.51 
4.60 
4.69 
4.77 
nob 
oo 
RSON 
DOHhOfOW 
OV 
\o 
Unt un ee wwhhnee 
7 
40° 
3.62 
3.75 
3.87 
3.98 
4.09 
4.20 
4.30 
4.40 
4.59 
4.68 
4.76 
4.92 
4.99 
5.06 
5.12 
5.18 
5.24 
5.29 
5.34 
5.38 
5.42 
5.45 
5.49 
Sod 
5.54 
5.56 
S97, 
5.58 
5.59 
5.59 
50 
.69 
89 
1.08 
ay, 
1.45 
1.63 
1.81 
1.98 
2.15 
2.31 
2.47 
2.63 
2.78 
2.92 
3.07 
3.21 
SS 
3.48 
3.61 
SM 
3.85 
3.97 
4.08 
4.19 
4.29 
4.39 
4.49 
4.58 
4.67 
4.75 
4.83 
4.9] 
4.98 
5.05 
511 
WHwNNe 
NIW OWN 
CNN UT 
Mmnunmn MnNraRA pL 
WOmonnr WrOMmr 
.60 
ae 
RaBsZ 
Fe es 
Wood 
WWNNRS ® 
NTI WD 00 WN 
Minn Unb pA 
OCOWNIMG WOME 
-70 
SEaGn Beaks SeQQos 
UMA UN UT 
Oo O CONT U1 Wr oo 
-80 
63 
83 
1.04 
r21 
1.40 
we 
e~N 
283 SR 
“oO 
Ans 
on Wh 
RSERS 
09 00 Ny 
Or w 
5.59 
90 
61 
81 
1.01 
1.20 
1.38 
1.56 
1.74 
1.91 
2.08 
aps 
2.41 
ray | 
ene 
2.87 
3.02 
3.30 
3.43 
3.56 
3.68 
3.81 
3.92 
4.04 
4.15 
4.25 
4.35 
4.45 
4.55 
4.64 
4.72 
4.80 
4.88 
4.95 
5.02 
tnint ints x WwNNHO 
en =a Reo CR 
Soh I 
wu 
0 © 
Value % 
The tolerance for pure seed on purity less than 50% is the same as the tolerance for the larger part of the difference between 
the purity and 100%. 
Example: If the purity test is 96.40% use the table in this manner: Find 96 in the “Value” column, then the .40 at top of table. 
These two intersect at 1.29. Therefore the tolerance allowed would be 1.29%. 
64 
SEED TRADE 

i 
