INSHELL
Minimum size + 26/64 inch
Maximum loose kernels +4% on all grades

SIZE
18-20 tolerance means 17.5 to 20.5
21-25 tolerance means 20.5 to 25.5
26-30 tolerance means 25.5 to 30.5

NON-SPLIT
18/1000 inch x ¼ inch
.018 x .25 feeler will not go through

ADHERING HULL
When 1/16 of the nut has adhering hull

LIGHT STAIN
Natural: stain cover ¼ of nut
Dyed: stain readily noticeable

DARK STAIN
Natural: stain covers 1/8 of nut
Dyed: stain readily noticeable

PARTICLES & DUST
Less than 5/64 inch

FOREIGN MATERIAL
Greater than 5/64 inch

DAMAGE
Not readily noticeable mold that can be rubbed off kernel
Immature kernels (less than ¾ filled, greater than ½ filled)
Kernel spot (dark brown or gray spots greater than 1.8 of kernel)

SERIOUS DAMAGE
Readily noticeable mold on kernel or shell
Insect damage
Rancidity or decay

1.70 RULE FOR SIZE UNIFORMITY
10% largest nuts by count; 1.70 x 10% smallest nuts by count