Produktna berza uses the Commodity Exchange Standard, which determines the minimum quality standard that corn needs to meet as a commodity on the Commodity Exchange Listing.

According to that standard, corn should have the following parameters:

Moisture max	14,5%
Broken kernels max	5,0%
Defective kernels max	4,0%
Heat damaged kernels max	2,0%
Extraneous matter: until % (of which max 0,5% of inorganic origin)	1,0%