What is the tolerance threshold under the EU-Central America?

The general tolerance is 10% of the ex-works value of the finished product.

EU-Central America - HS 12

EU-Central America Association Agreement

1 RegelnToleranz: 10%2013

1200-1299Oil seeds and oleaginous fruits; miscellaneous grains, seeds and fruit; industrial or medicinal plants; straw and fodder

Manufacture in which all the materials of chapter 12 used are wholly obtained.