What is the tolerance threshold under the EU-Switzerland?

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

EU-Switzerland - HS 04

EU-Switzerland Free Trade Agreement

1 RegelnToleranz: 10%1973

0400-0499Dairy produce; birdsʼ eggs; natural honey; edible products of animal origin, not elsewhere specified or included

Manufacture in which all the materials of chapter 4 used are wholly obtained.