CPV code 50413000 designates Repair and maintenance services of checking apparatus in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
50413000 sits under 50410000 (Repair and maintenance services of measuring, testing and checking apparatus) and groups 2 more specific sub-codes. When classifying a tender, choose the narrowest code that still covers the full subject of the contract.