90715120 - Chemical works or oil refinery waste site investigation

CPV code 90715120 in the EU Common Procurement Vocabulary refers to Chemical works or oil refinery waste site investigation. It sits at level 6 of the CPV hierarchy as a subcategory within the 90 division. This code is nested directly under 90715100, narrowing the broader category into the specific area of chemical works or oil refinery waste site investigation. As a leaf code, 90715120 has no further subdivisions and represents the most precise classification available in this branch — buyers should reference it directly in tender notices when the procurement primarily concerns chemical works or oil refinery waste site investigation. Contracting authorities across the EU use 90715120 in TED notices and national procurement portals to signal that a tender relates to chemical works or oil refinery waste site investigation.