90743100 - Toxic substances monitoring services

CPV code 90743100 in the EU Common Procurement Vocabulary refers to Toxic substances monitoring services. It sits at level 5 of the CPV hierarchy as a subcategory within the 90 division. This code is nested directly under 90743000, narrowing the broader category into the specific area of toxic substances monitoring services. As a leaf code, 90743100 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 toxic substances monitoring services. Contracting authorities across the EU use 90743100 in TED notices and national procurement portals to signal that a tender relates to toxic substances monitoring services.