CPV code 19640000 designates Polythene waste and refuse sacks and bags in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
19640000 is a leaf code — the most specific level of its branch — so it can be used directly as the main CPV code of a contract notice. If it does not quite fit, check the neighbouring codes under 19600000 (Leather, textile, rubber and plastic waste).