Data Search of Major Classification
| Major Class | Parent | Descriptor | Acronym | Synonym | Chinese Descriptor | Spanish Descriptor | Reference | Definition |
| Product | Polypropylene | Polipropileno | AFS Glossary | A thermoplastic polymeric material, resistant to a broad range of chemicals. When used as a membrane, polypropylene is hydrophobic. |
| Major Class | Parent | Descriptor | Acronym | Synonym | Chinese Descriptor | Spanish Descriptor | Reference | Definition |
| None defined at this time . . . | ||||||||