Purchase specifications for biomedical materials. I. Sheet or film of polytetrafluoroethylene plastic
✍ Scribed by Homsy, Charles A.
- Publisher
- John Wiley and Sons
- Year
- 1968
- Tongue
- English
- Weight
- 281 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0021-9304
No coin nor oath required. For personal study only.
✦ Synopsis
The critical need for purchase specifications for implantable biomedical materials is the focus of this contribution. The elements in development of such specifications are presented with specific reference to a widely used high polymer, polytetrafluoroethylene. A specification for sheet or film of this plastic, as instituted by a major urban hospital, is presented in detail.
* Supplier of Teflon TFE resins is Plastics Ilept., E. I. du Font de Nemours & Co., Wilmington 98, ]>el. Other suppliers of TFE resins are Allied Chemical Corp., NYC, S . Y . , Imperial Chemical Industries, Ltd., London, England. t "Transverse," "I,ongitudinal," "MI)" and "CD" are technical terms which reference the direction of compression during the molding process. The above values shall have been obtained using ASTM test procedure Dl457-66.