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ASTM F641-98a

Historical Revision

Standard Specification for Implantable Epoxy Electronic Encapsulants

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1.1 This specification covers thermoset plastics based on diglycidyl ethers of bisphenol A and amino functional curing agents or amine catalysts.

1.2 The epoxy encapsulants covered by this specification are intended to provide a tissue-compatible protective covering for implantable medical devices such as pulse generators, telemetry devices and RF receivers. The biocompatibility of epoxy plastics has not been established. Epoxy plastic is a generic term relating to the class of polymers formed from epoxy resins, certain curing agents or catalysts and various additives. Since many compositions and formulations fall under this category, it is essential that the fabricator assure safety of implantability of the specific composition or formulation for the intended use by current state-of-the-art test methods. This specification can be used as a basis for standardized evaluation of biocompatibility for such implantable encapsulants.

1.3 The encapsulants covered by this specification are for use in devices intended as long-term implants.

1.4 Limitations- This specification covers only the initial qualification of epoxy encapsulants for implantable electronic circuitry. Some of the requirements are not applicable to routine lot to lot quality control.


SDO ASTM: ASTM International
Document Number F641
Publication Date Oct. 10, 1998
Language en - English
Page Count 4
Revision Level 98a
Supercedes
Committee F04.11
Publish Date Document Id Type View
Aug. 1, 2009 F0641-09 Revision
Oct. 10, 1998 F0641-98A Revision
Jan. 1, 2023 F0641-09R23 Reaffirmation
Nov. 1, 2014 F0641-09R14 Reaffirmation
April 10, 2003 F0641-98AR03 Reaffirmation