Form This specification covers a nitrile (NBR) rubber in the form of sheet@ strip@ tubing@ extrusions@ and molded shapes. Application Primarily for parts@ such as gaskets@ diaphragms@ bushings@ grommets@ and sleeves@ requiring resistance to aromatic and aliphatic fuels when continuously or alternately exposed to both. Safety Hazardous Materials While the materials@ methods@ applications@ and processes described or referenced in this specification may involve the use of hazardous materials@ this specification does not address the hazards which may be involved in such use. It is the sole responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take necessary precautionary measures to ensure the health and safety of all personnel involved.