ASTM Material Specification
 
     
 
ASTM D 1710
 
  Standard Specification for Polytetrafluoroethylene (PFTE) Rod & Heavy-Walled Tubing  
     
 
ASTM D 3294
 
  Standard Specification for Polytetrafluoroethylene (PTFE) Resin Molded Sheet & Molded Basic Shapes