State of Sinter
Method 813 evaluates the degree of sinter (or densification) of polytetrafluoroethylene (PTFE) insulation on a wire specimen using a Differential Scanning Calorimeter (DSC) as described in ASTM D4591. A minimum 18-inch length specimen is required.The PTFE specimen is prepared by removing just the PTFE portion of the insulation structure. The weight of the PTFE specimen […] Read more