Manual Curve Analysis for Type b Curves (Smooth Tear)—Smooth type tear curves often consist of a series of tear propagation or torn length sequences, each at essentially constant tearing force. In Fig. 4, Curve b shows two such sequences (1) and (2), with (2) approximately twice the length of (1). The tear strength for this type of curve should be calculated based on a weighted average force basis. A median force is specified for Type b tear curves because it is easier to obtain than an average, and it does not give undue weight to abnormally large or small peak forces.