This specification covers asphalt binders graded by performance. Grading designations are related to the average seven-day maximum pavement design and minimum pavement design temperatures. This specification contains Table 1 and Table 2. Table 2 incorporates PP42 for determining the critical low cracking temperature using a combination of T 313 and T 314 test procedures. If no table is specified@ the default is Table 1. Note 1??For asphalt cements graded by penetration at 25?? see M 20. For asphalt cements graded by viscosity at 60?? see M 226. Note 2??R 29 provides information for determining the performance grade of an asphalt binder.?