1.1This specification covers asphalt binder for use in the construction of pavements.

Note 1:For asphalt binders graded by viscosity at 60°C, see Specification D3381. For performance-graded asphalt binder, see Specification D6373.

1.2This specification covers the following penetration grades:

40-50,	120-150, and
60-70,	200-300.
85-100,

1.3The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.