1.1 This specification covers 14 grades of tar as follows: RT-1, RT-2, RT-3, RT-4, RT-5, RT-6, RT-7, RT-8, RT-9, RT-10, RT-11, RT-12, RT.C.B.-5, and RT.C.B.-6.
| ASTM International | |
|---|---|
| Product Category | Standards and Technical Documents |
| Product Number | ASTM D490-92(2001) |
| Product Name | Standard Specification for Road Tar |