1. American Association of State Highway Officials (AASHO) (1942). “Standard Specifications for Tar Use in Road Construction,” M 52–42. Washington, D.C.
2. ASTM (1955). “Specifications for Coal-Tar Pitch for Roofing, Dampproofing, and Waterproofing,” D450–41. Am. Soc. Test. Mater., Philadelphia, Pennsylvania.
3. ASTM (1968). “Standard Specification for Tar,” D 490–47. Am. Soc. Test. Mater., Philadelphia, Pennsylvania. (Reapproved, 1968.)
4. ASTM (1970). “Coal Tar Saturated Roofing Felt for Use in Waterproofing and in Constructing Built-up Roofs,” D227–56. Am. Soc. Test. Mater., Philadelphia, Pennsylvania. (Reapproved, 1970.)
5. ASTM (1972). “Woven Burlap Fabrics Saturated with Bituminous Substances for Use in Waterproofing,” D 1327–59. Am. Soc. Test. Mater., Philadelphia, Pennsylvania. (Reapproved, 1972.)