Ill. Admin. Code tit. 77, § 906.25
a) The following federal and state regulations, standards and statutes are incorporated or referenced in various sections of this Part.
1) 1986 Annual Book of ASTM Standards:
American Society for Testing and Materials
1916 Race Street
Philadelphia, PA 19103
2) American Society for Testing and Materials (ASTM) required standards for approved plastic pipe and published by:
American Society for Testing and Materials
1916 Race Street
Philadelphia, PA 19103