C443-21 Standard Specification for Joints for Concrete Pipe and Manholes, Using Rubber Gaskets
C1619-23 Standard Specification for Elastomeric Seals for Joining Concrete Structures
C1677-11a(2017) Standard Specification for Joints for Concrete Box, Using Rubber Gaskets
C1896-20 Standard Specification for Joints for Concrete Arch Pipe Using Profile Rubber Gaskets