w w w . c a r l o n . c o m 188 Rigid Nonmetallic Conduit Technical Information Corrosion Resistance of Carlon Schedule 40 and Schedule 80 PVC Conduit and Fittings Carlon Schedule 40 and Schedule 80 are generally acceptable for use in environments containing the chemicals below. These environmental resistance ratings are based upon tests where the specimens were placed in complete submergence in the reagent listed. Schedule 40 and Schedule 80 can be used in many process areas where chemicals not on this list are manufactured or used because worker safety requirements dictate that any air presence ...
