Piping Material Specification 12CS1T01 Class 125, Carbon Steel, 0.063" C.A. Utility (Air & Water)
standard by Process Industry Practices, 04/01/2000

Piping Material Specification 12CS1T01 Class 125, Carbon Steel, 0.063" C.A. Utility (Air & Water) (Technical Correction)
standard by Process Industry Practices, 06/01/2007

Piping Material Specification 12CS1T01 Class 125, Carbon Steel, 0.063" C.A. Utility (Air & Water) [Complete Revision]
standard by Process Industry Practices, 06/01/2016