ASTM F1697-96 Standard Specification for Poly(Vinyl Chloride) (PVC) Profile Strip for Machine Spiral
F1697-96 Standard Specification for Poly(Vinyl Chloride) (PVC) Profile Strip for Machine Spiral-Wound Liner Pipe Rehabilitation of Existing Sewers and Conduits
http://www.astm.org/cgi-bin/SoftCart.exe/DATABASE.CART/PAGES/F1697.htm?L+mystore+ifma3146.