ASTM F1970 : 2023 Title: Standard Specification for Special Engineered Fittings, Appurtenances or Valves for use in Poly (Vinyl Chloride) (PVC) or Chlorinated Poly (Vinyl Chloride) (CPVC) Systems Pages: 6 Year: 2023 Publisher: American Society for Testing and Materials Availability: Within 1-2 working days