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AWWA C950-25 Fiberglass Pressure Pipe, 2025
- Foreword [Go to Page]
- I. Introduction. [Go to Page]
- I.A. Background. This standard provides direction and guidance in selecting and purchasing fiberglass pipe for use as pressure pipe in water distribution (including services) and transmission systems for both aboveground and belowground installations. [Go to Page]
- I.B. History. In June 1971, the AWWA Engineering and Construction Technical and Professional Committee organized the Reinforced Plastics Committee to evaluate both the use of reinforced plastics in the water-supply industry and the need for appropriate AW [Go to Page]
- I.C. Acceptance. In May 1985, the US Environmental Protection Agency (USEPA) entered into a cooperative agreement with a consortium led by NSF International (NSF) to develop voluntary third-party consensus standards and a certification program for direct
- II. Special Issues. [Go to Page]
- II.A. Nominal Metric Pipe Sizes, Dimensions, and Tolerances. Nominal metric pipe sizes, dimensions, and tolerances were obtained from International Organization for Standardization (ISO) and the European Committee for Standardization (CEN) product standar
- III. Use of This Standard. It is the responsibility of the user of an AWWA standard to determine that the products described in that standard are suitable for use in the particular application being considered. [Go to Page]
- III.A. Purchaser Options and Alternatives. The following items should be covered by the purchaser: [Go to Page]
- III.B. Manufacturer Options and Alternatives. The following items should be provided by the manufacturer:
- III.C. Modification to Standard. Any modifications to the provisions, definitions, or terminology in this standard must be provided by the purchaser or manufacturer.
- IV. Major Revisions. Major revisions made to the standard in this edition include the following:
- V. Comments. If you have any comments or questions about this standard, please call AWWA Engineering and Technical Services at 303.794.7711; write to the department at 6666 West Quincy Avenue, Denver, CO 80235-3098; or email standards@awwa.org.
- AWWA Standard
- SECTION 1: GENERAL
- Sec. 1.1 Scope
- Sec. 1.2 Purpose
- Sec. 1.3 Application
- SECTION 2: REFERENCES
- SECTION 3: DEFINITIONS
- SECTION 4: REQUIREMENTS
- Sec. 4.1 Permeation
- Sec. 4.2 Workmanship
- Sec. 4.3 Cell Classification System
- Sec. 4.4 Materials
- Sec. 4.5 Pipe Dimensions [Go to Page]
- Table 1 Dimensions for inside diameter (ID) series pipe [Go to Page]
- Table 2 Metric dimensions for inside diameter (ID) series pipe
- Sec. 4.6 Pressure Classes
- Sec. 4.7 Stiffness Classes
- Sec. 4.8 Long-Term Ring-Bending Strain
- Sec. 4.9 Joint Types and Requirements
- SECTION 5: VERIFICATION
- Sec. 5.1 Inspection and Testing [Go to Page]
- Table 7 Hydrostatic leak test pressure requirements [Go to Page]
- Table 8 Ring deflection without damage or structural failure [Go to Page]
- Table 9 Minimum pipe stiffness requirements
- Table 10.B Minimum hoop tensile strength requirements (from Eq 2) (N/mm of width)
- Table 11.A Minimum axial strength requirements (lbf/in. of circumference)
- Table 11.B Minimum axial strength requirements (N/mm of circumference)
- Table 12 Beam-strength requirements [Go to Page]
