1.1 This guide is intended for use in the selection, design, and installation of thermoplastic water systems for use outside buildings. For specific projects, a thorough review of this guide is recommended for the purpose of selecting specific materials, methods of joining, system design factor, and any special procedures deemed necessary to assure a satisfactory system.

1.2 It is recommended that governing codes and project specifications be consulted prior to the use of this guide. Nothing in this guide should be construed as recommending practices or systems at variance with governing codes and project specifications.

1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. The pipe, fittings, and joining materials shall meet the requirements of one or more of the following component product standards listed in 1.3.1 through 1.3.3 to the extent applicable. Those pipe standards followed by are outside diameter-controlled pipes. Those followed by are inside diameter-controlled pipes.

1.3.1 For poly(vinyl chloride) (PVC) plastic piping components: ASTM

Designation Poly(Vinyl Chloride) (PVC) Plastic Pipe, Schedules 40, 80

and 120 (a)

D1785Poly(Vinyl Chloride) (PVC) Plastic Pipe (SDR-PR) (a)

D2241 Threaded Poly(Vinyl Chloride) (PVC) Plastic Pipe Fittings,

Schedule 80 D2464 Poly(Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule

40 D2466 Socket-Type Poly(Vinyl Chloride) (PVC) Plastic Pipe

Fittings, Schedule 80 D2467 Solvent Cements for Poly(Vinyl Chloride) (PVC) Plastic Pipe

and Fittings D2564 Bell-End Poly(Vinyl Chloride) (PVC) Pipe (a) D2672 Poly (Vinyl Chloride) (PVC) Plastic Tubing (a)

Socket-Type Poly(Vinyl Chloride) (PVC) Plastic Line

Couplings Joints for Plastic Pressure Pipes Using Flexible Elastomeric

Seals D3139 Elastomeric Seals (Gaskets) for Joining Plastic Pipe F477 PVC and ABS Injected Solvent Cemented Plastic Pipe

Joints F545

1.3.2 For polyethylene (PE) plastic piping components:

Title of Specification
ASTM

Designation Polyethylene (PE) Plastic Pipe, (SDR-PR) (b)

D2239 Plastic Insert Fittings for Polyethylene (PE) Plastic Pipe D2609 Socket-Type Polyethylene Fittings for Outside Diameter-

Controlled Polyethylene Pipe ( a) D2683 Polyethylene (PE) Plastic Tubing (a)

D2737 Polyethylene (PE) Plastic Pipe (SDR-PR) Based on

Controlled Outside Diameter (a) D3035 Butt Heat Fusion Polyethylene (PE) Plastic Fittings for

Polyethylene (PE) Plastic Pipe and Tubing D3261

1.3.3 For poly(vinyl chloride) (PVC) and polyethylene (PE) Plastic Piping Components Issued By the American Water Works Association: C900 Poly(Vinyl Chloride) (PVC) Pressure Pipe,4-inch through 12-inch, for Water (a)C901 Polyethylene (PE) Pressure Pipe, Tubing and Fittings, small-inch through 3-inch, for Water

1.3.4 Pipes with wall thicknesses less than 1.50 mm (0.06 in.) are not recommended.

1.4 Other Joining DevicesJoining devices other than those covered by the listed standards may be selected by the user on the basis of his own engineering evaluation and service experience.

1.5This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.