UL 1713:2017-05 Pressure Pipe and Couplings, Glass Fiber- Reinforced, for Underground Fire Service.
1.1 These requirements cover glass-fiber-reinforced, thermosetting-resin pipe (RTRP) and glass-fiber-reinforced, plastic-mortar pipe (RPMP), and their couplings. The pipe is for use in underground fire service systems and connections to such systems.
1.2 Pipe covered by these requirements is designated as Class 100, 150, 200, 250, or greater for rated working pressures of 100, 150, 200, 250 psig (0.69, 1.03, 1.38, and 1.72 MPa), or higher, respectively, and has a nominal inside diameter of 4 to 60 inches.
1.3 Requirements for the installation and use of RTRP and RPMP pressure pipe and couplings are specified in the Standard for the Installation of Private Fire Service Mains and their Appurtenances, ANSI/NFPA No. 24, and the Standard Practice for Underground Installation of “Fiberglass” (Glass-Fiber-Reinforced Thermosetting-Resin Pipe), ASTM D3839.
2 Units of Measurement
2.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information.
3 Undated Reference
3.1 Any undated reference to a code or standard appearing in the requirements of this standard shall be
interpreted as referring to the latest edition of that code or standard.
4.1 For the purpose of this standard, the following definitions apply.
4.2 EPOXY RESIN (THERMOSETTING) — A polymer containing two or more three-membered rings consisting of one oxygen and two carbon atoms, which is cured by cross-linking with an amine or anhydride hardener with or without heat, catalyst, or both.
4.3 GLASS FIBERS (STRUCTURAL WALL) — A commercial grade of E glass filaments the binder and sizing of which is compatible with the impregnating resin.
4.4 LINER — A filled or unfilled thermoplastic- or thermosetting-resin layer, nonreinforced or reinforced, forming the interior surface of the pipe.
4.5 PRESSURE CLASS — The working pressure of a specified pipe for water service at a specified maximum operating temperature.
4.6 POLYESTER RESIN (THERMOSETTING) — A polymer with two or more ester groups and containing ethylenic unsaturation, dissolved in a reactive diluent with vinyl unsaturation, that is cured by cross-linking by means of a free-radical initiated curing mechanism, such as peroxide catalyst and heat.UL 1713 pdf download.