www.pmmag.com/articles/94617-pvc-piping-system
PVC piping system
May 1, 2011

Grinnell Products’ G-MINE PVC Piping System is comprised of high-strength PVC pipes, couplings and fittings, all of which conform to ASTM D 1784. Manufactured from a specially formulated PVC compound, G-MINE PVC pipe and fittings provide higher impact strength over an extended period. Such strength allows installation of G-MINE PVC pipe and fittings in above-ground, exposed applications such as plumbing, HVAC and mining. The system is NSF-14-certified, except for SDR 13.5, which is NSF-61-certified.
Grinnell Products. www.grinnell.com. Circle 34