ANN ARBOR, MICH. - Three cross-linked polyethylene material and tubing producers are the first to receive certification under new chlorine-resistance standards set forth by NSF International.
Brampton, Ontario-based AT Plastics Inc.; Padanaplast USA Inc. of Sheboygan, Wis.; and Vanguard Piping Systems Inc. in McPherson, Kan., have received certification that their products will resist chlorine corrosion for more than 40 years.
More companies are lined up for certification, said Nasrin Kashefi, NSF's operations manager for plumbing programs. Ann Arbor-based NSF, which acts as a third party to certify manufacturers, introduced the protocol in 1999, she said.
Currently, the certification is for hot-water piping; no standards are forthcoming for cold-water piping, Kashefi said. Chlorine is the most common disinfectant used in drinking water.