[mmbuna]

Products that meet all applicable performance standards for reclaimed water applications as required by NSF/ANSI Standard 14. No health effects evaluation is required.

NSF/ANSI Standard 14–Plastic Piping System Components and Related Materials, covers any material used in a plastic piping system, including PVC, CPVC, PE, PEX, PB,ABS,AC, NP, PP as well as brass, copper and other components.

Products Bearing the NSF-pw, NSF-CI-TD, NSF-CI-R, NSF-wc Marks (Certified to NSF/ANSI 61and applicable performance standards). Plastic piping systems and components intended for potable water applications.

Αν και τα παραπάνω είναι το ζουμί, για όσους έχουν όρεξη να διαβάσουν όλο το κατατοπιστικότατο κείμενο (8 σελίδες) εδώ: http://www.nsf.org/business/newsroom/plumbing03-3.pdf