(a) Tubería y acoples (“fittings”) para agua potable
(1) National Sanitation Foundation (NSF); Norma 61
(2) American Society for Testing and Materials (ASTM)
(3) American Water Works Association (AWWA); ANSI/AWWA C900-97 & C905-97; 909-97
(4) FM Approvals, Class Number 1612
(5) Underwriters Laboratories Inc., (UL)
(b) Tubería, conductos y acoples “Fittings” para uso eléctrico
(1) Underwriters Laboratories Inc., (UL)
(2) Nacional Electrical Manufacturers Association, (NEMA)
(3) Canadian Standards Association (CSA)
(c) Tubería y acoples “Fittings” para uso sanitario y drenaje
(1) National Sanitation Foundation (NSF); Norma 61
(2) American Society for Testing and Materials (ASTM)
(3) The American Association of State Highway and Transportation Officials (AASHTO)
(4) International Association of Plumbing and Mechanical Officials, (IAPMO)
(5) Canadian Standards Association, (CSA)
(d) Mueblería en Plástico
(1) American Society for Testing and Materials (ASTM)