The NEC is developed by NFPA's Committee on the National Electrical Code, which consists of 19 (20 in 2008) code-making panels and a technical correlating committee.Work on the NEC is sponsored by the National Fire Protection Association.The NEC is approved as an American national standard by the American National Standards Institute (ANSI). It is formally identified as ANSI/NFPA 70. First published in 1897, the NEC is updated and published every three years.he NEC is approved as an American national standard by the American National Standards Institute (ANSI). It is formally identified as ANSI/NFPA 70. First published in 1897, the NEC is updated and published every three years.
Neoprene or polychloroprene is a family of synthetic rubbers that are produced by polymerization of chloroprene.Neoprene exhibits good chemical stability and maintains flexibility over a wide temperature range.eoprene is produced by free-radical polymerization of chloroprene. In commercial production, this polymer is prepared by free radical emulsion polymerization. Polymerization is initiated using potassium persulfate.
DonJoy Neoprene Knee Brace Undersleeves improves comfort and protect your skin from chafing.Made from top quality perforated neoprene the undersleeve provides compression and a bit of warmth. The perforations in the neoprene help your skin to breath and allow moisture to escape.Easy to apply and washable.