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Voluntary Standards Cover the Spectrum: from Toilet Seats to Pressurized Enclosures


In an effort to communicate the vital role that standards play in daily life, the American National Standards Institute (ANSI) publishes a series of snapshots of the diverse standards initiatives undertaken in the global and national standards arena, many of which are performed by ANSI members and ANSI-accredited standards developers. Two of the latest selections follow:

Plastic Toilet Seats
Toilets may be an unglamorous topic, but the average person visits the loo, lavatory, water closet, latrine, or restroom approximately seven times a day - that's more than 2,500 times a year. During these visits, users encounter toilet seats of various shapes and materials: oval, round, padded, heated, glass, polymer, wooden, and plastic.

ANSI/ISA 12.04.04-2012 provides performance and test recommendations so that the enclosure and components mounted internally or protruding through the enclosure are unlikely to cause ignition of a surrounding flammable atmosphere, as well as recommendations so that users are unlikely to be injured by rupture of the enclosure due to failure of the pressure-regulating devices in the protective gas supply. ISA recommends ANSI/ISA 12.04.04-2012 be used in conjunction with NFPA 496-2013, Standard for Purged and Pressurized Enclosures for Electrical Equipment.

An ANSI organizational member and accredited standards developer, ISA is a global non-profit organization that develops standards, certifies industry professionals, provides education and training, publishes books and technical articles, and hosts conferences and exhibitions for automation professionals.


Jana Zabinski

Director, Communications and Public Relations


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Beth Goodbaum

Journalist/Communications Specialist


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