ANSI - American National Standards Institute
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Voluntary Standards Cover the Spectrum:

From Dishwashers to Submersible Pumps

New York, Jul 18, 2002

Like the steady pulse of a heartbeat that performs an invaluable task for the human body involuntarily, voluntary standards secure the reliable function of the home and workplace without the average citizen's awareness.

In an effort to communicate the vital role that standards play in daily life, ANSI Online News will publish on an ongoing basis 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. Here are two of the latest selections:


With the invention of the hand-operated mechanical dishwasher by a woman named Josephine Cochrane in 1893, the daily chore of washing dishes was made easier. Today, more than half of all American kitchens are fit with a dishwasher, but exactly how good is this household appliance at getting the grime and the grit off of your dirty dishes? The National Sanitation Foundation International (NSF), an ANSI member and ANSI-accredited standards developer, recently announced the publication of NSF/ANSI 184-2001: Residential Dishwashers, the first American National Standard (ANS) covering public health requirements for household appliances. This new standard, developed with technical guidance from manufacturers of the appliance, provides methodology and evaluation criteria to ensure that dishwashers clean and sanitize dishes to assist in preventing food-borne illness. In addition, the Energy Department (DOE) has said it will use data to come up with new regulations on the energy efficiency of dishwashers now on the market that use microprocessors to judge the amount of residue on dishes, and adjust the washing cycle accordingly.

Submersible Pumps

Originally only used in Europe, submersible water pumps were not seen in the U.S. until the mid 1950's. When the question "how does an electric motor-powered pump run under water" was finally solved and a system was developed to lifts the pumps out of sewage wells for easy maintenance and repair, these pumps became popular. Today, underwater sewage pumps are flood-proof and designed as vertical, direct-coupled, extra-heavy duty units that have solid-handling, non-clog capability.

The Hydraulic Institute (HI) has recently published a new American National Standard for Submersible Pump Tests (ANSI/HI 11.6-2001) that applies to the testing of centrifugal submersible pumps driven by induction motors and provides recommendations for performance, hydrostatic, net positive suction head required, submersible motor integrity, and vibration tests. The new standard, which was developed by HI along with the Submersible Wastewater Pumps Association, also provides guidelines for situations in which the test facility is unable to test at rated speed due to limitations such as power, electrical frequency, or flow capability.

This "standards snapshot" was made possible by the steady stream of press information disseminated by standards developing organizations to keep the ANSI Federation abreast of their achievements. As the Institute receives news of published voluntary standards and voluntary standards initiatives with broad appeal and impact, similar articles will be posted to the ANSI Online News page. Please continue to forward your updates to the Communications and Public Relations department at (f) 212.398.0023 or (e) For additional information on the wide array of standards applications, see the Media Tips and Case Studies section of the Institute's website.

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