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NSF 50-2004

NSF 50-2004 Historical

Circulation System Components and Related Materials for Swimming Pools, Spas/Hot Tubs

standard by NSF , 03/31/2004

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Full Description

The purpose of this Standard is to establish minimum materials, design and construction, and performance requirements for equipment commonly included in the water circulation system of residential and public swimming pools, spas, or hot tubs. It incorporates minimum requirements for equipment previously covered by the following individual NSF standards: Standard 9 - Diatomite-type filters for swimming pools; Standard 10 - Sand-type filters for swimming pools; Standard 11 - Recessed automatic surface skimmers for swimming pools; Standard 17 - Centrifugal pumps for swimming pools; Standard 19 - Adjustable output rate chemical feeding equipment for swimming pools; Standard 27 - Multiport valves for swimming pools; Standard 28 - Cartridge-type filters for swimming pools; and Standard 47 - Flow through chemical feeding equipment.

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Document History

NSF/ANSI/CAN 50-2025

October 2025
Equipment and Chemicals for Swimming Pools, Spas, Hot Tubs, and Other Recreational Water Facilities
- Most Recent
NSF/ANSI/CAN 50-2024

July 2024
Equipment and Chemicals for Swimming Pools, Spas, Hot Tubs, and Other Recreational Water Facilities
- Historical Version
NSF/ANSI/CAN 50-2023e

November 2023
Equipment and Chemicals for Swimming Pools, Spas, Hot Tubs, and Other Recreational Water Facilities
- Historical Version
NSF/ANSI/CAN 50-2023

October 2023
Equipment and Chemicals for Swimming Pools, Spas, Hot Tubs, and Other Recreational Water Facilities
- Historical Version
NSF/ANSI/CAN 50-2021

November 2021
Equipment and Chemicals for Swimming Pools, Spas, Hot Tubs, and Other Recreational Water Facilities
- Historical Version
NSF/ANSI/CAN 50-2020

June 2021
Equipment and Chemicals for Swimming Pools, Spas, Hot Tubs, and Other Recreational Water Facilities
- Historical Version
NSF/ANSI/CAN 50-2019

December 2019
Equipment and Chemicals for Swimming Pools, Spas, Hot Tubs, and Other Recreational Water Facilities (NSF/ANSI/CAN 50-2019)
- Historical Version
NSF 50-2017

August 2017
Equipment for Swimming Pools, Spas, Hot Tubs and other Recreational Water Facilities
- Historical Version
NSF 50-2016a

December 2016
Equipment for Swimming Pools, Spas, Hot Tubs and other Recreational Water Facilities
- Historical Version
NSF 50-2016

February 2016
Equipment for Swimming Pools, Spas, Hot Tubs and other Recreational Water Facilities
- Historical Version
NSF 50-2015

January 2015
Equipment for Swimming Pools, Spas, Hot Tubs and other Recreational Water Facilities
- Historical Version
NSF 50-2014

June 2014
Equipment for Swimming Pools, Spas, Hot Tubs and other Recreational Water Facilities
- Historical Version
NSF 50-2013

December 2013
Equipment for Swimming Pools, Spas, Hot Tubs and other Recreational Water Facilities
- Historical Version
NSF 50-2012

September 2012
Equipment for Swimming Pools, Spas, Hot Tubs and other Recreational Water Facilities
- Historical Version
NSF 50-2011 Addendum

November 2011
Addendum: Equipment for Swimming Pools, Spas, Hot Tubs and other Recreational Water Facilities
- Historical Version
NSF 50-2011

August 2011
Equipment for Swimming Pools, Spas, Hot Tubs and other Recreational Water Facilities
- Historical Version
NSF 50-2010

August 2010
Equipment for Swimming Pools, Spas, Hot Tubs and other Recreational Water Facilities - Evaluation criteria for materials, components, products, equipment and systems for use at recreational water facilities
- Historical Version
NSF 50-2009a

May 2009
Equipment for Swimming Pools, Spas, Hot Tubs and other Recreational Water Facilities - Evaluation criteria for materials, components, products, equipment and systems for use at recreational water facilities
- Historical Version
NSF 50-2009

February 2009
Equipment for Swimming Pools, Spas, Hot Tubs and other Recreational Water Facilities - Evaluation criteria for materials, components, products, equipment and systems for use at recreational water facilities
- Historical Version
NSF 50-2008

February 2008
Equipment for Swimming Pools, Spas, Hot Tubs and other Recreational Water Facilities - Evaluation criteria for materials, components, products, equipment and systems for use at recreational water facilities
- Historical Version
NSF 50-2007

April 2007
Circulation System Components and Related Materials for Swimming Pools, Spas/Hot Tubs
- Historical Version
NSF 50-2005 Addendum 1.0

December 2006
Addendum 1: Circulation System Components and Related Materials for Swimming Pools, Spas/Hot Tubs
- Historical Version
NSF 50-2005

November 2005
Circulation System Components and Related Materials for Swimming Pools, Spas/Hot Tubs
- Historical Version
NSF 50-2004

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March 2004
Circulation System Components and Related Materials for Swimming Pools, Spas/Hot Tubs
- Historical Version
NSF 50-2001

May 2001
Circulation System Components and Related Materials for Swimming Pools, Spas/Hot Tubs
- Historical Version
NSF 50-2000

May 2000
Circulation System Components and Related Materials for Swimming Pools, Spas/Hot Tubs
- Historical Version
NSF 50-1985

January 1985
Circulation System Components for Swimming Pools, Spas, or Hot Tubs
- Historical Version
NSF 50-1979

January 1979
Circulation System Components and Related Materials for Swimming Pools, Spas/Hot Tubs - WITHDRAWN - See current edition
- Historical Version

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Published:

03/31/2004

ANSI:

ANSI Approved

Number of Pages:

112

File Size:

2 files , 890 KB

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NSF 50-2004 Historical

Circulation System Components and Related Materials for Swimming Pools, Spas/Hot Tubs

Document Set

Complete Document

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Full Description

Also Bought By Customers

Normative References

Document History

NSF/ANSI/CAN 50-2025

NSF/ANSI/CAN 50-2024

NSF/ANSI/CAN 50-2023e

NSF/ANSI/CAN 50-2023

NSF/ANSI/CAN 50-2021

NSF/ANSI/CAN 50-2020

NSF/ANSI/CAN 50-2019

NSF 50-2017

NSF 50-2016a

NSF 50-2016

NSF 50-2015

NSF 50-2014

NSF 50-2013

NSF 50-2012

NSF 50-2011 Addendum

NSF 50-2011

NSF 50-2010

NSF 50-2009a

NSF 50-2009

NSF 50-2008

NSF 50-2007

NSF 50-2005 Addendum 1.0

NSF 50-2005

NSF 50-2004

NSF 50-2001

NSF 50-2000

NSF 50-1985

NSF 50-1979

Amendments, rulings, supplements, and errata

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NSF 50-2004 Historical