NSF 5-2016

http://www.pdfengineers.org/164041-nsf-5-2016-.html

1 General1.1 PurposeThis Standard establishes minimum public health and sanitation requirements for the materials, design,construction, and performance of commercial water heaters, hot water supply boilers, and heat recoveryequipment. This Standard does not contain safety requirements.1.2 ScopeThis Standard contains requirements for heat recovery equipment and equipment intended to provide hotwater heated by electricity, gas, steam, or oil. The types of equipment covered by this Standard include,but are not limited to: automatic storage water heaters, circulating water heaters, hot water supply boilers,and steam heat exchangers. Instantaneous water heaters used to heat water other than for beverages arecovered under this Standard. Boilers used for space heating are not covered under this Standard.Materials and components covered under other NSF or ANSI Standards or Criteria shall also comply withthe requirements therein. This Standard is not intended to restrict new design, provided that such designmeets the minimum specifications described herein.1.3 Alternate materials, design, and constructionWhile specific materials, design, and construction may be stipulated in this Standard, equipment thatincorporates alternative materials, design, and construction may be acceptable when such equipmentmeets the intent of applicable requirements herein.

1.4 MeasurementDecimal and SI conversions provided parenthetically shall be considered equivalent. Metric conversionsand significant figure rounding have been made according to IEEE/ASTM SI 10.2 Normative referencesThe following documents contain provisions that, through reference, constitute provisions of this NSF/ANSIStandard. At the time this Standard was balloted, the editions listed below were valid. All documents aresubject to revision, and parties are encouraged to investigate the possibility of applying the most recentedition of the documents indicated below. The most recent published edition of the document shall be usedfor undated references