NSF ANSI 13:2017 pdf download.Refuse processors and processing systems.
Equipment covered by this Standard includes but is not limited to pulpers. disposers, and compactors used for processing refuse generated from facilities that may generate food wastes. These refuse processors are not intended for compaction of hazardous or infectious material. Specifically excluded are refuse collection trucks and refuse processors intended for use at transfer stations and in industrial operations.
Equipment components and materials covered under other NSF or NSF/ANSI Standards or Criteria shall also comply with the requirements therein. This Standard is not intended to restrict new unit design, provided that such design meets the minimum specifications described herein.
1.3 Alternate materials, design, and construction
While specific materials, design. and construction may be stipulated in this Standard, equipment that incorporates alternate materials, design. or construction may be acceptable when such equipment meets the intent of applicable requirements herein.
1.4 Measurement
Decimal and SI conversions provided parenthetically shall be considered equivalent. Metric conversions and
significant figure rounding have been made according to IEEE/ASTM SI 10.
2 Normative references
The following documents contain provisions that, through reference, constitute provisions of this NSF/ANSI Standard. At the time this Standard was balloted. the editions listed below were valid. All documents are subject to revision, and parties are encouraged to investigate the possibility of applying the recent editions of the documents indicated below. The most recent published edition of the document shall be used for undated references.
3 Definitions
Terms used in this Standard that have special technical meaning are defined in NSFANSl 170.
4 Materials
4.1 General
Materials shall withstand normal use and penetration of vermin, and shall be corrosion resistant.
4.2 Refuse-contact zone
Surfaces in the refuse-contact zone shall be smooth and easily cleanable. Materials shall be corrosion resistant or rendered corrosion resistant, with the exception of unprotected steel. which may be used where surfaces are self-cleaning.
4.3 Power and exterior zones
Surfaces in the power and exterior zones shall be smooth and either corrosion resistant or rendered corrosion resistant.
4.4 Welding
Welded seams and deposited weld material shall meet the applicable requirements of 4.1, 4.2, and 4.3.
4.5 Gaskets and packings
Gaskets and packings shall consist of resilient rubber, rubber-like materials, or plastic, and shall comply with the applicable requirements of 4.1, 4.2, and 4.3.
4.6 Plastic resin systems
Plastic resin systems may be used if in compliance with the applicable requirements of 4.1, 4.2, and 4.3.
4.7 Sound-dampening materials
Sound-dampening materials shall meet the requirements of the zone in which they are located except that they are not required to be smooth. Non-curing sound-dampening materials shall not be used in exposed areas.NSF ANSI 13 pdf download.