NSF ANSI 52-2017 pdf free download.Supplemental flooring
1 General
1.1 Purpose
This Standard establishes minimum public health and sanitation requirements for supplemental flooring.Included are requirements for cleanability and durability, and resistance to the use environment,microbiological growth, and vermin.
1.2 Scope
Supplemental flooring covered by this Standard includes, but is not limited to, supplemental flooring for use in food preparation, dry storage, and warewashing areas.
Flooring 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 supplemental flooring 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, flooring that incorporates alternate materials, design, or construction may be acceptable when such flooring meets intent of the 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.
ASTM D256 2010. Standard Test Methods for Determining the lzod Pendulum Impact Resistance of Plastics3
ASTM D412-15. Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers – Tension3
ASTM D624-00 (2012). Standard Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers3
ASTM D638-14. Standard Test Method for Tensile Properties of Plastics3
ASTM D792-13. Standard Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement3
ASTM G21 -2015. Standard Practice for Determining Resistance of Synthetic Polymeric Materials to Fungp
IEEE/ASTM SI 10 – 2010. American National Standard for Metric Practice3
NSF/ANSI 2. Food equipment
NSF/ANSI 170. Glossary of food equipment terminology
4 Materials
4.1 General
Materials shall meet the following requirements and use environment conditions.
4.2 Resistance to microorganisms
Supplemental flooring materials shall be resistant to microbial action and shall not contribute to or support survival or growth of microorganisms when tested in accordance with 6.1.
4.3 Resistance to environment
Materials shall be resistant to deterioration when tested in accordance with 6.2 and 6.3.
4.3.1 Absorption/adsorption
Supplemental flooring shall not absorb or adsorb water or oil when tested in accordance with 6.2.
4.3.2 Temperature resistance
Supplemental flooring shall not be detrimentally unstable at use and cleaning temperature ranges when tested in accordance with 6.3.
4.4 Tensile strength
Supplemental flooring shall meet the appropriate performance test requirements of 6.4 for tensile strength and tear resistance.
4.5 Specific gravity
Supplemental flooring shall meet the appropriate performance test requirements of 6.5 for specific gravity.
5 Design and construction
5.1 General
Supplemental flooring shall be designed and manufactured to prevent the harborage of vermin and the accumulation of dust, dirt, splash, or spillage, and to facilitate maintenance, service, and cleaning.
Supplemental flooring shall be designed and manufactured so as not to buckle, curl, or warp during use or following cleaning performed in accordance with the manufacturer’s recommendations.
5.2 Cleanability
Supplemental flooring shall be easily cleanable in the use position or when removed. Single pieces or
interlocking parts shall be readily removable and shall not exceed 40 |Ib (18 kg) in weight. Flooring shall not exceed 25 ft2 (2.3 m2) in overall area, unless it can be rolled and easily carried by one person.
5.3 Self-draining
Supplemental flooring shall be designed and manufactured to be self-draining through and beneath. The walking surface shall be designed and manufactured to prevent the accumulation of liquids.
5.4 Manufacturer’s instructions
The manufacturer shall provide detailed guidelines for intended end uses and instructions for installation,cleaning, and maintenance with each order and shipment. The manufacturer’s cleaning instructions shall not stipulate the use of spray-type warewashing machines, or warewashing or vegetable preparation sinks, as acceptable cleaning methods.
