NSF/ANSI 20-2016 pdf free download

NSF/ANSI 20-2016 pdf free download. Food Equipment – Commercial bulk milk dispensing equipment.
1 General 1.1 Purpose This Standard establishes minimum food protection and sanitation requirements for the materials, design, fabrication，construction, and performance of commercial bulk milk dispensers and their related components. 1.2 Scope This Standard contains requirements for bulk milk dispensers designed to dispense servings of milk or milk products by manual or machine actuation. This Standard does not apply to dispensing freezers (soft-serve machines), vending machines, or manual food and beverage dispensing equipment covered by the scope of other NSF standards. Commercial bulk milk and milk product dispensing equipment materials and components 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 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, commercial bulk milk dispensing equipment that incorporates alternate materials, design, and construction may be acceptable when such equipment meets the 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.
4.2 Solder Solder containing lead as an intentional ingredient shall not be used in a food zone or splash zone. 4.3 Sound dampening materials Sound dampening materials shall conform to 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. 4.4 Gaskets Gaskets shall be made of resilient rubber, rubber-like materials, plastics, or a combination thereof. 5 Design and construction This section contains design and construction requirements for equipment covered within the scope of this Standard. Unless otherwise specified, splash zone design and construction requirements shall apply to the interiors of bulk milk dispensers in which bulk milk containers are held. 5.1 General sanitation 5.1.1 Bulk milk dispensers shall be designed and manufactured to prevent the harborage of vermin and the accumulation of dirt and debris, and to permit the inspection, maintenance, servicing, and cleaning of the equipment and its components. 5.1.2 Bulk milk dispensing equipment shall be designed so that bulk milk containers may be added and removed and milk may be dispensed in a sanitary manner. 5.1.3 Food zones shall be readily accessible and easily cleanable or shall be designed for in-place cleaning when a readily accessible design is not feasible.
5.6 Insulation 5.6.1 Insulation shall be installed so as to prevent it from separating, settling, or becoming compacted under use conditions. 5.6.2 Insulated spaces in the food and splash zone shall be closed. Tigh-itting, readily removable plugs conforming to the materials requirements of the zone of intended use may be used to seal openings to insulated spaces. 5.7 Reinforcing and framing members 5.7.1 Exposed reinforcing and framing members and gussets shall be easily cleanable. Reinforcing and framing members shall be designed and manufactured to prevent the harborage of vermin (see figure 2). 5.7.2 Horizontal angles of reinforcing and framing members and gussets shall not be located where debris may accumulate. 5.7.3 Vertical channels that form hollow sections shall be closed at each end, open at each end, or readily accessible along the entire channel. All other hollow sections shall be closed at each end. 5.8 Inspection and maintenance panels Where necessary for equipment inspection and maintenance, removable panels of adequate size shall be provided. Each panel shall be sized to permit removal and replacement by one person. 5.9 Doors 5.9.1 Doors shall be sized to fit their openings and shall close properly. 5.9.2 Sliding doors shall slide freely and shall be readily removable. 5.9.3 Exposed channel sections on single panel doors shall be inverted or easily cleanable. Clean-outs shall be provided if channels are not inverted (see figure 3).