NSF ANSI 20-2016 pdf download.Commercial bulk milk dispensing equipment
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.
5.1.4. Food zones for which in-place cleaning is intended shall be designed and manufactured so that cleaning and sanitizing solutions may be circulated or passed throughout the fixed system. The design shall ensure that cleaning and sanitizing solutions contact all food contact surfaces. The system shall be self- draining or capable of being completely evacuated. Equipment and appurtenances designed for in-place cleaning shall have a section of the cleaned area accessible for inspection or shall provide for other acceptable inspection methods. The manufacturer shall provide written instructions for the cleaning and sanitizing of all food zone surfaces for which in-place cleaning is intended. The type and concentration of sanitizing agent recommended in the instructions by the manufacturer shall comply with 40 CFR part 1 80.940.
5.1.5 Splash zone surfaces shall be accessible and easily cleanable.
5.1.6 Non-food zone surfaces shall be accessible and cleanable.
5.5 Fasteners
5.5.1 Fasteners shall not be used in a food zone.
5.5.2 Fasteners shall be easily cleanable. Fasteners meeting this requirement include, but are not limited to, slot-head and Phillips-head screws, hex head fasteners, and flush-break pop rivets. Hex key screws and non-flush-break pop rivets may be used in a splash zone or a nonfood zone provided that the heads are capped or flled.
5.5.3 Fasteners shall be tight ftting to the surface, except as permitted in 5.5.4.
5.5.4 No more than one locking washer and one flat washer shall be used per fastener head. The diameter of the washer adjacent to the fastening surface shall not be less than the diameter of the washer under the fastener head. External-tooth lock washers shall not be used.
5.5.5 There shall be no exposed threads, projecting screws, or studs in a food or splash zone. There shall be no more than 2.5 exposed threads or 1/4 in (0.25 in, 6.4 mm) of exposed threads, whichever is less, in a nonfood zone. Exposed threads on electrical cord strain relief devices in a nonfood zone shall be exempt.
5.5.6 The sharp point of a fastener shall not be exposed.
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-iting, 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.NSF ANSI 20-2016 pdf download
