NSF ANSI 20 pdf free download

NSF ANSI 20 pdf free download.Commercial bulk milk dispensing equipment.
4.1 Conformance with NSF/ANSI 51
Materials shall conform to the requirements in NSFANSI 51 applicable to the zone in which the material is used.
4.2 Solder
Solder containing leaa 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.
5.1.4 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
180.940.
5.1.5 Splash zone surfaces shall be accessible and easily cleanable.
5.1.6 Non-food zone surfaces shall be accessible and cleanable.
5.1.7 Unexposed non-food zone surfaces shall be accessible or closed.
5.2 Internal angles and corners, food zone
5.2.1 All internal angles or corners of less than 135 shall be smooth and the radius shall not be less than 1/4 in (0.25 in, 6.4 mm).
5.2.2 For metals, solder or other fillet material shall not be used to affect the required minimum radius of an internal angle or corner.
5.2.3 For materials other than metal, the radius specified in 5.2.1 shall be effected using parent material or a material proven to be bonded and otherwise equal to or better than the parent material.
5.3 External angles and corners
Exposed external angles and corners in a food zone shall be sealed and smooth (see figure 1 a).
5.4 Joints and seams
5.4.1 Permanent joints and seams in a food or splash zone shall be sealed and smooth.
5.4.2 Permanent joints and seams in a nonfood zone shall be closed. Welded joints and seams in a nonfood zone shall be deburred.
NSF ANSI 20 pdf download.