3-A® Sanitary Standards
Quick Reference of the
3-A Sanitary Standards & Accepted Practices
IMPORTANT NOTES & DISCLAIMER
Disclaimer
This list has been created as a quick guide reference of the current 3-A Sanitary Standards and Accepted Practices. It is not intended to replace, override or contradict the actual copyrighted standards and accepted practices. Though an effort has been made to ensure the accuracy of this reference list, it is not guaranteed, and should always be verified with the latest 3-A Sanitary Standards and Accepted Practices.
Notes
• This reference list was created January 4, 2013, using the 3-A Sanitary Standards and Accepted Practices as they were currently published in December 2012. The Pharmaceutical P3-A standards are also included.
• References for each standard include the cross reference 3-A Standards & Accepted Practices
• Other references may also be referenced in the Standards and Accepted Practices but are not listed in this quick guide in all cases. Please verify all the references in the applicable Standards and Accepted Practices.
• 3-A Sanitary Standards & Accepted Practices are copyrighted and cannot be
Contents
Disclaimer ... 2
Notes ... 2
01-08 Storage Tanks ... 7
02-11 Centrifugal and Positive Rotary Pumps... 8
04-05 Homogenizers and Reciprocating Pumps ... 8
05-15 Stainless Steel Automotive Transportation Tanks for Bulk Delivery and Farm Pick-Up Service ... 11
10-04 Filters Using Single Service Filter Media ... 12
11-09 Plate Type Heat Exchangers ... 12
12-07 Tubular Heat Exchangers ... 14
13-11 Farm Milk Cooling and Holding Tanks ... 15
16-05 Milk and Milk Products Evaporators and Vacuum Pans ... 16
17-11 Formers, Fillers, and Sealers of Containers for Fluid Milk and Fluid Milk Products ... 17
18-03 Multiple-Use Rubber and Rubber-Like Materials Used as Product Contact Surfaces in Dairy Equipment ... 18
19-07 Batch and Continuous Freezers for Ice Cream, Ices and Similarly Frozen Dairy Foods ... 19
20-27 Multiple-Use Plastic Materials ... 21
21-01 Centrifugal Separators and Clarifiers ... 22
22-08 Silo-Type Storage Tanks for Milk and Milk Products ... 23
23-06 Equipment for Packaging Viscous Product ... 24
24-03 Non-Coil Type Batch Pasteurizers for Milk and Milk Products ... 26
25-03 Non-Coil Type Batch Processors ... 27
26-05 Sifters for Dry Products ... 28
27-06 Equipment for Packaging Dry Milk and Dry Milk Products ... 29
28-04 Flow Meters for Milk and Milk Products ... 30
30-01 Farm Milk Storage Tanks ... 32
31-06 Scraped Surface Heat Exchangers ... 33
32-02 Uninsulated Tanks for Milk and Milk Products ... 33
33-02 Polished Metal Tubing for Milk and Milk Products ... 35
34-02 Portable Bins for Dry Milk and Dry Milk Products ... 35
35-04 Blending Equipment ... 36
36-01 Inline Rotor-Stator Mixers... 37
38-00 Cottage Cheese Vats ... 37
39-01 Pneumatic Conveyors for Dry Milk and Dry Milk Products ... 38
40-04 Bag Collectors ... 39
41-03 Mechanical Conveyors for Dry Products ... 41
42-01 In-Line Strainers for Milk and Milk Products, Number ... 41
44-03 Diaphragm Pumps ... 42
45-02 Crossflow Membrane Modules ... 43
46-03 Refractometers and Energy Absorbing Optical Sensors for Milk and Milk Products... 43
49-01 Air Driven Sonic Horns for Dry Products ... 44
50-01 Level Sensing Devices for Dry Products ... 45
51-01 Plug-Type Valves for Milk and Milk Products ... 45
52-02 Plastic Plug-Type Valves for Milk and Milk Products... 46
53-06 Compression-Type Valves ... 47
54-02 Diaphragm-Type Valves for Milk and Milk Products... 47
55-02 Boot Seal Type Valves ... 48
56-00 Inlet and Outlet Leak-Protector Plug-Type Valves for Milk and Milk Products .. 50
57-02 Disc-Type Valves ... 51
58-01 Vacuum Breakers and Check Valves for Milk and Milk Products ... 52
59-00 Automatic Positive Displacement Samplers for Fluid Milk and Fluid Milk Products... 53
60-00 Milk and Milk Products Rupture Discs ... 54
61-01 Steam Injection Heaters for Milk and Milk Products ... 54
63-03 Sanitary Fittings ... 57
64-00 Pressure Reducing and Back Pressure Regulating Valves for Milk and Milk Products... 58
65-01 Sight and/or Light Windows and Sight Indicators in Contact with Product ... 58
68-00 Ball-Type Valves for Milk and Milk Products ... 60
70-01 Italian-Type Pasta Filata Style Cheese Cookers ... 60
71-01 Italian-Type Pasta Filata Style Cheese Moulders ... 61
72-01 Italian-Type Pasta Filata Style Moulded Cheese Chillers ... 62
73-01 Shear Mixers, Mixers, and Agitators ... 63
74-05 Sensors and Sensor Fittings and Connections ... 64
75-01 Belt-Type Feeders... 66
78-01 Spray Cleaning Devices Intended to Remain in Place ... 68
81-00 Auger-Type Feeders ... 69
82-00 Pulsation Dampening Devices ... 70
83-00 Enclosed Cheese Vats and Tables ... 70
84-02 Personnel Access Ports for Wet Applications ... 71
85-02 Double-Seat Mixproof Valves ... 72
87-00 Mechanical Strainers ... 72
88-00 Machine Leveling Feet and Supports ... 73
95-00 Transportation Tank Vents ... 74
101-00 Pipeline Product Recovery Equipment ... 76
603-07 Sanitary Construction, Installation, Testing and Operation of High-Temperature Short-Time and Higher-Heat Shorter-Time Pasteurizer Systems ... 80
604-05 Supplying Air Under Pressure in Contact With Milk, Milk Products and Product Contact Surfaces ... 81
605-04 Permanently Installed Product and Solution Pipelines and Cleaning Systems Used in Milk and Milk Product Processing Plants ... 82
606-05 Design, Fabrication, and Installation of Milking and Milk Handling Equipment 83 607-05 Spray Drying Systems ... 84
608-02 Instantizing Systems ... 86
610-02 Sanitary Construction, Installation, and Cleaning of Cross Flow Membrane
Processing Systems ... 87
611-00 Farm Milk Cooling and Storage Systems ... 90
612-00 Plant Environmental Air Quality ... 91
E-600 Egg Breaking and Separating Machines ... 92
E-1500 Shell Egg Washers ... 93
P3-A-001 Pharmaceutical General Glossary ... 93
01-08 Storage Tanks
Title: 3-A® Sanitary Standards for Storage Tanks, Number 01-08
Date: Effective November 20, 2001.
Scope: A1 These standards cover the sanitary aspects of storage tanks for milk and milk products.
A2 In order to conform to these 3-A Sanitary Standards, storage tanks shall comply with the following design, material, and fabrication criteria.
References: 3-A Sanitary Standard for:
18- Multiple-Use Rubber and Rubber-Like Materials Used as Product Contact Surfaces in Dairy Equipment
20- Multiple-Use Plastic Materials
51- Plug-Type Valves for Milk and Milk Products
52- Plastic Plug-Type Valves for Milk and Milk Products 53- Compression-Type Valves
54- Diaphragm-Type Valves for Milk and Milk Products
56- Inlet and Outlet Leak-Protector Plug-Type Valves for Milk and Milk Products
57- Disc-Type Valves
58- Vacuum Breakers and Check Valves for Milk and Milk Products 59- Automatic Positive Displacement Samplers for Fluid Milk and
Fluid Milk Products 63- Sanitary Fittings
74- Sensors and Sensor Fittings and Connections 73- Shear Mixers, Mixers, and Agitators
65- Sight and/or Light Windows and Sight Indicators in Contact with Product
33- Polished Metal Tubing for Milk and Milk Products 85- Double-Seat Mixproof Valves
3-A Accepted Practice for:
604- Supplying Air Under Pressure in Contact With Milk, Milk Products and Product Contact Surfaces
02-11 Centrifugal and Positive Rotary Pumps
Title: 3-A® Sanitary Standards for Centrifugal and Positive Rotary Pumps, Number 02-11
Date: Effective July 14, 2012
Scope: A1 These standards cover the sanitary aspects of centrifugal and positive rotary pumps for milk and milk products.
A2 In order to conform to these 3 A Sanitary Standards, centrifugal and positive rotary pumps shall comply with the following design, materials, and fabrication criteria
References: 3-A Sanitary Standard for:
18- Multiple-Use Rubber and Rubber-Like Materials Used as Product Contact Surfaces in Dairy Equipment
20- Multiple-Use Plastic Materials 63- Sanitary Fittings
04-05 Homogenizers and Reciprocating Pumps
Title: 3-A® Sanitary Standards for Homogenizers and Reciprocating Pumps, Number 04-05
Date: Effective June 15, 2012
Scope: A1 This 3-A Sanitary Standard covers the sanitary aspects of homogenizers and reciprocating pumps, and their integral ancillary components, for milk, milk products and other liquid food products. Product enters the homogenizer or reciprocating pump at the product inlet and exits at the product outlet.
A2 This 3-A Sanitary Standard does not include drum-type pumps.
A3 In order to conform to this 3 A Sanitary Standard, homogenizers and reciprocating pumps shall conform to the following criteria for design, materials of construction, fabrication techniques and installation, as appropriate, and the current revisions or editions of all referenced documents cited herein.
References: 3-A Sanitary Standard for:
18- Multiple-Use Rubber and Rubber-Like Materials 20- Multiple-Use Plastic Materials
33- Metal Tubing 42- In-Line Strainers
53- Compression-Type Valves 63- Sanitary Fittings
74- Sensors and Sensor Fittings and Connections Used on Equipment 82- Pulsation Dampening Devices
88- Machine Leveling Feet and Supports
603- Sanitary Construction, Installation, Testing, and Operation of High-Temperature Short-Time and Higher-Heat Shorter-Time Pasteurizer Systems
604- Supplying Air Under Pressure in Contact with Product or Product Contact Surfaces
609- Method of Producing Steam of Culinary Quality
External References:
1. American Society of Mechanical Engineers (ASME) B46.1 Surface Texture Waviness and Lay. Available from the American Society of Mechanical Engineers, Three Park Ave., New York, NY 10016-5990, Phone: (212) 705-7722 or at http://www.asme.org
2. National Primary Drinking Water Regulation of the Environmental Protection Agency (EPA), The Code of Federal Regulations (CFR), Title 40, Parts 141, 142, and 143. For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402, Phone: (202) 512-1800 or the EPA web site at: http://water.epa.gov/drink/contaminants/index.cfm
3. Grade “A” Pasteurized Milk Ordinance, available from:
www.fda.gov/food/foodsafety/product-specificinformation/milksafety/default.htm
4. AWS/ANSI D18.1 – Specification for Welding of Austenitic Stainless Steel Tube and Pipe Systems in Sanitary (Hygienic) Applications.
AWS D18.2 – Guide to Weld Discoloration Levels on Inside of Austenitic Stainless Steel Tube (ANSI Approved)
AWS D18.3/D18.3M – Specification for Welding of Tanks, Vessels, and Other Equipment in Sanitary (Hygienic) Applications (ANSI Approved)
Published by American Welding Society, 550 N.W. LeJeune Rd., Miami FL, Phone: (800) 443-3953, www.aws.org
5. Advanced Materials and Processes, Volume 137(1), “Coatings and Coating Practices” by H. Herman, “Surface Modification” by F. A. Smidt. ASM International, Materials Park, OH 44073, Phone: (216) 338-5151, Internet http://asminternational.org
6. AMS-S-13165, Shot Peening of Metal Parts. SAE International, 400 Commonwealth Dr., Warrendale, PA 15096-0001, Internet:
http://www.sae.org
7. SAE AMS 2406, Chromium Plating (Electrodeposited). SAE-AMS QQ-N-290A, Nickel Plating (Electrodeposited). SAE International, 400 Commonwealth Dr., Warrendale, PA 15096-0001, Internet: http://www.sae.org
8. AIST Stainless Steels: A Steel Products Manual, Association for Iron & Steel Technology, 186 Thorn Hill Road, Warrendale, PA 15086, Phone: (724) 814 3000, Internet: www.aist.org
9. Steel Casting Handbook, Supplement 2, Steel Founders Society of America, 780 McArdle Dr., Unit G, Crystal Lake, IL 60014, Phone: (815) 455-8240, Fax: (815) 455-8241, Internet:
www.sfsa.org
10. MIL-C-26074E. Military Specification: Coatings, Electroless Nickel Requirements For. Standardization, Document Automation & Production Service (Department of Navy), 700 Robbins Avenue, Building 4, Section D, Philadelphia, PA 19111-5094, Phone: (215) 697-2179, Fax: (215) 697-1462.
11. The Code of Federal Regulations (CFR), Title 21, Parts 175 – Indirect Food Additives: Adhesives and Components of Coatings. For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402, Phone: (202) 512-1800, Internet: http://www.gpoaccess.gov/cfr/index.html
12. Machinery's Handbook, published by Industrial Press Inc., 200 Madison Avenue, New York, NY 10157, Phone: (888) 528-7852, Internet: http://new.industrialpress.com
13. Aerospace Standard (AS) 568, Aerospace Size Standards for O-rings, published by SAE, 400 Commonwealth Drive, Warrendale, PA 15086, Phone: (724)-776-4841, Internet: http://www.sae.org
14. ISO 3601-1:2002: Fluid Power Systems, Sealing Devices – O-Rings – Part 1: Inside diameters, cross-sections, tolerances and size identification code, The International Organization for
Standardization (ISO), 1 ch. de la VoieCreuse, Postale 56, CH -1211, Geneva 20, Switzerland, Phone: +41-22-749-01-11, Internet:
www.iso.org
15. ASTM specifications for Cast Grades A351/A351M, A743/A743M and A744/A744M. Available from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, Phone: (610) 832-9500. www.astm.org/standard/index.shtml
05-15 Stainless Steel Automotive Transportation Tanks
for Bulk Delivery and Farm Pick-Up Service
Title: 3-A® Sanitary Standards for Stainless Steel Automotive Transportation Tanks for Bulk Delivery and Farm Pick-Up Service, Number 05-15
Date: Effective November 24, 2002
Scope: A1 These standards cover the sanitary aspects of automotive transportation tanks for milk, fluid milk products, and other liquid comestible products.
A2 In order to conform to these 3-A Sanitary Standards, transportation tanks shall comply with the following design, material and fabrication criteria
References: 3-A Sanitary Standard for:
02- Centrifugal and Positive Rotary Pumps
18- Multiple-Use Rubber and Rubber-Like Materials Used as Product Contact Surfaces in Dairy Equipment
20- Multiple-Use Plastic Materials
33- Polished Metal Tubing for Milk and Milk Products 51- Plug-Type Valves for Milk and Milk Products 53- Compression-Type Valves
57- Disc-Type Valves
62- Hose Assemblies for Milk and Milk Products 63- Sanitary Fittings
68- Ball-Type Valves for Milk and Milk Products 74- Sensors and Sensor Fittings and Connections
3-A Accepted Practice for:
604- Supplying Air Under Pressure in Contact With Milk, Milk Products and Product Contact Surfaces
605- Permanently Installed Product and Solution Pipelines and Cleaning Systems Used in Milk and Milk Product Processing Plants
3-A Sanitary Standards referenced which have been discontinued
55- Boot Seal-Type Valves for Milk and Milk Products 66- Caged-Ball Valves for Milk and Milk Products
10-04 Filters Using Single Service Filter Media
Title: 3-A® Sanitary Standards for Filters Using Single Service Filter Media, Number 10-04
Date: Effective November 12, 2000
Scope: A1 These standards cover sanitary aspects of enclosed filtration equipment that uses single service filter media for filtering milk and milk products.
A2 In order to conform to these 3-A Sanitary Standards, filters shall comply with the following design, material, and fabrication criteria.
References: 3-A Sanitary Standard for:
18- Multiple-Use Rubber and Rubber-Like Materials Used as Product Contact Surfaces in Dairy Equipment
20- Multiple-Use Plastic Materials 63- Sanitary Fittings
11-09 Plate Type Heat Exchangers
Title: 3-A® Sanitary Standards for Plate Type Heat Exchangers, Number 11-08
Date: Effective: August 1, 2010
Scope: A1. This standard covers the sanitary aspects of plate type heat exchangers beginning with the inlet fittings for product(s) and for heat exchange media and ending with the outlet fittings for product(s) and for heat exchange media. This standard include the frame and/or support components for holding the heat exchange plates and the means for manual or mechanical opening and closing of the plate pack assembly.
A2 In order to conform to this 3-A Sanitary Standard, plate heat exchangers shall conform to the following criteria for design,
materials of construction, fabrication techniques and installation, as appropriate, and the current revisions or editions of all referenced documents cited herein in Section B.
References: 3-A Sanitary Standard for:
18- Multiple-Use Rubber and Rubber-like Materials 20- Multiple-Use Plastic Materials
63- Sanitary Fittings 33- Metal Tubing
88- Machine Leveling Feet and Supports
External References:
1. AIST Steel Products Manual, Stainless & Heat Resisting Steels, Table 2-1. Association for Iron & Steel Technology (AIST), 410 Commonwealth Drive, Warrendale, PA 15086, Phone: (412) 776-1535. www.AIST.org
2. Steel Casting Handbook, Supplement 2, 1999. Available from Steel Founders Society of America, 780 McArdle Dr., Unit G, Crystal Lake, IL 60014, Phone: (815) 8240, Fax: (815) 455-8241, www.sfsa.org.
3. MIL-C-26074E. Military Specification: Coatings, Electroless Nickel Requirements For. Standardization, Document Automation & Production Service (Department of Navy), 700 Robbins Avenue, Building 4, Section D, Philadelphia, PA 19111-5094, Phone: (215)697-2179, Fax: (215) 697-1462.
4. ASTM specifications for Cast Grades A351/A351M, A743/A743M and A744/A744M. Available from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-1959, Phone: (610) 832-9500. www.astm.org/standard/index.shtml
5. ASTM specifications for Wrought Grades A276, A582, and A666. Available from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, Phone: (610) 832-9500.
www.astm.org/standard/index.shtml
6. (ANSI)/American Society of Mechanical Engineers (ASME) B46.1 – Surface Texture Waviness and Lay. Available from the American Society of Mechanical Engineers, 345 East 47th Street, New York, NY 10017-2392, Phone: (212) 705-7722.
7. EHEDG Doc. 35 – Welding of Stainless Steel Tubing in the Food Industry. European Hygienic Engineering & Design Group. Published by EHEDG. www.ehedg.org
8. The Code of Federal Regulations (CFR), Title 21, Parts 175 – Indirect Food Additives: Adhesives and Components of Coatings.
For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402, Phone: (202) 512-1800 or at http://gpoacess.gov/cfr/index.html.
9. GAR C-9 Cast Microfinish Comparator. Available from Gar Electroforming Division, Electroformers Inc., 11 Augusta Drive, Commerce Park, PO Box 340, Danbury, CT 06813-0340, Phone: (203) 744-4300.
10. Advanced Materials and Processes, Volume 137(1), “Coatings and Coating Practices” by H. Herman, “Surface Modification” by F. A. Smidt. ASM International, Materials Park, OH 44073, Phone: (216) 338-5151.
12-07 Tubular Heat Exchangers
Title: 3-A® Sanitary Standards for Tubular Heat Exchangers, Number 12-07
Date: Adopted November 16, 2003
Scope: A1 These standards cover the sanitary aspects of tubular heat exchangers without agitators. Tubular heat exchangers may have tube cross-sectional profile modifications or removable devices for promotion of desired flow characteristics. The standards do not cover high-pressure (greater than 250 psig or 1724 kPa product pressure) tubular heat exchangers which require special tubing and/or fittings.
A2 In order to conform to these 3-A Sanitary Standards, tubular heat exchangers shall conform to the following design, material, and fabrication criteria.
References: 3-A Sanitary Standard for:
18- Multiple-Use Rubber and Rubber-Like Materials Used as Product Contact Surfaces in Dairy Equipment
20- Multiple-Use Plastic Materials 63- Sanitary Fittings
33- Polished Metal Tubing for Milk and Milk Products 74- Sensors and Sensor Fittings and Connections
3-A Accepted Practice for:
604- Supplying Air Under Pressure in Contact With Milk, Milk Products and Product Contact Surfaces
Systems Used in Milk and Milk Product Processing Plants
13-11 Farm Milk Cooling and Holding Tanks
Title: 3-A® Sanitary Standards for Farm Milk Cooling and Holding Tanks, Number 13-11
Date: Effective: July 23, 2012
Scope: A1 This standard covers the sanitary aspects of tanks in which bulk milk is cooled and stored on dairy farms.
A2 Tanks made in conformance to these standards shall provide a means for cooling the milk.
A3 The milk tank will consist of the following components: Lining, jacket and rail, personnel access openings and covers, outlet valve, vent, agitation, refrigeration, measuring device and internal
solution piping.
A3.1 Other components may include: external solution piping, cleaning controls, temperature indication thermometer, recording
thermometer, and weather protective cover and sanitary seals for agitator.
A4 In order to conform to these 3-A Sanitary Standards, farm milk cooling and holding tanks shall conform to the following design, material, fabrication, and cooling criteria.
References: 3-A Sanitary Standard for:
18- Multiple-Use Rubber and Rubber-Like Materials Used as Product Contact Surfaces in Dairy Equipment
20- Multiple-Use Plastic Materials
33- Polished Metal Tubing for Milk and Milk Products 57- Disc-Type Valves
78- Spray Cleaning Devices Intended to Remain in Place 73- Shear Mixers, Mixers and Agitators
74- Sensors and Sensor Fittings and Connections
65- Sight and/or Light Windows and Sight Indicators in Contact with Product
3-A Accepted Practice for:
604- Supplying Air Under Pressure in Contact With Milk, Milk Products and Product Contact Surfaces
16-05 Milk and Milk Products Evaporators and Vacuum
Pans
Title: 3-A® Sanitary Standards for Milk and Milk Products Evaporators and Vacuum Pans, Number 16-05
Date: Reaffirmed August 24, 1997
Scope: A1 These standards cover the sanitary aspects of evaporators and vacuum pans used for milk and milk products.
A2 In order to conform to these 3-A Sanitary Standards, evaporators and vacuum pans shall comply with the following design, material, and fabrication criteria.
References: 3-A Sanitary Standard for:
18- Multiple-Use Rubber and Rubber-Like Materials Used as Product Contact Surfaces in Dairy Equipment
20- Multiple-Use Plastic Materials 11- Plate Type Heat Exchangers 12- Tubular Heat Exchangers
31- Scraped Surface Heat Exchangers
33- Polished Metal Tubing for Milk and Milk Products 51- Plug-Type Valves for Milk and Milk Products
52- Plastic Plug-Type Valves for Milk and Milk Products 63- Sanitary Fittings
58- Vacuum Breakers and Check Valves for Milk and Milk Products 74- Sensors and Sensor Fittings and Connections
68- Ball-Type Valves for Milk and Milk Products
59- Automatic Positive Displacement Samplers for Fluid Milk and Fluid Milk Products
3-A Accepted Practice for:
605- Permanently Installed Product and Solution Pipelines and Cleaning Systems Used in Milk and Milk Product Processing Plants
603- Sanitary Construction, Installation, Testing, and Operation of High-Temperature Short-Time and Higher-Heat Shorter-Time Pasteurizer Systems
3-A Sanitary Standards referenced which have been discontinued
17-11 Formers, Fillers, and Sealers of Containers for
Fluid Milk and Fluid Milk Products
Title: 3-A® Sanitary Standards for Formers, Fillers, and Sealers of Containers for Fluid Milk and Fluid Milk Products, Number 17-11
Date: Effective November 19, 2012
Scope: A1 These standards cover the sanitary aspects of unitized equipment for forming, filling, and sealing containers for fluid milk and fluid milk products. The equipment shall perform one or more of the following functions: 1) forming the container, 2) applying and sealing a supplementary fitment or device, 3) filling the container and 4) sealing, including capping if part of the unitized equipment, the container. The equipment shall start at the points where the product, utilities (air, water, steam, cleaning chemicals, etc.), container, container blank, or container material first enters the unitized equipment. The equipment shall end where the formed, filled, and/or sealed container exits the equipment.
A2 These standards do not pertain to the container, to free-standing container forming equipment or to other equipment such as labelers, printers, daters, cappers, applicators of supplementary fitments or devices or wrappers not furnished as part of the
unitized equipment, nor shall it apply to fillers of viscous products, such as frozen desserts, cottage cheese, cultured yogurt, sour cream, whipped butter, cream cheese, and other similar viscous dairy products.
A3 In order to conform to these 3-A Sanitary Standards, formers, fillers, and sealers of containers shall comply with the following design, material, and fabrication criteria.
References: 3-A Sanitary Standard for:
18- Multiple-Use Rubber and Rubber-Like Materials Used as Product Contact Surfaces in Dairy Equipment
20- Multiple-Use Plastic Materials
28- Flow Meters for Milk and Milk Products
33- Polished Metal Tubing for Milk and Milk Products 02- Centrifugal and Positive Rotary Pumps
04- Homogenizers and Reciprocating Pumps 44- Diaphragm Pumps
51- Plug-Type Valves for Milk and Milk Products
53- Compression-Type Valves
54- Diaphragm-Type Valves for Milk and Milk Products
59- Automatic Positive Displacement Samplers for Fluid Milk and Fluid Milk Products
60- Milk and Milk Products Rupture Discs 74- Sensors and Sensor Fittings and Connections
64- Pressure Reducing and Back Pressure Regulating Valves for Milk and Milk Products
65- Sight and/or Light Windows and Sight Indicators in Contact with Product
62- Hose Assemblies for Milk and Milk Products 63- Sanitary Fittings
3-A Accepted Practice for:
604- Supplying Air Under Pressure in Contact With Milk, Milk Products and Product Contact Surfaces
609- A Method of Producing Culinary Steam
3-A Sanitary Standards referenced which have been discontinued
55- Boot Seal-Type Valves for Milk and Milk Products
18-03 Multiple-Use Rubber and Rubber-Like Materials
Used as Product Contact Surfaces in Dairy Equipment
Title: 3-A® Sanitary Standards for Multiple-Use Rubber and Rubber-Like Materials Used as Product Contact Surfaces in Dairy Equipment, Number 18-03
Date: Effective August 21, 1999
Scope: A1 These sanitary standards cover the material and serviceability requirements of rubber and rubber-like materials intended for multiple-use as product contact surfaces or solution contact surfaces in the production, processing and handling of milk or milk products. Test procedures and criteria are also provided for rubber and rubber-like materials as a means of determining their acceptance as to their ability to be cleaned and to receive effective bactericidal treatment or steam sterilization and to maintain their essential properties in these accelerated use-simulating conditions . These standards are not meant to cover design and fabrication criteria for individual rubber or rubber-like components because such criteria are provided for in other 3-A Sanitary Standards and
3-A Accepted Practices, nor are these standards intended to cover RTV silicone adhesives or sealants.
A2 In order to conform with these 3-A Standards, multiple-use rubber and rubber-like materials shall comply with the following material, original physical properties and serviceability requirements.
References: 3-A Sanitary Standard for:
19-07 Batch and Continuous Freezers for Ice Cream,
Ices and Similarly Frozen Dairy Foods
Title: 3-A® Sanitary Standards for Batch and Continuous Freezers for Ice Cream, Ices and Similarly Frozen Dairy Foods, Number 19-07
Date: Effective December 1, 2008
Scope: A1 These standards cover the sanitary aspects of batch and continuous freezers for ice cream, sherbets, sorbets, ices, and other similarly-frozen foods and equipment integral therewith, including pumps, equipment for incorporating air or introducing flavoring material into the product and mix supply tanks attached to and made as a part of the freezer. These standards do not cover equipment designed for the freezing of soft-serve type ice cream, ices, and similarly-frozen products which are served to the consumer without further hardening.
A2 In order to conform to these 3-A Sanitary Standards, batch and continuous freezers for ice cream, sherbets, sorbets, ices, and other similarly frozen foods shall conform to the following design, material, fabrication criteria and the applicable documents referenced herein.
References: 3-A Sanitary Standard for:
02- Centrifugal and Positive Rotary Pumps 04- Homogenizers and Reciprocating Pumps
18- Multiple-Use Rubber and Rubber-Like Materials 20- Multiple-Use Plastic Materials
28- Flow Meters
33- Polished Metal Tubing
58- Vacuum Breakers and Check Valves 63- Sanitary Fittings
74- Sensors and Sensor Fittings and Connections Used on Equipment 88- Machine Leveling Feet and Supports
3-A Accepted Practice for:
604- Supplying Air Under Pressure in Contact With Milk, Milk Products and Product Contact Surfaces
External References:
1. Advanced Materials and Processes, Volume 137(1), “Coatings and Coating Practices” by H. Herman, “Surface Modification” by F. A. Smidt, p. 61. ASM International, Materials Park, OH 44073 (216) 338-5151.
2. AMS-S-13165, Shot Peening of Metal Parts. Society of
Automotive Engineers (AWS), Commonwealth Dr., Warrendale PA 15096-0001.
3. SAE-AMS-QQ-C-320, Chromium Plating (Electrodeposited). SAE-AMS QQ-N-290A, Nickel Plating (Electrodeposited). Society of Automotive Engineers (AWS), 400 Commonwealth Dr.,
Warrendale, PA 15096- 0001.
4. AISI Steel Products Manual, Stainless & Heat Resisting Steels, November 1990, Table 2-1, pp. 17-20. Available from the American Iron and Steel Society, 410 Commonwealth Drive, Warrendale, PA 15086 (412-776-1535).
5. Steel Founders Society of America, 780 McArdle Dr., Unit G, Crystal Lake, IL 60014, Phone: (815) 8240, Fax: (815) 455-8241, Internet: www.sfsa.org .
6. ASTM specifications for Cast Grades A351/A351M, A743/A743M and A744/A744M. Available from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, Phone: (610) 832-9500.
7. ASTM specifications for Wrought Grades 276, 582, and A-666. Available from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, Phone: (610) 832-9500.
8. (ANSI)/American Society of Mechanical Engineers (ASME) B46.1 – Surface Texture. Available from ASME, 345 East 47th Street, New York, NY 10017-2392 (212-705-7722).
9. The Code of Federal Regulations (CFR), Title 21, Parts 175 – Indirect Food Additives: Adhesives and Components of Coatings. For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402, (202) 512-1800.
10. ASHRAE test 52.2-1999 method of testing general ventilation air-cleaning devices for removal efficiency by particle size. Available from American Society of Heating, Refrigeration and Air
Conditioning Engineers, 1791 Tullie Circle, N.E., Atlanta, GA 30329 Phone: 404-636-8400.
11. ISO 14644-1 designating standard classes of air particulate cleanliness and specifies methods for verifying air cleanliness classifications. Available from The International Organization for Standardization (ISO), 1 Rue de Varembe, Case Postale 58, CH 1 1211, Geneva, Switzerland, Phone: +41-22-734-1240.
12. Machinery's Handbook, published by Industrial Press Inc., 200 Madison Avenue, New York, NY 10157, Phone: (888) 528-7852.
13. Aerospace Standard (AS) 568, Aerospace Size Standards for O-rings, published by SAE, 400 Commonwealth Drive, Warrendale, PA 15086. Phone: (412) 776-4970.
14. AWS/ANSI D18.1 – Specification for Welding of Austenitic Stainless Steel Tube and Pipe Systems in Sanitary (Hygienic) Applications. Published by American Welding Society, 550 N.W. LeJeune Rd., Miami FL, Phone: (800) 443-3953, www.aws.org.
15. EHEDG Doc. 9 – Welding Stainless Steel to Meet Hygienic Requirements. European Hygienic Engineering & Design Group. Published by EHEDG, www.ehedg.org
16. ISO 3601-1: The International Organization for Standardization (ISO), 1 Rue de Varembe, Case Postale 58, CH 1 1211, Geneva, Switzerland. Phone: +41-22-734-1240.
20-27 Multiple-Use Plastic Materials
Title: 3-A® Sanitary Standards for Multiple-Use Plastic Materials, Number 20-27
Date: Effective: July 7, 2011
Scope: A1 These sanitary standards cover the material requirements of plastics for multiple-use as product contact and/or cleaning solution contact surfaces in equipment for production, processing, and handling of milk and milk product(s). Test criteria are provided for plastics as a means of determining their acceptance as
to their ability to be cleaned and to receive effective bactericidal treatment and to maintain their essential functional properties and surface finish in accelerated use-simulating tests . These standards do not apply to plastics for single service application nor plastics which are of rubber or rubber-like origin resulting from chemical or thermal vulcanization or curing. These standards are also not meant to cover design and fabrication criteria for individual plastic components, because such criteria are provided for in other 3-A Sanitary Standards and 3-A Accepted Practices.
A2 In order to conform to these 3-A Sanitary Standards, multiple-use plastics shall comply with the following material, fabrication of test specimens as described in Section D3 herein, and cleanability standards.
References: 3-A Sanitary Standard for:
18- Multiple-Use Rubber and Rubber-Like Materials Used as Product Contact Surfaces in Dairy Equipment
21-01 Centrifugal Separators and Clarifiers
Title: 3-A® Sanitary Standards for Centrifugal Separators and Clarifiers, Number 21-01
Date: Effective: November 13, 2006
Scope: A1 These Standards cover the sanitary aspects of centrifugal separators or clarifiers used to separate fractions of milk or milk products or other liquid food products or to centrifugally remove dense phase material from products. This machine starts at the product inlet(s) and terminates at the product outlet(s) and the nonproduct discharge(s), if included.
These Standards do not cover cyclonic types of separators, decanters, basket centrifuges and other types of devices and the spacers (caulks) for separator or clarifier discs and their attachment to the discs. (See Appendix M.)
A2 In order to conform to these 3-A Sanitary Standards, centrifugal separators or clarifiers shall comply with the following design, material, and fabrication criteria and the applicable documents referenced herein.
18- Multiple-Use Rubber and Rubber-Like Materials Used as Product Contact Surfaces in Dairy Equipment
20- Multiple-Use Plastic Materials
33- Polished Metal Tubing for Milk and Milk Products 63- Sanitary Fittings
74- Sensors and Sensor Fittings and Connections
65- Sight and/or Light Windows and Sight Indicators in Contact with Product
3-A Accepted Practice for:
605- Permanently Installed Product and Solution Pipelines and Cleaning Systems Used in Milk and Milk Product Processing Plants
22-08 Silo-Type Storage Tanks for Milk and Milk
Products
Title: 3-A® Sanitary Standards for Silo-Type Storage Tanks for Milk and Milk Products, Number 22-08
Date: Adopted: November 21, 2004
Scope: A1 These standards cover the sanitary aspects of silo-type storage tanks for milk and milk products used at dairy processing plants. These standards are not intended to cover silo-type tanks used on dairy farms.
A2 In order to conform to these 3-A Sanitary Standards, silo-type storage tanks shall conform to the following design, material, fabrication and refrigeration criteria
References: 3-A Sanitary Standard for:
18- Multiple-Use Rubber and Rubber-Like Materials Used as Product Contact Surfaces in Dairy Equipment
20- Multiple-Use Plastic Materials
33- Polished Metal Tubing for Milk and Milk Products 73- Shear Mixers, Mixers, and Agitators
74- Sensors and Sensor Fittings and Connections
56- Inlet and Outlet Leak-Protector Plug-Type Valves for Milk and Milk Products
57- Disc-Type Valves
60- Milk and Milk Products Rupture Discs 63- Sanitary Fittings
52- Plastic Plug-Type Valves for Milk and Milk Products 53- Compression-Type Valves
54- Diaphragm-Type Valves for Milk and Milk Products
3-A Accepted Practice for:
604- Supplying Air Under Pressure in Contact With Milk, Milk Products and Product Contact Surfaces
605- Permanently Installed Product and Solution Pipelines and Cleaning Systems Used in Milk and Milk Product Processing Plants
3-A Sanitary Standards referenced which have been discontinued
55- Boot Seal-Type Valves for Milk and Milk Products
23-06 Equipment for Packaging Viscous Product
Title: 3-A® Sanitary Standards for Equipment for Packaging Viscous Products, Number 23-06
Date: Effective: November 19, 2012
Scope: A1 These standards cover the sanitary aspects of unitized equipment for holding, opening, forming, dispensing, filling, closing, sealing, or capping containers for viscous products, or wrapping viscous products, and all parts essential to these functions. The equipment shall perform one or more of the following functions:
1. Holding the container preparatory to further processing 2. Opening the container
3. Forming the container
4. Dispensing a preformed container
5. Applying and sealing a supplementary fitment 6. Other processing equipment, as defined herein 7. Filling the container
8. Closing the container 9. Sealing the container 10. Capping the container 11. Wrapping the container
12. Applying a tamper-evident security seal.
The equipment shall start at the point(s) where the product, container, container blank, container material or wrapping material first enters the equipment. The equipment shall end where the packaged product exits the unitized equipment.
container forming equipment or to other equipment such as labelers, printers, daters, cappers, applicators of supplementary fitments or devices or wrappers not furnished as part of the unitized equipment, nor shall it apply to fillers of nonviscous products.
A3 In order to conform to these 3-A Sanitary Standards, equipment for packaging viscous products shall conform to the following design, material, and fabrication criteria and the applicable documents referenced herein.
References: 3-A Sanitary Standard for:
18- Multiple-Use Rubber and Rubber-Like Materials Used as Product Contact Surfaces in Dairy Equipment
20- Multiple-Use Plastic Materials
33- Polished Metal Tubing for Milk and Milk Products
65- Sight and/or Light Windows and Sight Indicators in Contact with Product
60- Milk and Milk Products Rupture Discs 63- Sanitary Fittings
51- Plug-Type Valves for Milk and Milk Products 53- Compression-Type Valves
54- Diaphragm-Type Valves for Milk and Milk Products 02- Centrifugal and Positive Rotary Pumps
04- Homogenizers and Reciprocating Pumps 28- Flow Meters for Milk and Milk Products
46- Refractometers and Energy Absorbing Optical Sensors for Milk and Milk Products
58- Vacuum Breakers and Check Valves for Milk and Milk Products 68- Ball-Type Valves for Milk and Milk Products
74- Sensors and Sensor Fittings and Connections
52- Plastic Plug-Type Valves for Milk and Milk Products 62- Hose Assemblies for Milk and Milk Products
3-A Accepted Practice for:
604- Supplying Air Under Pressure in Contact With Milk, Milk Products and Product Contact Surfaces
605- Permanently Installed Product and Solution Pipelines and Cleaning Systems Used in Milk and Milk Product Processing Plants
609- A Method of Producing Culinary Steam
3-A Sanitary Standards referenced which have been discontinued
24-03 Non-Coil Type Batch Pasteurizers for Milk and Milk
Products
Title: 3-A® Sanitary Standards for Non-Coil Type Batch Pasteurizers for Milk and Milk Products, Number 24-03
Date: Effective July 16, 2010
Scope: A1 This standard covers the sanitary aspect of non-coil type batch pasteurizers used to pasteurize milk, fluid milk products, or other fluid food products and includes those appurtenances necessary to meet pasteurization requirements. This Standard shall be deemed inclusive of the points where the product enters and exits the noncoil type batch pasteurizer.
A2 In order to conform to this 3-A Sanitary Standard, non-coil type batch pasteurizers shall conform to the following criteria for design, materials of construction, fabrication techniques and installation, as appropriate, and the current revisions or editions of all referenced documents cited herein.
References: 3-A Sanitary Standard for:
18- Multiple-Use Rubber and Rubber-Like Materials 20- Multiple-Use Plastic Materials
33- Polished Metal Tubing
56- Inlet and Outlet Leak-Protector Plug-Type Valves 63- Sanitary Fittings
65- Sight and/or Light Windows and Sight Indicators 73- Shear Mixers, Mixers and Agitators
74- Sensors and Sensor Fittings and Connections Used on Equipment 78- Spray Devices to Remain in Place
84- Personnel Access Port for Wet Applications 88- Machine Leveling Feet and Supports
3-A Accepted Practice for:
604- Supplying Air Under Pressure in Contact with Product, and Product Contact Surfaces
609- Accepted Practice for Culinary Steam
External References:
1. AIST Steel Products Manual, Stainless & Heat Resisting Steels, Table 2-1. Association for Iron & Steel Technology (AIST), 410 Commonwealth Drive, Warrendale, PA 15086, Phone: (412) 776-1535. www.AIST.org
Crystal Lake, IL
60014, Phone: (815) 455-8240, Fax: (815) 455-8241, Internet: www.sfsa.org
3. ASTM specifications for Cast Grades A351/A351M, A743/A743M and A744/A744M. Available from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, Phone: (610) 832-9500.
4. AWS/ANSI D18.1 – Specification for Welding of Austenitic Stainless Steel Tubeand Pipe Systems in Sanitary (Hygienic) Applications.
AWS D18.2 – Guide to Weld Discoloration Levels on Inside of
Austenitic Stainless Steel Tube (ANSI Approved)
AWS D18.3/D18.3M - Specification for Welding of Tanks, Vessels,
and Other Equipment in Sanitary (Hygienic) Applications (ANSI Approved) Published by American Welding Society, 550 N.W. LeJeune Rd., Miami FL, Phone: (800) 443-3953, www.aws.org.
5. EHEDG Doc. 9 – Welding Stainless Steel to Meet Hygienic Requirements. European Hygienic Engineering & Design Group. Published by EHEDG, www.ehedg.org
6. Grade “A” Pasteurized Milk Ordinance,
http://www.cfsan.fda.gov/~ear/pmo03toc.html.
7. The Code of Federal Regulations (CFR), Title 21, Parts 175 – Indirect Food Additives: Adhesives and Components of Coatings. For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402, Phone: (202) 512-1800 or at http://www.gpoaccess.gov/cfr/index.html.
8. Aerospace Standard (AS) 568, Aerospace Size Standards for O-rings, published by SAE, 400 Commonwealth Drive, Warrendale, PA 15086, Phone: (724)-776-4841.
9. ISO 3601-1: The International Organization for Standardization (ISO), 1 Rue de Varembe, Case Postale 58, CH 1 1211, Geneva, Switzerland, Phone: +41-22-734-1240.
25-03 Non-Coil Type Batch Processors
Title: 3-A® Sanitary Standards for Non-Coil Type Batch Processors, Number 25-03
Date: Effective November 24, 2002
Scope: A1 These standards cover sanitary aspects of non-coil type batch processors used to heat, cool, or process milk, fluid milk products, or other fluid comestibles. Batch processors may be either of the atmospheric or closed type. The latter may be operated at pressures from below to above that of the atmosphere.
A2 In order to conform to these 3-A Sanitary Standards, non-coil type batch processors shall conform to the following design, material, and fabrication criteria.
References: 3-A Sanitary Standard for:
18- Multiple-Use Rubber and Rubber-Like Materials Used as Product Contact Surfaces in Dairy Equipment
20- Multiple-Use Plastic Materials
33- Polished Metal Tubing for Milk and Milk Products 78- Spray Cleaning Devices Intended to Remain in Place 60- Milk and Milk Products Rupture Discs
63- Sanitary Fittings
65- Sight and/or Light Windows and Sight Indicators in Contact with Product
73- Shear Mixers, Mixers, and Agitators
51- Plug-Type Valves for Milk and Milk Products
52- Plastic Plug-Type Valves for Milk and Milk Products 53- Compression-Type Valves
54- Diaphragm-Type Valves for Milk and Milk Products
56- Inlet and Outlet Leak-Protector Plug-Type Valves for Milk and Milk Products
57- Disc-Type Valves
58- Vacuum Breakers and Check Valves for Milk and Milk Products 74- Sensors and Sensor Fittings and Connections
3-A Sanitary Standards referenced which have been discontinued
55- Boot Seal-Type Valves for Milk and Milk Products
26-05 Sifters for Dry Products
Title: 3-A® Sanitary Standards for Sifters for Dry Products, Number 26-05
Date: Effective: April 26, 2007
Scope: A1 These standards cover the sanitary aspects of sifters used for processing dry products beginning at, as appropriate, the inlets for
products, cleaning solutions, processing air and terminating at the outlets for product, processing air, cleaning solutions or rejected material.
A2 In order to conform to these 3 A Sanitary Standards, sifting equipment shall comply with the following design, material, and fabrication criteria.
References: 3-A Sanitary Standard for:
18- Multiple-Use Rubber and Rubber-Like Materials Used as Product Contact Surfaces in Dairy Equipment
20- Multiple-Use Plastic Materials
65- Sight and/or Light Windows and Sight Indicators in Contact with Product
62- Hose Assemblies for Milk and Milk Products 63- Sanitary Fittings
27-06 Equipment for Packaging Dry Milk and Dry Milk
Products
Title: 3-A® Sanitary Standards for Equipment for Packaging Dry Milk and Dry Milk Products, Number 27-06
Date: Effective May 7, 2010
Scope: A1 These standards cover the sanitary aspects of equipment for performing the functions of holding, forming, dispensing, filling, weighing, deaerating, closing, and/or sealing containers, and all parts which are essential to these functions when they are performed as an integral part of the packaging operation. These standards do not pertain to the container nor to a duct(s) which is not a part of the packaging equipment.
A2 In order to conform to these 3-A Sanitary Standards, equipment for packaging dry milk and dry milk products shall conform to the following design, material, and fabrication criteria and the applicable documents referenced herein.
References: 3-A Sanitary Standard for:
18- Multiple-Use Rubber and Rubber-Like Materials Used as Product Contact Surfaces in Dairy Equipment
63- Sanitary Fittings
3-A Accepted Practice for:
604- Supplying Air Under Pressure in Contact With Milk, Milk Products and Product Contact Surfaces
28-04 Flow Meters for Milk and Milk Products
Title: 3-A® Sanitary Standards for Flow Meters for Milk and Milk Products, Number 28-04
Date: Effective January 26, 2009
Scope: A1 These standards cover the sanitary aspects of flow meters for milk and milk products and include that portion of any device integral with the meter such as strainers, temperature sensors and density sensors, which is in contact with the flowing product. It does not pertain to meters designed to measure the milk from an individual milking animal.
A2 In order to conform to these 3 A Sanitary Standards, flow meters shall comply with the following design, material, and fabrication criteria
References: 3-A Sanitary Standard for:
18- Multiple-Use Rubber and Rubber-Like Materials Used as Product Contact Surfaces in Dairy Equipment
20- Multiple-Use Plastic Materials 63- Sanitary Fittings
33- Polished Metal Tubing for Milk and Milk Products
29-03 Air Eliminators
Title: 3-A® Sanitary Standards for Air Eliminators, Number 29-03
Date: Effective August 22, 2011
Scope: A1 This 3-A Sanitary Standard covers the sanitary aspects of air eliminators that vent air removed from product directly to the atmosphere and does not apply to devices using vacuum to remove air. Product and air enter the air eliminator at the inlet connection,
product exits at the outlet connection and air exits at the air vent.
A2 In order to conform to this 3-A Sanitary Standard, air eliminators shall conform to the following criteria for design, materials of construction, fabrication techniques and installation, as appropriate, and the current revisions or editions of all referenced documents cited herein.
References: 3-A Sanitary Standard for:
18- Multiple-Use Rubber and Rubber-like Materials 20- Multiple-Use Plastic Materials
33- Metal Tubing
58- Vacuum Breakers and Check Valves 63- Sanitary Fittings
65- Sight and/or Light Windows and Sight Indicators in Contact with Product
74- Sensors and Sensor Fittings and Connections Used on Equipment 78- Spray Cleaning Devices Intended to Remain in Place
88- Machine Leveling Feet and Supports
External References:
1. (ANSI)/American Society of Mechanical Engineers (ASME) B46.1 - Surface Texture Waviness and Lay. Available from the American Society of Mechanical Engineers, 345 East 47th Street, New York, NY 10017-2392, Phone: (212) 705-7722. http://webstore.ansi.org
2. AIST Steel Products Manual, Stainless & Heat Resisting Steels, Table 2-1. Association for Iron & Steel Technology (AIST), 410 Commonwealth Drive, Warrendale, PA 15086, Phone: (412) 776-1535. www.AIST.org
3. Steel Casting Handbook, Supplement 2, 1999, Steel Founders Society of America, 780 McArdle Dr., Unit G, Crystal Lake, IL 60014, Phone: (815) 455-8240, Fax: (815) 455-8241, Internet:
www.sfsa.org
4. The Code of Federal Regulations (CFR), Title 21, Parts 175 – Indirect Food Additives: Adhesives and Components of Coatings. For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402, Phone: (202) 512-1800 or at http://www.gpoaccess.gov/cfr/index.html
5. AWS/ANSI D18.1 – Specification for Welding of Austenitic Stainless Steel Tube and Pipe Systems in Sanitary (Hygienic) Applications. Published by American Welding Society, 550 N.W. LeJeune Rd., Miami FL, Phone: (800) 443-3953, www.aws.org
6. EHEDG Doc. 9 – Welding Stainless Steel to Meet Hygienic Requirements. European Hygienic Engineering & Design Group. Published by EHEDG, www.ehedg.org
7. Aerospace Standard (AS) 568, published by SAE, 400
Commonwealth Drive, Warrendale, PA 15086, Phone: (412) 776-4970.
8. ISO 3601-1:2002: Fluid Power Systems, Sealing Devices –
O-Rings – Part 1: Inside diameters, cross-sections, tolerances and size identification code, The International Organization for
Standardization (ISO), 1 ch. de la VoieCreuse, Postale 56, CH -1211, Geneva 20, Switzerland, Phone: +41-22-749-01-11.
www.iso.org
9. ASTM specifications for Cast Grades A351/A351M, A743/A743M and A744/A744M. Available from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, Phone: (610) 832-9500.
www.astm.org/standard/index.shtml
10. ASTM specifications for Wrought Grades 276, 582, and A-666. Available from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, Phone: (610) 832-9500.
www.astm.org/standard/index.shtml
30-01 Farm Milk Storage Tanks
Title: 3-A® Sanitary Standards for Farm Milk Storage Tanks, Number 30-01
Date: Effective September 9, 1984
Scope: A1 These standards cover the sanitary aspects of tanks in which bulk milk is stored on dairy farms. They do not pertain to storage tanks nor to silo type tanks for milk and milk products used in dairy processing plants nor do they pertain to farm milk cooling and holding tanks.
A2 Tanks made in conformance to these standards will prevent a significant increase in the temperature of the milk stored in the tank by the insulation or by the combination of the insulation and refrigeration. These tanks will not provide the means for cooling the milk.
A3 In order to conform with these 3-A Sanitary Standards, farm milk storage tanks shall comply with the following design, material and
fabrication criteria.
References: 3-A Sanitary Standard for:
18- Multiple-Use Rubber and Rubber-Like Materials Used as Product Contact Surfaces in Dairy Equipment
20- Multiple-Use Plastic Materials 63- Sanitary Fittings
74- Sensors and Sensor Fittings and Connections
3-A Accepted Practice for:
604- Supplying Air Under Pressure in Contact With Milk, Milk Products and Product Contact Surfaces
31-06 Scraped Surface Heat Exchangers
Title: 3-A® Sanitary Standards for Scraped Surface Heat Exchangers, Number 31-06
Date: Effective: September 24, 2010
Scope: A1 These standards cover the sanitary aspects of scraped surface heat exchangers for adding heat to, or removing heat from products. These standards do not pertain to freezers for ice cream, ices and similarly frozen dairy foods nor to batch processors.
A2 In order to conform to these 3-A Sanitary Standards, scraped surface heat exchangers shall conform to the following design, material and fabrication criteria
References: 3-A Sanitary Standard for:
18- Multiple-Use Rubber and Rubber-Like Materials Used as Product Contact Surfaces in Dairy Equipment
20- Multiple-Use Plastic Materials 63- Sanitary Fittings
33- Polished Metal Tubing for Milk and Milk Products 74- Sensors and Sensor Fittings and Connections
19- Batch and Continuous Freesers for Ice Cream, Ices and Similarly Frozen Dairy Foods
Title: 3-A® Sanitary Standards for Uninsulated Tanks for Milk and Milk Products, Number 32-02
Date: Effective August 20, 1994
Scope: A1 These standards cover the sanitary aspects of un-insulated tanks, both open top and closed types, and both single and multiple compartment types, that are intended to be used for one of the following purposes:
A1.1 Mixing of milk and milk products and ingredients.
A1.2 Storage of milk and milk products in uninsulated tanks intended to be located in a room in which the air surrounding the tank will maintain the product temperature.
A1.3 Storage of milk and milk products in uninsulated tanks having heat exchange surfaces to maintain the product temperature.
A1.4 As a raw product constant level tank in a pasteurizing system.
A1.5 As a product surge or feed tank within a milk or milk products processing system, and farm milk handling equipment.
A2 In order to conform with these 3-A Sanitary Standards, uninsulated tanks shall comply with the following design, material, and fabrication criteria.
References: 3-A Sanitary Standard for:
18- Multiple-Use Rubber and Rubber-Like Materials Used as Product Contact Surfaces in Dairy Equipment
20- Multiple-Use Plastic Materials 63- Sanitary Fittings
33- Polished Metal Tubing for Milk and Milk Products 74- Sensors and Sensor Fittings and Connections 51- Plug-Type Valves for Milk and Milk Products
52- Plastic Plug-Type Valves for Milk and Milk Products 53- Compression-Type Valves
54- Diaphragm-Type Valves for Milk and Milk Products
56- Inlet and Outlet Leak-Protector Plug-Type Valves for Milk and Milk Products
3-A Accepted Practice for:
604- Supplying Air Under Pressure in Contact With Milk, Milk Products and Product Contact Surfaces
3-A Sanitary Standards referenced which have been discontinued
55- Boot Seal-Type Valves for Milk and Milk Products
33-02 Polished Metal Tubing for Milk and Milk Products
Title: 3-A® Sanitary Standards for Polished Metal Tubing for Milk and Milk Products, Number 33-02
Date: Effective September 11, 2009
Scope: A1 This standard covers the sanitary aspects of metal tubing used to convey milk and milk products. This standard does not apply to the assembly of metal tubing into further fabricated forms or systems.
A2 In order to conform to this 3-A Sanitary Standard, metal tubing shall conform to the following criteria for materials of
construction, fabrication techniques, and the current revisions or editions of all referenced documents cited herein.
References: 3-A Sanitary Standard for:
34-02 Portable Bins for Dry Milk and Dry Milk Products
Title: 3-A® Sanitary Standards for Portable Bins for Dry Milk and Dry Milk Products, Number 34-02
Date: Effective September 28, 1992
Scope: A1 These standards cover the sanitary aspects of portable bins for storage, transportation and handling of dry milk and dry milk products in bulk. They do not pertain to (1) stationary bins, (2) bins (tanks) installed on automotive highway equipment, or (3) piping and appurtenances that are not attached to the bin.
A2 In order to conform with these 3 A Sanitary Standards, dry milk bins shall comply with the following design, material, and fabrication criteria, and the applicable documents referenced
herein.
References: 3-A Sanitary Standard for:
18- Multiple-Use Rubber and Rubber-Like Materials Used as Product Contact Surfaces in Dairy Equipment
20- Multiple-Use Plastic Materials 63- Sanitary Fittings
74- Sensors and Sensor Fittings and Connections
35-04 Blending Equipment
Title: 3-A® Sanitary Standards for Blending Equipment, Number 35-04
Date: Effective: August 8, 2011
Scope: A1 These standards cover the sanitary aspects of blending equipment used for combining and/or mixing either wet or dry products and includes any component equipment which shall conform to their respective 3-A Sanitary Standards.
A1.1 The blending equipment begins at the entrance to the hopper or infeed pipe connection(s) and ends at the exit pipe fitting and includes all equipment in between.
A2 In order to conform to these 3-A Sanitary Standards, blending equipment shall conform to the following design, material and fabrication criteria
References: 3-A Sanitary Standards for:
02- Centrifugal and Positive Rotary Pumps
18- Multiple-Use Rubber and Rubber-Like Materials 20- Multiple-Use Plastic Materials
32- Uninsulated Tanks 33- Polished Metal Tubing 36- In-Line Rotor-Stator Mixers 51- Plug-Type Valves
52- Plastic Plug-Type Valves 53- Compression-Type Valves 54- Diaphragm-Type Valves 55- Boot Seal-Type Valves 57- Tank Outlet Valves
58- Vacuum Breakers and Check Valves 62- Hose Assemblies
65- Sight and/or Light Windows and Sight Indicators 73- Shear Mixers, Mixers, and Agitators
74- Sensors and Sensor Fittings and Connections Used on Equipment 78- Spray Devices to Remain in Place
81- Auger-Type Feeders
3-A Accepted Practices for:
605- Permanently Installed Product and Solution Pipelines and Cleaning Systems
36-01 Inline Rotor-Stator Mixers
Title: 3-A® Sanitary Standards for Inline Rotor-Stator Mixers Number 36-01
Date: Adopted November 16, 2003
Scope: A1 These standards cover the sanitary aspects of inline devices which use a combination of a rotor and a stator to effect mixing and size reductions for liquids, slurries, and liquid-gas mixtures.
A1.1 The rotor-stator mixer begins at the infeed pipe connection(s) and ends at the exit pipe fitting and includes all equipment in between.
A2 In order to conform to the 3-A Sanitary Standards, rotor-stator inline mixers, (Referred hereinafter as “inline mixers”) shall conform to the following design, material and fabrication criteria and the applicable documents referenced herein.
References: 3-A Sanitary Standard for:
18- Multiple-Use Rubber and Rubber-Like Materials 20- Multiple-Use Plastic Materials
63- Sanitary Fittings
74- Sensors and Sensor Fittings and Connections Used on Equipment
38-00 Cottage Cheese Vats
Title: 3-A® Sanitary Standards for Cottage Cheese Vats, Number 38-00
Date: Effective August 1, 1980
used in the batch production of cottage cheese curd.
A2 In order to conform with these 3-A Sanitary Standards, cottage cheese vats shall comply with the following design, material and fabrication criteria
References: 3-A Sanitary Standard for:
18- Multiple-Use Rubber and Rubber-Like Materials 20- Multiple-Use Plastic Materials
63- Sanitary Fittings
39-01 Pneumatic Conveyors for Dry Milk and Dry Milk
Products
Title: 3-A® Sanitary Standards for Pneumatic Conveyors for Dry Milk and Dry Milk Products, Number 39-01
Date: Adopted November 16, 2003
Scope: A1 These standards cover the sanitary aspects of equipment used in systems solely for the pneumatic conveying of dry milk, dry milk products, or other dry comestibles utilizing air flow which is caused by either a pressure or vacuum differential. These standards are not intended to cover pneumatic conveying equipment or systems that are an integral part of a spray drying or instantizing system unless specifically referenced for that purpose in the applicable 3-A Sanitary Standard or 3-A Accepted Practice. The equipment begins at the point at which product enters the conveyor and ends at the point(s) where product is discharged from the conveyor. With respect to air, the equipment begins at the point where conveying air leaves the final filter and ends at the entrance of the air/product separator equipment. These standards also include any required product accumulation, conditioning and metering equipment which are located before product introduction into the conveying air pipeline and which are provided by the equipment manufacturer.
These standards do not cover the use of:
1. Air slide type conveyors which convey product using air flow through a permeable membrane type media or perforated plate.
containers or bags where ambient air can be introduced to convey product.
3. Product storage bins, hoppers, silos that are part of the air/product separation equipment.
4. Bag collectors, when used as air/product separators, which are covered by 3-A Sanitary Standards for Bag Collectors, No. 40-.
A2 In order to conform to these 3-A Sanitary Standards, pneumatic dry milk conveyors shall conform to the following design, material and fabrication criteria.
References: 3-A Sanitary Standard for:
18- Multiple-Use Rubber and Rubber-Like Materials 20- Multiple-Use Plastic Materials
50- Level Sensing Devices for Dry Products 53- Compression-Type Valves
62- Hose Assemblies
65- Sight and/or Light Windows and Sight Indicators in Contact with Product
66- Caged-Ball Valves 68- Ball-Type Valves
74- Sensors and Sensor Fittings and Connections Used on Equipment 78- Spray Devices to Remain in Place
3-A Accepted Practice for:
604- Supplying Air Under Pressure in Contact with Product, and Product Contact Surfaces
605- Permanently Installed Product and Solution Pipelines and Cleaning Systems
40-04 Bag Collectors
Title: 3-A® Sanitary Standards for Bag Collectors, Number 40-04
Date: Effective: March 16, 2012
Scope: A1 These standards cover the sanitary aspects of bag collectors for the dry filter entrapment and collection of particulates of dry food products from air exhausted from spray drying systems, instantizing systems, or other dry product systems beginning at the flanges or junctions of the product/air inlets of the bag collector and terminating at the flanges or junctions of the air exhaust and product outlets.
With respect to pressurized air, the bag collector starts at the air inlet to the pressurized air reservoir, or, in the case of an internal pressurized air receiver, it shall start at the air inlet to the bag collector.
With respect to processing air, if provided, the bag collector starts at the flange or junction of the processing air inlet(s).
If the bag collector is designed for mechanical cleaning, these standards include the cleaning solution pipelines, valves, and associated components integral to the bag collector.
These standards also include materials and fabrication criteria appropriate for bag collectors:
a. to be cleaned by a variety of methods and with different degrees of prior disassembly.
b. which have optional integral fluid bed components.
These standards do not include equipment mounted upstream from inlet flanges or junctions or downstream from the outlet flanges or junctions, including but not limited to product outlet valves, isolation valves, air ducting, fans, and blowers.
A2 In order to conform to these 3-A Sanitary Standards, bag collectors shall conform to the following design, material, and fabrication criteria, and the applicable documents referenced herein.
References: 3-A Sanitary Standard for:
18- Multiple-Use Rubber and Rubber-Like Materials Used as Product Contact Surfaces in Dairy Equipment
20- Multiple-Use Plastic Materials 63- Sanitary Fittings
74- Sensors and Sensor Fittings and Connections
46- Refractometers and Energy Absorbing Optical Sensors for Milk and Milk Products
41- Mechanical Conveyors for Dry Products
78- Spray Cleaning Devices Intended to Remain in Place
65- Sight and/or Light Windows and Sight Indicators in Contact with Product
49- Air Driven Sonic Horns for Dry Products 50- Level Sensing Devices for Dry Products
58- Vacuum Breakers and Check Valves for Milk and Milk Products 62- Hose Assemblies for Milk and Milk Products
33- Polished Metal Tubing for Milk and Milk Products 85- Double-Seat Mixproof Valves
51- Plug-Type Valves for Milk and Milk Products
52- Plastic Plug-Type Valves for Milk and Milk Products 53- Compression-Type Valves
54- Diaphragm-Type Valves for Milk and Milk Products
56- Inlet and Outlet Leak-Protector Plug-Type Valves for Milk and Milk Products
57- Disc-Type Valves
3-A Accepted Practice for:
604- Supplying Air Under Pressure in Contact With Milk, Milk Products and Product Contact Surfaces
607- Spray Drying Systems
605- Permanently Installed Product and Solution Pipelines and Cleaning Systems Used in Milk and Milk Product Processing Plants
41-03 Mechanical Conveyors for Dry Products
Title: 3-A® Sanitary Standards for Mechanical Conveyors for Dry Products, Number 41-03
Date: Effective: January 4, 2008
Scope: A1 These standards cover the sanitary aspects of mechanical equipment used solely for conveying dry milk and dry milk products except bucket types and are not an integral part of the dryer, commencing with the point at which the product enters the conveyor and ending at the point the product is discharged from the conveyor.
A2 In order to conform to these 3-A Sanitary Standards, mechanical dry milk conveyors shall conform to the following design, material, and fabrication criteria.
References: 3-A Sanitary Standard for:
18- Multiple-Use Rubber and Rubber-Like Materials Used as Product Contact Surfaces in Dairy Equipment
20- Multiple-Use Plastic Materials