ASTM F953-94(1998)
(Specification)Standard Specification for Commercial Dishwashing Machines (Stationary Rack, Dump Type) Chemical Sanitizing
Standard Specification for Commercial Dishwashing Machines (Stationary Rack, Dump Type) Chemical Sanitizing
SCOPE
1.1 This specification covers manually fed, spray-type, stationary rack, automatically controlled, dump type, chemical sanitizing commercial dishwashing machines.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: F 953 – 94 (Reapproved 1998)
Standard Specification for
Commercial Dishwashing Machines (Stationary Rack, Dump
Type) Chemical Sanitizing
This standard is issued under the fixed designation F 953; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope 2.5 ASSE Standard:
Std. No. 1004 Dishwashers
1.1 This specification covers manually fed, spray-type, sta-
2.6 ANSI Standard:
tionary rack, automatically controlled, dump type, chemical
301 Preferred Diameters of Wire Terminations of Capaci-
sanitizing commercial dishwashing machines.
tors and Resistors
2. Referenced Documents
3. Terminology
2.1 ASTM Standards:
3.1 Definitions:
A 167 Specification for Stainless and Heat-Resisting
2 3.1.1 commercial dishwashing machines—machines that
Chromium-Nickel Steel Plate, Sheet, and Strip
uniformly wash, rinse, and sanitize eating and drinking uten-
A 276 Specification for Stainless Steel Bars and Shapes
sils. The machines shall be capable of removing physical soil
A 554 Specification for Welded Stainless Steel Mechanical
and sanitizing multiple use eating and drinking utensils. The
Tubing
dishwashing machines normally consist of the following prin-
A 582 Specification for Free-Machining Stainless Steel
cipal parts: Legs, wash chamber hood, tank, doors, spray
Bars
assemblies, pumps, motors, controls, piping, valves, chemical
B 127 Specification for Nickel-Copper Alloy (UNS
sanitizing equipment, and accessories.
NO4400) Plate, Sheet, and Strip
F 760 Specification for Food Service Equipment Manuals
4. Classification
2.2 OSHA Standard:
4.1 Types, Styles, Classes, and Groups— Dishwashing ma-
Title 29, Code of Federal Regulations (CFR), Chapter
chines shall be of the following types, styles, classes, size, and
XVII, Part 1910
capacity groups as specified:
2.3 NSF Standards:
4.1.1 Type I—Straight-through model, 34 in. nominal table
ANSI/NSF 3 Commercial Spray-Type Dishwashing and
height. This machine is used in line with table on each side.
Glasswashing Machines
4.1.1.1 Style A—Single rack.
ANSI/NSF 29 Detergent/Chemical Feeders for Commercial
3 3
4.1.1.2 Size and Capacity,19 ⁄4 by 19 ⁄4-in. (nominal) racks
Spray-Type Dishwashing Machines
at minimum of 36 racks per hour.
NSF Listing Food Equipment
4.1.1.3 Style B—Double rack.
2.4 UL Standards:
3 3
4.1.1.4 Size and Capacity,19 ⁄4 by 19 ⁄4-in. (nominal) racks
UL 921 Commercial Electric Dishwashers
at minimum of 72 racks per hour.
UL 969 Marking and Labeling Systems
4.1.2 Type II—Corner model, 34 in. nominal table height.
This machine is used in corner placement forming a 90° table
on each side.
4.1.2.1 Style A—Single rack.
This specification is under the jurisdiction of ASTM Committee F-26 on Food
3 3
Service Equipment and is the direct responsibility of Subcommittee F26.01 on
4.1.2.2 Size and Capacity,19 ⁄4 by 19 ⁄4-in. (nominal) racks
Cleaning and Sanitation Equipment.
at minimum of 36 racks per hour.
Current edition approved Nov. 15, 1994. Published January 1995. Originally
4.1.2.3 Style B—Double rack.
published as F 953 – 85. Last previous edition F 953 – 85 (1990).
3 3
Annual Book of ASTM Standards, Vol 01.03. 4.1.2.4 Size and Capacity,19 ⁄4 by 19 ⁄4-in. (nominal) racks
Annual Book of ASTM Standards, Vol 01.01.
at minimum of 72 racks per hour.
Annual Book of ASTM Standards, Vol 02.04.
4.1.3 Type III—Under counter, front load. This machine
Annual Book of ASTM Standards, Vol 15.07.
may be installed under counters.
Available from Superintendent of Documents, Government Printing Office,
Washington, DC 20402.
Available from NSF International, P.O. Box 130140, Ann Arbor, MI 48113-
Available from American Society of Sanitary Engineering, P. O. Box 9712, Bay
0140.
Village, OH 44140.
Available from Underwriters Laboratories, Inc., 333 Pfingsten Road, North-
Available from American National Standards Institute, 11 W. 42nd St., 13th
brook, IL 60062.
Floor, New York, NY 10036.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
F 953
4.1.3.1 Style A—Single rack. be equally satisfactory for their intended purpose are accept-
3 3
4.1.3.2 Size and Capacity,19 ⁄4 by 19 ⁄4-in. (nominal) racks able. Materials used shall be free from defects that would
at minimum of 21 racks per hour. adversely affect the performance or maintainability of indi-
vidual components of the overall assembly. The dishwashing
5. Ordering Data
machines shall meet the material requirements of ANSI/NSF 3.
5.1 Purchasers should select the preferred options permitted
9.1.1 Corrosion-Resistant Steel—Corrosion-resistant steel
herein and include the following information in the procure-
shall conform to the requirements of ANSI 301 specified in 2.6.
ment document:
9.1.2 Corrosion-Resisting Material—Corrosion-resisting
5.1.1 Title, number, and date of this specification.
material is other than corrosion-resistant steel that is equivalent
5.1.2 Type I or II straight through, corner machine, or Type
in the dishwasher application.
III under counter (see 4.1).
9.1.3 Nickel-Copper Alloy—Nickel-copper alloys shall con-
5.1.3 Noise level requirements, if other than specified (see
form to the requirements of Specifications B 127, A 582, A 554,
6.2).
A 276, and A 167.
5.1.4 When a service-supply valve is required (see 9.3.3).
9.2 Construction—The dishwasher shall conform to the
5.1.5 Special electrical power supply characteristics.
design and construction requirements of ANSI/NSF 3. The
Specify current, voltage, phase, frequency (see 9.4). Standard
dishwashing machine shall be complete so that when con-
electrical characteristics are 115 V, single phase, 60 Hz.
nected to the specified source of power, water supply, drain and
5.1.6 When detergent feeder is required.
detergent, sanitizer, and rinse agent feeders, as applicable, the
5.1.7 When rinse agent feeder is required.
unit can be used for its intended function. Dishwashers shall be
5.1.8 When energy consumption profiles, water consump-
rigid, quiet in operation, free from objectionable vibration, and
tion profiles, or productivity profiles are desired (see 7.3).
so constructed as to prevent objectionable splashing of water or
5.1.9 Manufacturer’s certification, when required (see Sec-
overflow of water to the outside of the machine. Parts requiring
tion 10).
adjustment or service, or both, shall be readily accessible. The
machine shall wash dishes by means of a water and detergent
6. Performance Requirements
solution pumped from the tank, and shall rinse the dishes with
6.1 Performance Standards Compliance— Dishwashing
a pumped, recirculated fresh water sanitizer solution. Provi-
machines shall conform to the requirements of OSHA Title 29,
sions shall be made to automatically fill the tank directly from
UL 921, and ANSI/NSF 3, and the detergent, rinse agent, and
the regular hot water supply. The wash, dwell, and sanitizing
sanitizer feeders shall comply with ANSI/NSF 29.
rinse cycles shall be automatically controlled. A light shall be
6.2 Noise Level—Unless otherwise specified, the noise level
provided to indicate when the machine is in operation. Ma-
of the dishwasher, when operating, exclusive of loading,
chines shall be provided with tracks of corrosion-resistant steel
unloading, and servicing, shall not exceed 80 dBa at loading
or other corrosion-resisting material not less than 14 gage
and unloading stations, measured at 5 ft above floor level, and
(0.070 in. (1.78 mm)). Dishwashers shall have an inside
2 ft from the machine.
working height, including the door height, of not less than 16
in. (406.4 mm) above the track.
7. Test Methods
9.3 Operation Cycle—At the beginning of the wash cycle, a
7.1 Operational—Each machine shall be thoroughly tested
detergent dispenser shall be activated to supply a measured
in accordance with the manufacturer’s instructions to deter-
amount of detergent into the tank. The machine will automati-
mine compliance with the requirements of ANSI/NSF 3 and
cally start the wash cycle, after which, the drain automatically
UL 921.
opens to “dump” the wash water to a holding tank or to a drain.
7.2 External Leakage—No leakage shall occur when tested
Before the drain closes, the water fill solenoid is actuated,
at pressures up to 125 % of the manufacturer’s recommended
creating a flush cycle, after which the drain closes. At this time,
supply line pressure.
water, rinse additive, if applicable, and sanitizing solution are
7.3 Performance Profiles—A new standard is to be devel-
supplied to the tank. The machine automatically completes the
oped for energy consumption, water consumption, and produc-
rinse cycle and then shuts down. The rinse tank fill then
tivity profiles.
becomes the water for the next wash cycle or automatically fills
8. Quality Assurance the machine with water at the start of the next cycle.
9.3.1 Piping, Tubing, Fittings, and Valves (Installation)—
8.1 Unless otherwise specified in the contract or purchase
Connections shall be readily accessible to facilitate installation
order, the manufacturer is responsible for the performance of
and maintenance. Piping, tubing, and valves shall be located,
all requirements as specified herein. Except as otherwise
whenever possible, on the exterior of the machine.
specified in the contract or order, the manufacturer may use his
9.3.2 Piping and Fittings—Water piping and fittings shall
own or any other facilities suitable for the testing of the
machine requirements specified herein. be of corrosion-resisting material. Fresh water supply to the
tank shall be discharged not lower than 2 in. (50.8 mm) above
9. Physical Requirements
the maximum flood level rim, or an effective air gap or vacuum
9.1 Materials—All materials shall b
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.