1、Designation: F952 12 An American National StandardStandard Specification forMixing Machines, Food, Electric1This standard is issued under the fixed designation F952; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of last
2、revision. A number in parentheses indicates the year of last reapproval. A superscriptepsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This specification covers vertical electri
3、c food mixingmachines in the size range (as expressed by bowl capacity)from 5 to 140 qt. These machines shall be adaptable formixing, whipping, and beating food products. This specifica-tion does not include special purpose machines that areintended solely for mixing dough.1.2 This specification als
4、o covers optional constructionfeatures and attachments that enhance the mixing, beating, orwhipping capabilities of the machine. This specification doesnot cover ancillary equipment that can be driven by theattachment hub.1.3 The values stated in inch-pound units are to be regardedas standard. The v
5、alues given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4 The following precautionary caveat pertains only to thetest methods portion, Section 9, of this specification. Thisstandard does not purport to address all of
6、the safety concerns,if any, associated with its use. It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2. Referenced Documents2.1 ASTM Standards:2D3951 Practice for Commerci
7、al PackagingF760 Specification for Food Service Equipment ManualsF1166 Practice for Human Engineering Design for MarineSystems, Equipment, and Facilities2.2 NSF/ANSI Standards:3NSF/ANSI No. 2 Food EquipmentNSF/ANSI No. 8 Commercial Powered Food PreparationEquipment2.3 Underwriters Laboratories Stand
8、ards:4ANSI/UL 763 Motor-Operated Commercial Food PreparingMachinesANSI/UL 969 Marking and Labeling Systems2.4 ANSI Standards:5ANSI Z1.4 Sampling Procedures and Tables for Inspectionby AttributesANSI S1.13 Methods for Measurement of Sound PressureLevels2.5 Military Standards:6MIL-STD-1399/300 Interfa
9、ce Standard for ShipboardSystems, Section 300A, Electric Power, Alternating Cur-rentMIL-STD-167/1 Mechanical Vibration of Shipboard Equip-ment (Type IEnvironmental and Type IIInternallyExcited)MIL-STD-461 Requirements for the Control of Electromag-netic Interference Characteristics of Subsystems and
10、Equipment3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 agitators, nthese devices attach to the vertical shaftthat protrudes downward from the mixer and converts theplanetary rotation into the desired action on the foodstuffswithin the bowl.3.1.2 attachment hub, nthe device t
11、hat locks ancillarydevices, such as a vegetable slicer or a chopping end, into anindustry standard #12 tapered hub (#10 tapered hub for Size 51This specification is under the jurisdiction of ASTM Committee F26 on FoodService Equipment and is the direct responsibility of Subcommittee F26.04 onMechani
12、cal Preparation Equipment.Current edition approved Nov. 1, 2012. Published December 2012. Originallyapproved in 1985. Last previous edition approved in 2008 as F952 08. DOI:10.1520/F0952-12.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at servi
13、ceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from NSF International, P.O. Box 130140, 789 N. Dixboro Rd., AnnArbor, MI 48113-0140, http:/www.nsf.org.4Available from comm2000, 1414 Brook Dr., Downers Grove,
14、 IL 60515.5Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.6Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/www.dodssp.daps.mil.Copyright
15、 ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1machines) and provides a rotating square drive. This ismounted above the bowl on the front of the mixer.3.1.3 bowl guard, nthe barrier, assembled over the bowlarea, intended to reduce the users a
16、ccess to the hazards thatexist in the bowl during machine operation.4. Classification4.1 Food mixers covered in this specification are the fol-lowing types:4.1.1 Type I, bench-mounted mixer:SizeBowlCapacity,qt,min/maxAgitator r/minMotor Horse-power Rating,minLowestSpeed,less thanHighestSpeed,greater
17、 than5 5/7 150 5001612 12/15 120 3001320 20/25 120 300124.1.2 Type II, floor-mounted mixer:SizeBowlCapacity,qt,min/maxAgitator r/minMotor Horse-power Rating,minLowest Speed,less thanHighestSpeed,greater than20 20/25 120 3001230 30/36 100 3003440 40/45 100 300 11460 60/70 80 280 11280 80/90 80 280 31
18、40 140/160 55 260 54.1.3 Classes:4.1.3.1 Class 1Painted finish.4.1.3.2 Class 2Nonpainted finish. All nonwearing sur-faces to be either polished aluminum, plated carbon steel, orstainless steel.5. Ordering Information5.1 Purchasers should select the mixer and any preferredoptions and include the foll
19、owing information in the purchas-ing document:5.1.1 Title, number, and date of this specification,5.1.2 Type, size, and class of mixer required (see 4.1),5.1.3 Electrical power supply characteristics; voltage,phase, frequency (see 6.5 and 6.7),5.1.4 Bowls, agitators, accessory equipment, options, mi
20、xerguard, spare parts, and maintenance parts required,5.1.5 Labeling requirements (if different than Section 13),5.1.6 Quantity of mixers to be furnished, and5.1.7 Any special requirements or deviations from thisspecification.5.1.8 When Federal/Military procurement is required, re-view and implement
21、 the applicable supplementary require-ments (see S1 through S9).5.1.9 When specified, the purchaser shall be furnishedcertification that samples representing each lot have been eithertested or inspected as directed in this specification and therequirements have been met. When specified, a copy of th
22、e testresults shall be furnished.6. Physical Requirements6.1 Design and ManufactureThe mixer shall meet thethen current applicable requirements of NSF/ANSI No. 8 andANSI/UL 763. Accessories, such as agitators, bowl trucks,bowls, tables, extensions, adapters, splash covers, and storagestands shall me
23、et the applicable requirements of NSF/ANSINo. 2 or NSF/ANSI No. 8 at the time of purchase. Optionalaccessories, component parts, assemblies, and spare parts shallbe identical to the extent necessary to insure interchangeabilitybetween mixers.6.1.1 Compliance with NSF/ANSI No. 8Acceptable evi-dence o
24、f the mixer meeting the requirements of NSF/ANSI No.8 shall be the NSF listing mark on the finished product andlisting in the manufacturers product listings on the NSFwebsite, nsf.org, or a certified test report from a recognizedindependent testing laboratory acceptable to the user, or acertificate
25、issued by NSF under its special one time contractevaluation/certification service.6.1.2 Compliance with ANSI/UL 763Acceptable evidenceof meeting the requirements of ANSI/UL 763 shall be a ULListing mark on the mixer, or a certified test report from arecognized independent testing laboratory acceptab
26、le to theuser.6.2 Drive MechanismThe mixer shall be driven by anelectric motor, through a reduction system, to the planetary/beater shaft system. The entire drive system shall be enclosedwithin the mixer itself. All constituent active parts within thedrive system shall be replaceable. All mixers sha
27、ll be equippedwith an internal clutch, shock absorber, or belt drive tominimize the shock of starting or shifting gears of the mixer.Size 60 and larger gear drive speed selection mixers shall eitherbe equipped with a shift interlock switch that will automati-cally disconnect power to the main drive
28、motor if the operatorattempts to shift speeds without first shutting off the motor orbe designed to permit speed changes during operation.6.3 Speed SelectorA speed selector shall be provided tochange agitator speed. Either continuously variable or discretespeed selection is acceptable. A means to pr
29、ovide the user withreference marks for speed repeatability is required. In no caseshall less than three distinct speeds be available on gear boxequipped mixers or three distinct markings be available oncontinuously variable transmissions.6.4 Beater ShaftThe beater shaft shall be verticallymounted an
30、d shall be held securely in place. Agitators shall fitsecurely and shall be capable of being removed or replacedwithout tools. The beater shaft shall be connected to planetarygearing to provide two separate rotating motions of the agitatorsimultaneously.6.5 Motor(s)Minimum horsepower rating for the
31、maindrive motor of the mixer shall meet the requirements of 4.1.1or 4.1.2, as appropriate. If an auxiliary motor is used to performanother function (such as, bowl lifts), it shall be internallyinterconnected within the mixer to provide a single electricalpoint connection. Size 5 through 30 mixers sh
32、all be availablefor operation on a 120/60/1 line. Size 60 and larger mixers shallbe available for operation on a 208/60/3 line. Other voltageavailabilities are at the discretion of the manufacturer. Mixerswith three phase motors shall be provided with a plate, label, ordecal showing the direction of
33、 rotation. In all cases, the maindrive motor shall be rated for continuous duty.F952 1226.6 Power SupplyThe mixer may either be provided witha power supply cord or designed for permanent electricalconnection. Power supply cords shall be a minimum 5-ft(1.52-m) length and provided with a grounding typ
34、e attach-ment plug. Mixer housings designed for permanent electricalconnection shall be provided with an appropriate hole sized forconduit connection.6.7 Electrical SpecificationsNominal electrical specifica-tions are as follows: 120/60/1, 208/60/1, 240/60/1, 208/60/3,240/60/3, and 480/60/3.6.8 Mixi
35、ng BowlsBowls shall meet the requirements ofNSF/ANSI No. 8. Bowl requirements should be stated in thepurchasing document. The bowl shall be equipped with twohandles. If the bowl is metallic, the minimum wall thicknessfor bowls of 60-qt (56.8-L) capacity or less is 0.0625 in. (1.6mm). For bowls of la
36、rger than 60-qt (56.8-L) capacity, theminimum metallic thickness is 0.0781 in. (2 mm). The mini-mum thickness at any point of the bowl after forming shall beno less than 0.050 in. (1.27 mm) for bowls of 60 qt (56.8 L) orless capacity and not less than 0.062 in. (1.58 mm) for bowlsover 60-qt (56.8-L)
37、 capacity. All bowls shall be equipped witha durable metallic means of attachment to the bowl yoke.Bowls of 60-qt (56.8-L) capacity or greater shall be reinforcedat the points of attachment to the bowl yoke. Bowls ofnonmetallic construction shall have equivalent durability tometallic bowls. Metal bo
38、wls shall be made from stainless steel.6.9 AgitatorsMixers meeting this specification must beavailable with batter beater, sweet dough beater, dough hook,pastry knife, wing whip, and wire whip suitable for use withthe bowl size(s) specified. Stainless steel must be used on thewires of whips.6.10 Bow
39、l LiftThe mixer shall be provided with a mecha-nism for raising and lowering the bowl. Mixers of 60-qt(56.8-L) capacity or more shall be equipped with a poweredbowl lift. Size 40 and smaller mixers shall have a manuallyoperated lift mechanism with a positive stop at the extremitiesof the travel. In
40、all cases, a stop shall be provided to prevent theagitator from contacting the bowl when proper bowls andagitators are used together.6.11 Bowl SupportThe bowl support shall have three lugpositions matching lugs on the bowl. All mixers shall have apositive bowl locking mechanism to prevent bowl motio
41、nunder heavy loads.6.12 BaseThe base shall be constructed of materials thatare consistent with the need for rigidity and durability. For Size12 and larger machines, means shall be provided for bolting themixer to a stand (Type I) or to the floor (Type II).6.13 TimerSize 60 and larger mixers shall be
42、 providedwith a 15-min timer. The timer shall stop the mixer drive motorupon operating for the preset time. The timer or mixer designshall include an override position to permit continuous opera-tion. Mixers less than size 60 shall be available with anoptional timer to provide the functions stated a
43、bove.6.14 Attachment HubSize 60 and smaller mixers shall beprovided with an attachment hub for operating vegetable andcheese slicing, meat chopping, dicing, or equivalent attach-ments. This attachment hub shall be capable of at least 350rpm. This requirement can be met by the manufacturer with ananc
44、illary speed increaser attachment of aluminum construction.6.15 Bowl TruckType II mixers shall have optionallyavailable a bowl truck whose use is compatible with the basedesign of the mixer. The bowl truck shall be durably con-structed and designed to hold the bowl above the point ofattachment to th
45、e bowl support when the support is at its lowestposition.6.16 Other Optional Equipment:6.16.1 Mixing Bowl ExtensionShall be optionally avail-able for size 60 and 80 mixers and made of the same materialas the bowl.6.16.2 Bowl AdaptersSize 20 and larger mixers shall beoptionally available with bowl ad
46、apters to use the next smallersize bowl and agitators.6.16.3 Splash CoversShall be optionally available for size60 and larger mixers.6.16.4 TableShall be optionally available for Type I, Size20. When specified, the table shall be 24 in. (610 mm) highwith a horizontal surface of 30 by 24 in. (762 by
47、610 mm). Afull-size shelf under the top surface shall be provided forancillary equipment storage. It shall be of stainless steelconstruction, able to support a load of 250 lb (113.4 kg).6.17 LubricationAll wearing parts of the mixer shall beprovided with a means for lubrication or be permanentlylubr
48、icated and sealed. Oil seals shall contain the lubricant. Gearhousings shall have provisions for lubrication and shall allowlubricant to circulate around gears if applicable.6.18 FinishingAll exterior surfaces of the mixer andattachments described within this specification shall be finishedto the re
49、quirements of NSF/ANSI No. 8.6.19 WorkmanshipAll components and assemblies of themixer shall be free of dirt and other extraneous materials, burrs,slivers, tool and grind marks, dents, and cracks. Castings,molded parts, and stampings shall be free of voids, sand pits,blow holes, and sprues. External surfaces shall be free of sharpedges and corners. All sheet metals used in the fabrication ofthe mixing machine shall be free from kinks and unspecifieddents. Forming and welding shall not cause damage to themetal and shall be done neatly and ac
