1、Designation: F 952 08Standard Specification forMixing Machines, Food, Electric1This standard is issued under the fixed designation F 952; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parent
2、heses indicates the year of last reapproval. Asuperscript epsilon (e) 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 electric food mixingmachines in th
3、e 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 also covers optional construct
4、ionfeatures 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. No other units of measurement ar
5、e included in thisstandard.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 the safety concerns,if any, associated with its use. It is the responsibility of the userof this standard to e
6、stablish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2. Referenced Documents2.1 ASTM Standards:2D 3951 Practice for Commercial PackagingF 760 Specification for Food Service Equipment ManualsF 1166 Practice for Human Engineering Desig
7、n for MarineSystems, Equipment, and Facilities2.2 NSF/ANSI Standards:3NSF/ANSI No. 2 Food EquipmentNSF/ANSI No. 8 Commercial Powered Food PreparationEquipmentNSF Food Equipment Listing (Current Year)2.3 Underwriters Laboratories Standards:4ANSI/UL 763 Motor-Operated Commercial Food PreparingMachines
8、ANSI/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 Interface Standard for Shipboard Sys-tems, Section 300A, Electric Power,
9、Alternating CurrentMIL-STD-167/1 Mechanical Vibration of Shipboard Equip-ment (Type IEnvironmental and Type IIInternallyExcited)MIL-STD-461 Requirements for the Control of Electro-magnetic Interference Characteristics of Subsystems andEquipment3. Terminology3.1 Definitions of Terms Specific to This
10、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 that locks ancillarydevices, such as a vegetable slicer or a chopp
11、ing end, into anindustry standard #12 tapered hub (#10 tapered hub for Size 5machines) 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 access to the hazards thatexi
12、st in the bowl during machine operation.1This specification is under the jurisdiction of ASTM Committee F26 on FoodService Equipment and is the direct responsibility of Subcommittee F26.04 onMechanical Preparation Equipment.Current edition approved April 1, 2008. Published April 2008. Originallyappr
13、oved in 1985. Last previous edition approved in 2003 as F 952 03.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM webs
14、ite.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, IL 60515.5Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/w
15、ww.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.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4. Classification4.
16、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 than5 5/7 150 5001612 12/15 120 3001320 20/25 120 300124.1.2 Type II, floor-mounted mi
17、xer: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 3140 140/160 55 260 54.1.3 Classes:4.1.3.1 Class 1Painted finish.4.1.3.2 Class 2Nonpainte
18、d 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 following information in the purchas-ing document:5.1.1 Title, number, and date of this spe
19、cification,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, mixerguard, spare parts, and maintenance parts required,5.1.5 Labeling requirements (if d
20、ifferent 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 the applicable supplementary require-ments (see S1 through S9).5.1.9 When specified, t
21、he 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 the testresults shall be furnished.6. Physical Requirements6.1 Design and ManufactureThe
22、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 meet the applicable requirements of NSF/ANSINo. 2 or NSF/ANSI No. 8 at the time of purcha
23、se. 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 of the mixer meeting the requirements of NSF/ANSI No.8 shall be the NSF listing mark on
24、the finished product andlisting in the current edition of the NSF Official Listing of FoodEquipment, or a certified test report from a recognized inde-pendent testing laboratory acceptable to the user, or a certifi-cate issued by NSF under its special one time contractevaluation/certification servic
25、e.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 acceptable to theuser.6.2 Drive MechanismThe mixer shall be driven by anelectric motor,
26、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 shall be equippedwith an internal clutch, shock absorber, or belt drive tominimize
27、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 motor if the operatorattempts to shift speeds without first shutting off the mot
28、or 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 provide the user withreference marks for speed repeatability is required. In no ca
29、seshall 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 and shall be held securely in place. Agitators shall fitsecurely and shall be capa
30、ble 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 maindrive motor of the mixer shall meet the requirements of 4.1.1or 4.1.2, as ap
31、propriate. 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 shall be availablefor operation on a 120/60/1 line. Size 60 and larger mixers shal
32、lbe 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 rotation. In all cases, the maindrive motor shall be rated for continuous duty.
33、6.6 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 lengthand provided with a grounding type attachment plug. MixerF952082housings designed for permanent electrical connection shall beprov
34、ided with an appropriate hole sized for conduit 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 Mixing BowlsBowls shall meet the requirements ofNSF/ANSI No. 8. Bowl requirements should be sta
35、ted in thepurchasing document. The bowl shall be equipped with twohandles. If the bowl is metallic, the minimum wall thicknessfor bowls of 60-qt capacity or less is 0.0625 in. For bowls oflarger than 60-qt capacity, the minimum metallic thickness is0.0781 in. The minimum thickness at any point of th
36、e bowlafter forming shall be no less than 0.050 in. for bowls of 60 qtor less capacity and not less than 0.062 in. for bowls over 60-qtcapacity. All bowls shall be equipped with a durable metallicmeans of attachment to the bowl yoke. Bowls of 60-qt capacityor greater shall be reinforced at the point
37、s of attachment to thebowl yoke. Bowls of nonmetallic construction shall haveequivalent durability to metallic bowls. Acceptable metalbowls will be either tin-plated carbon steel or stainless steel.6.9 AgitatorsMixers meeting this specification must beavailable with batter beater, sweet dough beater
38、, 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 Bowl LiftThe mixer shall be provided with a mecha-nism for raising and lowering the bowl. Mixers of 80-qtcapacity or more shall be equipped with
39、 a powered bowl lift ifspecified in the purchase document. Size 60 and smaller mixersshall have a manually operated lift mechanism with a positivestop at the extremities of the travel. In all cases, a stop shall beprovided to prevent the agitator from contacting the bowl whenproper bowls and agitato
40、rs 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 motionunder heavy loads.6.12 BaseThe base shall be constructed of materials thatare consistent with the need for rigi
41、dity 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 providedwith a 15-min timer. The timer shall stop the mixer drive motorupon operating for the preset time. The
42、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 above.6.14 Attachment HubSize 60 and smaller mixers shall beprovided with an attachment hub for operating vegetab
43、le 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 anancillary speed increaser attachment of aluminum construction.6.15 Bowl TruckType II mixers shall have optionallyav
44、ailable 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 the bowl support when the support is at its lowestposition.6.16 Other Optional Equipment:6.16.1 Mixing Bowl Extens
45、ionShall 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 adapters to use the next smallersize bowl and agitators.6.16.3 Splash CoversShall be optionally available for size
46、60 and larger mixers.6.16.4 TableShall be optionally available for Type I, Size20. When specified, the table shall be 24 in. high with ahorizontal surface of 30 by 24 in.Afull-size shelf under the topsurface shall be provided for ancillary equipment storage. Itshall be of stainless steel constructio
47、n, able to support a load of250 lb.6.17 LubricationAll wearing parts of the mixer shall beprovided with a means for lubrication or be permanentlylubricated and sealed. Oil seals shall contain the lubricant. Gearhousings shall have provisions for lubrication and shall allowlubricant to circulate arou
48、nd gears if applicable.6.18 FinishingAll exterior surfaces of the mixer andattachments described within this specification shall be finishedto the requirements of NSF/ANSI No. 8. All sand cast partsshall be ground smooth and, if manufactured of corrodingmaterials, painted, or otherwise finished with
49、 a noncorrodingtreatment.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 accuratel
