1、Designation: E 2463 05Standard Performance Specification forCargo Bed Cover (CBC) M105A2 Trailer, Type II1This standard is issued under the fixed designation E 2463; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last
2、revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers the general performance re-quirements for the Type II Cargo Bed Cover (CBC). The TypeII Cargo Be
3、d Cover is a removable general purpose rigidenclosure for the cargo bed of the M105A2 Trailer. The TypeII CBC provides environmental protection and security formission equipment and items of general transport.1.2 The values stated in inch-pound units are to be regardedas the standard. The values giv
4、en in parenthesis are forinformation only.1.3 The following safety hazards caveat pertains only to thetest required portion, Section 4, 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 t
5、his standard to establish appropriate safety and healthpractices and determine the applicability of regulatory require-ments prior to use.2. Referenced Documents2.1 ASTM Standards:2E 1925 Specification for Engineering and Design Criteriafor Rigid Wall Relocatable Structures2.2 Army Standards:3ARMY T
6、M 9-2320-280-10 HMMVW Training ManualARMY TM 10-5411-232-13 the Type II CBC shall beexamined for the visual defects in Table 1, dimensions speci-fied, and tested as specified and in the sequence specified inTable 2. Unless otherwise specified (see 6.2), all testing shallbe performed on the same Type
7、 II CBC. The presence of anyvisual defect, any dimension not within the specified tolerance,or failure of any test shall be cause for rejection of the firstarticle.4.2.2 Comparison Sample InspectionWhen a comparisonsample inspection is required (see 6.2), it shall be inspected andtested as specified
8、 in 4.2.1.4.2.3 Quality Conformance InspectionUnless otherwisespecified, sampling for inspection shall be performed in accor-dance with ANSI/ASQC Z1.4-2003.4.2.3.1 Component and Material InspectionIn accordancewith 4.1, components and materials shall be inspected inaccordance with all the requiremen
9、ts of referenced documentsunless otherwise excluded, amended, modified, or qualified inthis specification or applicable purchase document.4.2.3.2 End Item Visual ExaminationThe end item shallbe examined for the defects listed in Table 3. The lot size shallbe expressed in units of one Type II CBC. Th
10、e sample unitshall be one Type II CBC. The inspection level shall be II andthe AQL, expressed in terms of defects per hundred units, shallbe 4.0 for major defects and 6.5 for total (major and minorcombined) defects.4.2.3.3 End Item Dimensional ExaminationThe end itemshall be examined for conformance
11、 to dimensions specified.E2463054Any dimension not within the specified tolerance shall beclassified as a defect. The lot size shall be expressed in units ofone shelter. The sample unit shall be one shelter. The inspec-tion level shall be II and theAQL, expressed in terms of defectsper hundred units
12、, shall be 4.0.4.3 Verification Methods4.3.1 WeightCompliance with 3.2.1 shall be determinedby weighing the Type II CBC and its mounting hardware. Thescale used shall have a one (1) lb or less graduation and shallhave an accuracy within plus or minus one (1) lb. The scaleshall have a current calibra
13、tion traceable to the NationalInstitute for Standards and Technology. Failure to meet therequirements of 3.4.1 shall constitute failure of this test.4.3.2 Tailgate OperationWith the Type II CBC mountedon its carrier, the carriers tailgate shall be operated (that is,opened and then closed). Failure t
14、o meet the requirements of3.2.2 shall constitute failure of this test.4.3.3 BlackoutThe Type II CBC/carrier combination shallbe located at the center of a circle of radius 300 meters, onlevel ground, in an area with a wooded or hilly background(that is, the silhouette should not be above the horizon
15、). Thereshall be no significant obstructions (higher than 18 in. (46cm)between observers located on the circumference of the circleand the Type II CBC/carrier combination. Testing will beconducted in hours of darkness between early evening nauticaltwilight (EENT) and beginning morning nautical twili
16、ght(BMNT) on a moonless night. A 100-watt unshielded whitelight bulb, rated at no less than 17 Lumens per Watt,A-19 style,shall be located inside the Type II CBC and suspendedapproximately one (1) ft from the top and center of the Type IICBC with all doors, ports, and vents closed. The light shall b
17、eturned on and off at random intervals for a period of 5 minutes.Eight observers, positioned along the circumference of thecircle at 45 degree intervals starting from the forward longitu-dinal axis of the Type II CBC/carrier combination, shall recordany light detected during the test period. Failure
18、 to meet therequirements of 3.2.3 shall constitute failure of this test.4.3.4 InterchangeabilityCompliance with 3.2.4 shall bedetermined by selecting two Type II CBCs from the productionlot of completed Type II CBCs. All removable parts shall beinterchanged between Type II CBCs selected. The interch
19、angeshall be accomplished by removing the fasteners, interchang-ing the parts and reinstalling the fasteners. Inability to inter-change the parts in accordance with 3.2.4 shall constitutefailure of this test.4.3.5 MountingUsing only the hardware provided withthe Type II CBC, the Type II CBC shall un
20、dergo 10 cycles ofinstallation and removal (see Table 2) from its carrier inaccordance with its manual. The CBC and its carrier shall beinspected after each cycle for damage or degradation. Failureto meet the requirements of 3.2.5 shall constitute failure of thistest.4.3.6 ToxicityDemonstrate the Ty
21、pe II CBC does notproduce toxic exposures by meeting ACGIH Threshold LimitValues for materials used in the Type II CBCs construction.Atthe beginning of First Article Verifications (FAV) and duringthe high temperature phases of temperature range (4.3.23.1)and thermal shock (4.3.23), a panel of three
22、inspectors shallperform odor tests. Any smell, persisting after 15 seconds,classified as nauseous, repellent, burning or strongly penetrat-ing or causing dizziness, drying of nasal passages, sneezing orany adverse reaction, detected by any of the inspectors shall beconsidered a failure. Failure to m
23、eet the requirements of 3.3.5shall constitute failure of this test.4.3.7 Personnel Door.4.3.7.1 Door HandleThe personnel door shall be securelyclosed. A 10-lb force shall be applied to the exterior personneldoor handle in the direction which best facilitates moving thehandle into its open position.
24、After it has been verified that 10lbs is adequate to move the handle fully into its open position,the personnel door shall be opened 160 degrees. The personneldoor shall then be closed and a 10-lb force shall be applied tothe exterior handle in the direction which best facilitatesmoving the handle t
25、o its closed position. Failure to meet therequirements of 3.3.1.1 shall constitute failure of this test.4.3.7.2 Secondary ExitThe Type II CBC secondary exitshall be measured and examined to determine compliance with3.3.1.2. The secondary exit with the tailgate closed shall beTABLE 1 Sequence Of Firs
26、t Article VerificationsVerification RequirementParagraphVerificationParagraphDimensions 3.2.1 4.3.1Weight 3.2.1 4.3.1Payload 3.4.2 4.3.13Workmanship (Visual)Toxicity (initial) 3.2.6 4.3.6Non-skid surfaces 3.6.1 4.3.17.1Interior Color 3.6.2 4.3.17.2Exterior Color 3.6.3 4.3.17.3Chemical agent resistan
27、ce 3.6.4 4.3.18Identification 3.6.5 4.3.19Mounting (Perform 212 times) 3.2.5 4.3.5Tailgate operation 3.2.2 4.3.2Personnel door 3.3.1 4.3.7Door handle 3.3.1.1 4.3.7.1Secondary exit 3.3.1.2 4.3.7.2Ladder 3.3.2 4.3.8Roof access steps/handholds 3.3.3 4.3.9Power and signal access ports 3.3.4 4.3.10Vents
28、3.3.5 4.3.11Mounting (Perform 2 times) 3.2.5 4.3.5Roof loads 3.4.1 4.3.12Personnel door structure 3.4.3.1 4.3.14.1Door Stop 3.4.3.2 4.3.14.2Surface impact resistance 3.4.4 4.3.15Interior payload provisions 3.4.2 4.3.13Rail 3.5.1 4.3.16.1Fixed wing 3.5.2 4.3.16.2Helicopter Sling Lift 3.5.3 4.3.16.3Gr
29、ound Mobility 3.5.4 4.3.16.4Lifting provisions/mounting 3.5.5 4.3.16.5Temperature shock 3.7.5 4.3.23Toxicity (Final) 3.2.6 4.3.6Blowing sand and dust 3.7.6 4.3.24Watertightness 3.7.10 4.3.29Blackout 3.2.3 4.3.3Interchangeability 3.2.4 4.3.4Repeat the following: 3.2.4 4.3.4Tailgate operation 3.2.2 4.
30、3.2Humidity resistance 3.7.1 4.3.20Marine atmosphere 3.7.2 4.3.21Ice 3.7.3 4.3.22Temperature range 3.7.4 4.3.23Ultraviolet effects 3.7.7 4.3.25Flame resistance 3.7.8 4.3.26Fungus 3.7.9 4.3.27E2463055opened from inside the Type II CBC by applying a 10-lb forcein the direction which best facilitates i
31、ts opening. Failure tomeet the requirements of 3.3.1.2 shall constitute failure of thistest.4.3.8 LadderThe ladder shall be attached to the Type IICBC/carrier combination in accordance with the Type II CBCmanual. A 400-lb load shall be applied to the center of eachstep of the ladder for 1 minute. Th
32、e ladder, Type II CBC andcarrier shall be examined for damage or deformation. Failure tomeet the requirements of 3.3.2 shall constitute failure of thistest.4.3.9 Roof Access Steps/HandholdsEach deployed step/handhold shall be individually subjected to a vertical load of400 lbs applied to its outer m
33、ost point and maintained for one(1) minute. The handhold mounted to the roof shall have ahorizontal load of 400 lbs applied to the outer most point of thedeployed handhold. The roof access steps/handholds shall beevaluated for compliance with 3.3.3. Failure to meet therequirements of 3.3.3 shall con
34、stitute the failure of this test.4.3.10 Power and Signal Access PortsThe Type II CBCshall be inspected for compliance with 3.3.4. Failure to meetthe requirements of 3.3.4 shall constitute failure of this test.4.3.11 VentsThe ventilation ports shall be inspected forcompliance with 3.3.5. Failure to m
35、eet the requirements of3.3.5 shall constitute failure of this test.4.3.12 Roof LoadsThe Type II CBC roof shall be sub-jected to a uniform load of 40 lbs/ft2over the entire surface.After removal of the uniform load, a 660-lb load shall beapplied to the weakest region of the roof overa1ft3 2 ft area.T
36、ABLE 2 Ground MobilityLimited MileageSurface/Test CourseMaximum Speed(MPH)Average Speed(MPH)Distance(Miles)Highwayspaved roads (Perryman straightaway) 60 (96.5 km/h) 50 (80.5 km/h) 100 (160.9 km)Gravel roads (Munson gravel road course) 20 (32.2 km/h) 10 (16.1 km/h) 100 (160.9 km)Cross-country (unimp
37、roved) (Perry cross-countrysecondary road “A”)20 (32.2 km/h) 10 (16.1 km/h) 600 (965.4 km)Belgian block (Munson Belgian block) 20 (32.2km/h) 10 (16.1km/h) 200 (321.8 km)Radial washboard 2 to 4-in. (5.1 to 10.2 cm) waves 5 lapsTwo-inch (5.1 cm) washboard 5 lapsTABLE 3 End Item Visual DefectsExamine D
38、efect ClassificationMajor MinorFinish Not as specified, not finished where required 101Not adherent, for example, blistered, peeled 201Runs, wrinkles, streaks, or areas of no film 202Finish not dry, that is, wet or tacky to touch 203Scratch, gouge, abrasion exposing prime coat or bare metal, inaccor
39、dance with the drawings204Any area of rust 205Design Any characteristic not in accordance with specified requirement 102Construction andWorkmanshipComponent or part fractured, split, punctured, dented, ormalformed103Component missing, inoperative, or will not operate as intended 104Component not pro
40、perly assembled or secured 105Any functioning component which requires abnormal force tooperate206Burr, rough or sharp edges, or silver which may be injurious topersonnel or cargo106Gaskets torn or split 107Gasket or seals painted 207Visible gaps between aluminum faces and extruded edges orpanel cut
41、out edge members108Welding and brazing(where required)Not type specified, missing where required 109Incomplete, burn through area pits, crack or fracture, or otherwisenot fused110Stag inclusion, undercoat, not smooth and uniform, scale or fluxdeposit not removed208Metal fasteners, bolts, nuts, Missi
42、ng, not type specified, broken, stripped, or loose 111screws, studs Lockwasher missing where required 209Rivets Missing 112Not type specified 113Not sufficiently peened, not drawn tight, excessively peened 210Cloth cut or tear longer than18 in. 114Hole larger than18 in. diameter 115Marking Missing,
43、incomplete, not legible, not specified type or size,misplacedInstruction plate: nameplate Missing, incomplete, not legible 116Instruction manual Missing, incomplete, not legible 117E2463056Each test shall be for a duration of 5 minutes. Failure to meetthe requirements of 3.4.1 shall constitute failu
44、re of this test.4.3.13 Interior Payload ProvisionsA simulated payloadshall be installed in Type II CBC. The Type II CBC/Trailercombination shall be tested in accordance with 4.3.16.1 and.4.3.16.4. The Type II CBC shall also be tested in accordancewith 4.3.16.5. Failure to meet the requirements of 3.
45、4.2 shallconstitute failure of this test.4.3.14 Personnel Door Loads.4.3.14.1 Personnel Door StructureThe door shall have a200 lb static load applied parallel to the hinge line, along thedoor edge opposite the hinge, with the door open 90 degrees.After 10 minutes the load shall be removed and the do
46、orexamined. Failure to meet the requirements of 3.4.3.1 shallconstitute failure of this test.4.3.14.2 Door StopThe door shall be in the open positionheld by the door stop mechanism. A load, equal to 10 lbs/ft2times the largest surface area of the door, shall be appliednormal to the doors surface. Th
47、e load shall be applied at themidpoint of the edge of the door, opposite the hinge, for one (1)minute. The load shall be removed and reapplied to the door atthe same point, in the opposite direction, for one (1) minute.Failure to meet the requirements of 3.4.3.2 shall constitute afailure of this tes
48、t.4.3.15 Surface Impact ResistanceEach type of roof andwall construction found on the completed Type II CBC shall besubjected to an impact from a 30-lb steel cylinder. The cylindershall be 3.00 in. in diameter with a hemispherical end. Thecylinder shall be dropped from a height of 30.00 in. onto the
49、exterior surface of the roof and from a height of 16 inches ontothe exterior surfaces of the walls. The cylinder shall be orientedand dropped vertically so that the center of the hemisphericalend of the cylinder strikes the center of the designated test area.The test area shall be oriented horizontally. The cylinder shallnot be permitted to re-impact the test area after the first impact.The Type II CBCs interior and exterior surfaces shall bevisually examined for compliance with 3.4.4. There shall be nofractures on any surface. There shall be no dents on t
