1、Designation: F2220 11An American National StandardStandard Specification forHeadforms1This standard is issued under the fixed designation F2220; 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
2、 parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.INTRODUCTIONThis specification identifies the headforms used for testing protective headgear in individual ASTMInternational test methods and performance st
3、andards (standard specifications). This specification wasclosely based on the ISO DIS 6220 that is no longer available (having been replaced by EN 960). Itis not possible forASTM International protective headgear standards to reference EN 960 because thisstandard makes no provisions for ASTM Interna
4、tional impact headforms.1. Scope1.1 This standard specifies the materials, sizing, and manu-facturing details of test headforms for use in the testing ofprotective headgear. Details of the exterior dimension of theheadforms are included.1.2 The values stated in SI units are to be regarded asstandard
5、. No other units of measurement are included in thisstandard.2. Referenced Documents2.1 ASTM Standards:2B92/B92M Specification for Unalloyed Magnesium Ingotand Stick For Remelting2.2 Other Standards:EN 960 Headforms for Use in the Testing of ProtectiveHelmets3. Terminology3.1 Definitions:3.1.1 basic
6、 plane, nan anatomical plane that includes thesuperior rim of the external auditory meatuses (upper edge ofthe external openings of the ear) and the inferior margin of theorbit (the lowest point of the floor of the eye socket) (see Figs.1 and 2).3.1.2 coronal plane, nan anatomical plane perpendicula
7、rto both the basic and midsagittal planes and passing throughthe superior rims of the right and left external auditorymeatuses. The transverse plane corresponds to the coronalplane (see Figs. 1 and 2).3.1.3 impact headforms, nheadforms used for impacttesting of protective headgear. Impact headforms
8、shall conformto the external dimension defined in this specification. Theseheadforms shall meet the material, dimensions, mass, andcenter of gravity requirements of this specification. Theseheadforms shall include surface markings corresponding to thebasic, coronal, midsagittal, and reference planes
9、.3.1.4 midsagittal plane, nan anatomical plane perpen-dicular to the basic plane and containing the midpoint of the1This specification is under the jurisdiction of ASTM Committee F08 on SportsEquipment and Facilities and is the direct responsibility of Subcommittee F08.53 onHeadgear and Helmets.Curr
10、ent edition approved April 1, 2011. Published May 2011. Originallyapproved in 2002. Last previous edition approved in 2009 as F2220 02 (2009).DOI: 10.1520/F2220-11.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Boo
11、k of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.FIG. 1 Anatomical Planes1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.line connecting the notches of the right and left inferior
12、 orbitalridges and the midpoint of the line connecting the superior rimsof the right and left external auditory meatuses (see Figs. 1 and2).3.1.5 other (reference) headforms, nheadforms used forother testing, other than impact, of protective headgear. Theyshall conform to the external dimension requ
13、irements of eachparticular headform size, as specified in this specification.Reference headforms shall be made of material of sufficientstrength and stiffness to maintain their geometry during testing.Full-chin headforms will be used as necessary. Referenceheadforms shall include surface markings co
14、rresponding to thebasic, coronal, midsagittal, and reference planes and the visionpoints.3.1.6 reference plane, na plane marked on the headformsat a specified distance above and parallel to the basic plane (seeFig. 2).4. Classification4.1 This specification identifies the requirements for six testhe
15、adform sizes: A, C, E, J, M, and O. The size codes used forheadforms relate to the nominal inside circumference ofhelmets (see Table 1). The nominal inside circumferencevalues refer to the internal circumference of the helmetmeasured at a datum level 12.7 mm above the reference plane.5. Dimensions5.
16、1 Datum LevelsAll datum levels are quoted relative tothe reference plane (“0” level) and are given in mm.5.2 DimensionsThe external dimensions that the head-forms must conform to are identified in Annex A1 and AnnexA2. The headforms shall be symmetrical about the midsagittalplane. Internal geometry
17、may be defined to satisfy the require-ments of the individual test specifications. The resultingheadform must still comply with the other requirements of thisspecification.5.3 TolerancesThe tolerance on all linear dimensions is60.25 mm.6. Impact Headforms6.1 Materials and ManufactureThe impact headf
18、ormsshall be made of K1A-F magnesium (nominal composition0.7 % Zr, balance Mg; Specification B92/B92M, Grade9980A).6.2 External DimensionsImpact headforms shall complywith the exterior dimensions given in Annex A1. The polarcoordinates of the horizontal half-sections at each datum levelabove the ref
19、erence plane are given.6.3 Performance RequirementsThe impact headformsshall not have resonant frequencies below 2000 Hz.6.4 MassThe total mass of the drop assembly (includingthe instrumented headform and supporting assembly) shall bedescribed in the specific test method for evaluating protectivehea
20、dgear. The mass of the impact headform may be adjusted toaccommodate the specific test method requirements.6.5 Center of GravityThe center of gravity of the impactheadform shall lie at a point on the central vertical axis, 12.7mm above the reference plane.6.6 Product MarkingAll impact headforms shal
21、l bemarked with:6.6.1 Headform size;6.6.2 Basic plane;6.6.3 Reference plane; and6.6.4 Midsagittal (longitudinal) and coronal (transverse)planes through the vertical axis.7. Other (Reference) Headforms7.1 Materials and ManufactureOther headforms shall bemade of material of sufficient strength and sti
22、ffness to maintaintheir geometry during testing.7.2 External DimensionsOther headforms shall complywith the external dimensions given in Annex A1 and AnnexA2. The polar coordinates of the horizontal half-sections ateach datum level are given.7.2.1 Product MarkingAll headforms shall be markedwith:7.2
23、.1.1 Headform size;7.2.1.2 Basic plane;7.2.1.3 Reference plane;7.2.1.4 Midsagittal (longitudinal) and coronal (transverse)planes through the vertical axis; and7.2.1.5 Two points located on the basic plane equally spaced31 mm each side of the point defined by the intersection of thebasic and midsagit
24、tal planes at the front of the headform.8. Keywords8.1 headform(s); helmet(s); protective headgearFIG. 2 Impact HeadformBasic, Reference, Midsagittal PlanesTABLE 1 Measurement for Headform SizeHeadform LabelSize Designation(circumference, mm)Nominal InsideCircumferenceof Helmet (mm)A 495 500C 515 52
25、0E 535 540J 575 570M 605 600O 625 620F2220 112ANNEXES(Mandatory Information)A1. HEADFORM DATA ABOVE THE REFERENCE PLANEA1.1FIG. A1.1 Headform Datum Levels Above the Basic PlaneF2220 113FIG. A1.2 Horizontal Half-Sections at Datum LevelsF2220 114TABLE A1.1 Polar Coordinates of Horizontal Half-Sections
26、 for Size A HeadformAngle0Front15 30 45 60 75 90 105 120 135 150 165180BackHeight abovereference plane (mm)Radius (mm)0.0 88.0 86.5 83.0 75.5 70.0 67.0 66.5 69.5 73.5 78.5 84.0 87.0 88.020.0 85.5 84.5 82.5 75.5 70.0 67.0 66.5 69.5 73.5 78.5 84.0 87.0 87.040.0 80.0 79.5 79.0 72.0 67.5 65.0 64.5 67.0
27、71.0 76.0 80.5 82.0 81.550.0 75.0 75.0 74.5 68.5 63.5 61.0 60.5 63.5 67.0 72.0 76.0 77.0 77.060.0 68.0 68.0 67.5 62.5 57.5 55.5 55.0 58.0 61.5 66.0 70.0 70.0 70.570.0 56.0 56.0 56.5 53.0 49.5 47.0 47.0 49.0 53.0 57.0 61.5 61.0 61.080.0 37.0 37.5 37.0 36.5 35.5 34.0 34.0 36.0 39.5 44.5 49.0 49.0 48.5
28、85.0 23.0 24.0 23.0 22.0 22.0 23.0 24.0 24.5 29.5 33.5 36.0 36.5 37.0Dimension H: 89.7 mm, Depth to Basic Plane: -24.0 mm.TABLE A1.2 Polar Coordinates of Horizontal Half-Sections for Size C HeadformAngle0Front15 30 45 60 75 90 105 120 135 150 165180BackHeight abovereference plane (mm)Radius (mm)0.0
29、91.5 89.5 86.0 79.0 72.5 70.0 69.5 72.5 77.0 82.0 87.5 90.5 91.520.0 90.0 88.0 85.5 79.0 72.5 70.0 69.5 72.5 77.0 82.0 87.0 90.0 90.540.0 84.5 83.0 82.0 76.0 70.0 68.0 68.0 70.5 74.5 79.5 83.5 85.5 86.550.0 77.0 77.0 76.0 70.0 65.5 63.0 62.5 65.0 68.5 73.5 77.5 78.5 78.560.0 69.5 70.0 70.0 64.0 59.0
30、 57.0 57.5 59.5 62.5 67.5 72.0 72.0 72.070.0 59.5 58.5 59.0 54.0 50.0 48.0 48.0 50.5 54.0 59.0 63.5 64.0 63.580.0 41.5 42.0 42.0 39.0 37.5 37.0 37.0 39.0 42.0 47.0 51.5 51.5 51.085.0 28.0 28.5 29.0 28.0 26.5 27.0 27.5 29.0 32.5 37.0 41.5 41.0 41.590.0 7.0 6.5 7.0 7.5 8.0 9.5 11.5 13.5 17.0 19.5 23.0
31、 22.5 21.0Dimension H: 91.2 mm, Depth to Basic Plane: -25.0 mm.TABLE A1.3 Polar Coordinates of Horizontal Half-Sections for Size E HeadformAngle0Front15 30 45 60 75 90 105 120 135 150 165180BackHeight abovereference plane (mm)Radius (mm)0.0 94.5 93.0 90.0 82.0 76.5 73.5 79.0 76.0 80.0 85.0 91.0 94.0
32、 94.520.0 92.5 91.5 89.0 82.0 76.5 73.5 79.0 76.0 80.0 85.0 90.5 93.5 94.040.0 87.0 87.5 85.0 79.5 74.0 71.0 71.5 74.0 77.5 82.5 88.0 89.0 89.050.0 82.5 83.0 81.0 76.0 71.0 68.0 68.0 70.5 74.0 79.5 83.5 84.5 84.560.0 76.5 76.5 75.5 71.0 66.5 63.5 63.5 66.0 69.5 74.0 78.5 79.0 79.070.0 66.5 66.5 66.5
33、 63.0 59.0 56.5 56.5 58.5 62.0 66.5 70.5 71.0 71.080.0 52.0 52.0 52.0 50.0 47.5 46.0 46.5 48.0 51.0 56.0 59.5 60.0 60.085.0 41.5 42.5 41.5 40.5 39.5 39.0 39.5 41.0 44.0 48.0 51.5 58.0 52.090.0 28.0 28.0 28.5 28.5 28.5 29.0 30.0 31.0 34.0 37.5 41.5 42.0 42.095.0 10.0 10.0 10.0 10.0 10.0 10.5 11.0 12.
34、0 13.5 15.0 16.0 16.0 16.0Dimension H: 96.0 mm, Depth to Basic Plane: -26.0 mm.F2220 115TABLE A1.4 Polar Coordinates of Horizontal Half-Sections for Size J HeadformAngle0Front15 30 45 60 75 90 105 120 135 150 165180BackHeight abovereference plane (mm)Radius (mm)0.0 101.0 99.5 95.5 87.5 82.5 79.5 79.
35、5 82.0 86.0 92.0 97.0 100.5 101.020.0 99.0 97.0 93.5 87.5 82.0 79.5 79.5 82.0 86.0 92.0 96.5 99.5 100.540.0 93.0 92.5 90.0 85.5 80.0 77.5 77.0 80.5 84.0 89.0 93.0 95.5 95.550.0 90.0 89.0 87.0 83.0 77.0 74.5 75.0 77.5 81.0 86.0 90.0 91.5 91.560.0 84.0 83.0 81.5 77.0 73.0 70.0 71.0 73.0 77.0 81.0 85.5
36、 87.0 87.070.0 76.0 75.5 74.0 71.0 67.0 65.0 65.5 67.0 71.5 75.0 79.0 80.0 80.080.0 65.0 65.0 64.0 61.0 58.5 56.0 57.0 59.0 62.5 66.5 69.5 71.0 71.085.0 58.0 58.0 56.5 54.5 52.0 50.0 51.0 52.5 56.6 60.5 64.5 65.0 65.090.0 48.5 48.0 47.0 45.5 43.5 43.0 44.0 46.0 49.5 54.0 57.0 58.5 58.595.0 37.0 36.5
37、 35.0 34.0 33.0 33.5 34.5 36.0 39.0 43.0 46.5 47.0 47.0100.0 20.0 20.0 19.5 19.0 18.5 18.5 19.0 20.5 23.5 27.5 31.0 31.5 31.0Dimension H: 102.5 mm, Depth to Basic Plane: -27.5 mm.TABLE A1.5 Polar Coordinates of Horizontal Half-Sections for Size M HeadformAngle0Front15 30 45 60 75 90 105 120 135 150
38、165180BackHeight abovereference plane (mm)Radius (mm)0.0 106.0 104.0 101.0 93.5 87.0 84.5 84.0 86.5 91.0 96.0 102.0 106.0 106.020.0 103.5 102.5 99.5 93.0 87.0 84.5 84.0 86.5 91.0 96.0 101.5 105.5 105.540.0 99.0 98.5 96.5 90.5 85.0 82.5 82.0 84.0 88.5 93.5 96.0 100.5 100.550.0 95.5 94.5 93.0 87.5 82.
39、0 79.5 79.0 81.5 85.5 90.0 93.0 97.0 97.060.0 89.5 89.5 88.0 83.0 77.5 75.0 75.0 77.0 81.5 86.5 91.0 92.0 92.070.0 82.0 82.0 81.0 77.0 72.0 69.5 69.5 71.5 75.5 81.0 84.0 85.5 85.580.0 71.5 71.5 71.0 68.0 64.0 61.5 61.5 64.0 67.0 72.0 76.0 77.0 77.085.0 64.5 64.5 64.0 61.5 59.0 57.0 57.0 58.5 61.5 66
40、.5 71.0 72.0 72.090.0 56.5 56.5 56.5 55.0 53.0 51.5 51.5 53.0 56.0 60.5 64.5 66.0 66.095.0 46.5 46.5 47.0 46.5 45.5 44.0 44.0 45.5 48.5 53.0 57.5 59.0 58.5100.0 32.0 32.0 32.5 33.0 34.0 34.0 34.5 35.5 38.5 43.0 46.5 48.5 48.0105.0 12.0 12.0 13.0 14.0 15.0 16.0 17.5 19.5 21.0 25.0 29.5 30.0 30.0Dimen
41、sion H: 107.0 mm, Depth to Basic Plane: -29.0 mm.TABLE A1.6 Polar Coordinates of Horizontal Half-Sections for Size O HeadformAngle0Front15 30 45 60 75 90 105 120 135 150 165180BackHeight abovereference plane (mm)Radius (mm)0.0 108.5 107.5 103.5 96.0 90.5 87.5 87.0 90.0 94.5 100.0 105.0 108.0 108.520
42、.0 106.5 105.5 103.0 96.0 90.5 87.5 87.0 90.0 94.5 100.0 105.0 108.0 107.540.0 101.5 101.5 100.5 93.5 88.5 85.5 85.5 88.5 92.5 98.0 103.0 103.0 103.550.0 98.0 97.5 97.0 90.5 85.5 82.5 83.0 85.5 90.0 95.0 100.0 100.0 100.560.0 93.0 93.0 92.0 88.0 81.0 78.5 78.5 81.5 85.5 90.5 95.0 95.0 95.070.0 86.5
43、86.5 86.0 80.5 70.0 73.5 73.5 76.0 80.0 85.0 89.0 89.0 89.080.0 76.0 76.5 76.5 72.5 68.0 66.0 66.5 69.0 72.5 77.0 81.0 80.5 80.585.0 69.5 69.5 70.0 67.5 62.5 61.5 62.0 64.5 67.5 72.5 76.0 76.0 76.090.0 62.5 62.5 62.5 60.0 57.0 55.5 56.5 58.5 62.0 67.0 70.0 70.0 70.095.0 54.0 54.0 54.0 52.5 50.0 49.0
44、 49.5 51.5 55.5 60.5 64.0 63.5 64.0100.0 42.0 41.5 41.5 41.0 41.0 41.5 41.5 43.5 47.0 52.0 55.5 55.5 54.5105.0 27.5 27.0 26.5 27.0 27.5 28.0 27.5 29.0 31.5 36.0 37.5 38.0 38.5Dimension H: 110.0 mm, Depth to Basic Plane: -30.0 mm.F2220 116A2. HEADFORM DATA BELOW THE REFERENCE PLANEA2.1FIG. A2.1 Headf
45、orm Datum Levels Below the Basic PlaneF2220 117FIG. A2.2 Horizontal Half-Sections at Datum LevelsF2220 118TABLE A2.1 Polar Coordinates of Horizontal Half-Sections for Size A HeadformAngle0Front15 30 45 60 75 90 105 120 135 150 165180BackDepth belowreference plane (mm)Radius (mm)0.0 88.0 86.5 83.0 75
46、.5 70.0 67.0 66.5 69.5 73.5 78.5 84.0 87.0 88.0-11.1 88.0 86.5 82.5 74.5 68.5 66.0 66.0 68.5 72.0 77.0 81.5 84.5 85.0-19.9 88.0 88.0 82.5 74.0 66.5 63.0 61.5 64.5 67.5 72.5 77.0 80.0 80.5-30.6 88.0 89.5 81.0 71.5 65.0 62.0 56.0 58.0 61.5 66.5 71.0 73.5 74.0-39.4 88.0 89.5 79.0 69.5 63.0 60.0 54.0 55
47、.0 58.0 61.5 65.0 67.5 67.0-52.5 88.0 89.5 77.0 67.0 60.5 54.0 51.5 52.0 53.5 56.5 59.0 60.0 58.5-65.6 88.0 89.5 75.5 65.0 58.5 52.5 50.5 51.0 51.5 52.5 53.0 54.0 54.5-74.4 88.0 89.5 73.5 62.5 58.0 51.0 50.5 51.0 51.5 52.5 53.0 54.0 54.5-78.8 88.0 89.5 71.5 62.5 49.5 50.0 50.5 51.0 51.5 52.5 53.0 54
48、.0 54.5-84.4 88.0 89.5 69.5 47.5 49.5 50.0 50.5 51.0 51.5 52.5 53.0 54.0 54.5-92.8 88.0 92.0 47.5 47.5 49.5 50.0 50.5 51.0 51.5 52.5 53.0 54.0 54.5-119.0 47.0 47.0 47.5 47.5 49.5 50.0 50.5 51.0 51.5 52.5 53.0 54.0 54.5Dimension 1: 11.1 mm, Depth to Basic Plane: -24.0 mm.TABLE A2.2 Polar Coordinates
49、of Horizontal Half-Sections for Size C HeadformAngle 0 15 30 45 60 75 90 105 120 135 150 165180BackDepth belowreference plane (mm)Radius (mm)0.0 91.5 89.5 86.0 79.0 72.5 70.0 69.5 72.5 77.0 82.0 87.5 90.5 91.5-11.5 91.5 89.5 85.5 77.0 71.0 68.5 68.5 71.0 74.5 80.0 84.5 87.5 88.0-20.6 91.5 91.0 85.5 76.5 69.0 65.5 64.0 66.5 70.0 75.5 80.0 83.0 83.5-31.8 91.5 92.5 84.0 74.0 67.0 64.5 58.0 60.5 64.0 69.0 73.5 76.0 76.5-40.8 91.5 92.5 81.5 71.5 65.5 62.0
