1、Designation:F222011F222012 An American National Standard Standard Specication for Headforms 1 This standard is issued under the xed designation F2220; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.Anumb
2、er in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval. INTRODUCTION ThisspecicationidentiestheheadformsusedfortestingprotectiveheadgearinindividualASTM Internationaltestmethodsandperformancestandards(stand
3、ardspecications).Thisspecicationwas closelybasedontheISODIS6220thatISODIS6220,whichwasneverpublishedasanInternational Standard and is no longer available (having been replaced by EN 960). It is not possible for ASTM International protective headgear standards to reference EN 960 because this standar
4、d makes no provisions forASTM International impact headforms.available. EN 960, a published standard, is also based on ISO DIS 6220 and has been used as a basis for this standard. 1. Scope 1.1 This standard species the materials, sizing, and manufacturing details of test headforms for use in the tes
5、ting of protective headgear. Details of the exterior dimension of the headforms are included. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 2. Referenced Documents 2.1 ASTM Standards: 2 B92/B92MSpecication for Unalloyed
6、 Magnesium Ingot and Stick For Remelting 2.2 Other Standards: EN 960Headforms for Use in the Testing of Protective Helmets 3. Terminology 3.1 Denitions: 3.1.1 basic plane, nan anatomical plane that includes the superior rim of the external auditory meatuses (upper edge of the external openings of th
7、e ear) and the inferior margin of the orbit (the lowest point of the oor of the eye socket) (see Figs. 1 and 2). 3.1.2 coronal plane, nan anatomical plane perpendicular to both the basic and midsagittal planes and passing through the superior rims of the right and left external auditory meatuses. Th
8、e transverse plane corresponds to the coronal plane (see Figs. 1 and 2). 3.1.3 impact headforms, nheadforms used for impact testing of protective headgear. Impact headforms shall conform to the external dimension dened in this specication.These headforms shall meet the material, dimensions, mass, an
9、d center of gravity requirementsofthisspecication.Theseheadformsshallincludesurfacemarkingscorrespondingtothebasic,coronal,midsagittal, and reference planes. 3.1.4 midsagittal plane, nan anatomical plane perpendicular to the basic plane and containing the midpoint of the line connecting the notches
10、of the right and left inferior orbital ridges and the midpoint of the line connecting the superior rims of the right and left external auditory meatuses (see Figs. 1 and 2). 1 This specication is under the jurisdiction of ASTM Committee F08 on Sports Equipment Equipment, Playing Surfaces, and Facili
11、ties and is the direct responsibility of Subcommittee F08.53 on Headgear and Helmets. Current edition approved April 1, 2011Nov. 1, 2012. Published May 2011January 2013. Originally approved in 2002. Last previous edition approved in 20092011 as F222002 (2009).F222011. DOI: 10.1520/F2220-11.10.1520/F
12、2220-12. 2 ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatserviceastm.org.ForAnnualBookofASTMStandards volume information, refer to the standards Document Summary page on the ASTM website. This document is not anASTM standard and is intended only to provide
13、 the user of anASTM standard an indication of what changes have been made to the previous version. Because it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version of the st
14、andard as published by ASTM is to be considered the official document. Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States 13.1.5 other (reference) headforms, nheadforms used for other testing, other than impact, of protective headgear. T
15、hey shall conform to the external dimension requirements of each particular headform size, as specied in this specication. Reference headforms shall be made of material of sufficient strength and stiffness to maintain their geometry during testing. Full-chin headforms will be used as necessary. Refe
16、rence headforms shall include surface markings corresponding to the basic, coronal, midsagittal, and reference planes and the vision points. 3.1.6 referenceplane,naplanemarkedontheheadformsataspecieddistanceaboveandparalleltothebasicplane(seeFig. 2). 4. Classication 4.1 This specication identies the
17、 requirements for six test headform sizes: A, C, E, J, M, and O. The size codes used for headforms relate to the nominal inside circumference of helmets (see Table 1). The nominal inside circumference values refer to the internal circumference of the helmet measured at a datum level 12.7 mm above th
18、e reference plane. FIG. 1Anatomical Planes FIG. 2Impact HeadformBasic, Reference, Midsagittal Planes F222012 25. Dimensions 5.1 Datum LevelsAll datum levels are quoted relative to the reference plane (0 level) and are given in mm. 5.2 DimensionsTheexternaldimensionsthattheheadformsmustconformtoareid
19、entiedinAnnexA1andAnnexA2Annex A1.Theheadformsshallbesymmetricalaboutthemidsagittalplane.Internalgeometrymaybedenedtosatisfytherequirements of the individual test specications. The resulting headform must still comply with the other requirements of this specication. 5.3 TolerancesThe tolerance on al
20、l linear dimensions is60.25 mm. 6. Impact Headforms 6.1 Materials and ManufactureThe impact headforms shall be made of K1A-F magnesium (nominal composition 0.7% Zr, balance Mg; Specication B92/B92M, Grade 9980A). 6.2 External DimensionsImpactheadformsshallcomplywiththeexteriordimensionsgiveninAnnexA
21、1.Thepolarspherical coordinates of the horizontal half-sections at each datum level above the reference plane are given. 6.3 Performance RequirementsThe impact headforms shall not have resonant frequencies below 2000 Hz. 6.4 MassThe total mass of the drop assembly (including the instrumented headfor
22、m and supporting assembly) shall be described in the specic test method for evaluating protective headgear. The mass of the impact headform may be adjusted to accommodate the specic test method requirements. 6.5 Center of GravityThe center of gravity of the impact headform shall lie at a point on th
23、e central vertical axis, 12.7 mm above the reference plane. 6.6 Product MarkingAll impact headforms shall be marked with: 6.6.1 Headform size; 6.6.2 Basic plane; 6.6.3 Reference plane; and 6.6.4 Midsagittal (longitudinal) and coronal (transverse) planes through the vertical axis. 7. Other (Reference
24、) Headforms 7.1 MaterialsandManufactureOtherheadformsshallbemadeofmaterialofsufficientstrengthandstiffnesstomaintaintheir geometry during testing. 7.2 ExternalDimensionsOtherheadformsshallcomplywiththeexternaldimensionsgiveninAnnexA1andAnnexA2Annex A1. The polarspherical coordinates of the horizonta
25、l half-sections at each datum level are given. 7.2.1 Product MarkingAll headforms shall be marked with: 7.2.1.1 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; and 7.2.1.5 Two points located on
26、 the basic plane equally spaced 31 mm each side of the point dened by the intersection of the basic and midsagittal planes at the front of the headform. 8. Keywords 8.1 headform(s); helmet(s); protective headgear TABLE 1 Measurement for Headform Size COLSPEC/colname=“col2“ align=“center“ Headform La
27、bel Size Designation (circumference, mm) Nominal Inside Circumference of Helmet (mm) A 495 500 A 495 500 C 515 520 E 535 540 E 535 540 J 575 570 J 575 570 M 605 600 M 605 600 O 625 620 O 625 620 F222012 3ANNEXESANNEX (Mandatory Information) A1. HEADFORM DATAABOVE THE REFERENCE PLANE A1.1 See Tables
28、A1.1-A1.6. TABLE A1.1 Polar Coordinates of Horizontal Half-Sections for Size A Headform Angle 0 Front 15 30 45 60 75 90 105 120 135 150 165 180 Back Height above reference 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 88.0 20.0 85.5 84.5 82.5 75.5 70.0 67.0 6
29、6.5 69.5 73.5 78.5 84.0 87.0 87.0 40.0 80.0 79.5 79.0 72.0 67.5 65.0 64.5 67.0 71.0 76.0 80.5 82.0 81.5 50.0 75.0 75.0 74.5 68.5 63.5 61.0 60.5 63.5 67.0 72.0 76.0 77.0 77.0 60.0 68.0 68.0 67.5 62.5 57.5 55.5 55.0 58.0 61.5 66.0 70.0 70.0 70.5 70.0 56.0 56.0 56.5 53.0 49.5 47.0 47.0 49.0 53.0 57.0 6
30、1.5 61.0 61.0 80.0 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 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 37.0 Dimension H: 89.7 mm, Depth to Basic Plane: -24.0 mm. TABLE A1.1 Spherical Coordinates for Full Headform Size 495 NOTE 1V = Vertical angle above o
31、r below the reference plane; H =Angle of vertical slice, measured in horizontal plane, from front of mid-sagittal plane. NOTE 2Angles in degrees, to be measured with an uncertainty of measurement not exceeding 0,20. Radii in millimetres, with a tolerance of 0,5 % and measured with an uncertainty of
32、measurement not exceeding 0,1 mm. NOTE 3The jaw line shall be radiused along its length with a nominal 5 mm radius. The base of the neck shall be squared off perpendicular to the central vertical axis. NOTE 4The surface corresponding to the radii shown in italics lies below the jaw line. 1 - 495 Ang
33、le H 0 15 30 45 60 75 90 105 120 135 150 165 180 Angle V above 90 89,3 89,3 89,3 89,3 89,3 89,3 89,3 89,3 89,3 89,3 89,3 89,3 89,3 80 88,2 88,0 88,0 88,1 88,3 88,7 88,8 89,1 89,8 90,1 90,8 90,9 90,8 70 87,7 87,7 87,7 87,7 87,5 87,4 87,6 88,4 89,8 91,1 92,1 92,4 92,3 60 88,5 88,5 88,6 87,6 86,2 85,3
34、85,6 86,9 88,8 91,3 93,0 93,2 93,2 50 89,8 89,8 89,8 87,2 84,3 82,6 82,6 84,4 87,0 90,4 93,1 93,2 93,2 40 90,4 90,3 90,1 85,8 81,4 79,0 78,9 81,1 84,4 88,7 92,3 92,4 92,5 30 89,8 89,6 88,8 83,1 77,8 74,9 74,7 77,2 81,3 86,1 90,5 91,3 91,5 20 88,4 87,8 86,2 79,7 73,8 70,8 70,6 73,4 77,6 82,9 88,2 89,
35、9 90,3 10 87,4 86,2 83,8 76,5 70,6 67,4 67,3 70,3 74,2 79,8 85,6 88,5 89,0 Reference Plane 0 87,8 86,1 82,7 75,2 69,5 66,4 66,2 69,0 73,1 78,4 83,8 87,2 87,8 Angle V Below 10 89,2 88,2 83,9 75,3 69,0 66,6 66,6 68,8 72,0 77,0 81,0 83,8 84,3 20 93,5 94,7 86,0 77,0 69,9 66,6 63,9 66,3 69,2 73,5 77,4 79
36、,8 80,4 30 101,4 102,9 89,8 79,4 73,3 70,5 64,1 65,8 68,9 73,0 76,5 78,3 77,7 40 114,7 116,2 98,5 86,5 78,9 72,4 68,6 69,3 71,8 74,9 77,3 78,4 77,4 46 126,5 128,2 104,5 92,8 84,8 76,6 73,7 74,3 76,0 78,4 79,9 80,8 80,5 50 122,5 123,7 108,4 96,8 90,4 81,9 78,7 79,5 80,7 82,6 83,7 84,7 84,9 52 119,3 1
37、20,4 108,5 98,6 93,7 85,0 81,8 82,7 83,8 85,5 86,5 87,6 88,1 55 114,9 116,0 107,0 99,0 93,7 89,2 87,5 88,6 89,6 91,2 92,1 93,4 94,2 60 108,6 109,5 105,0 98,1 99,6 99,7 100,2 101,8 103,0 104,7 105,7 107,5 108,5 65 113,2 115,1 111,9 113,4 117,4 117,5 118,8 120,6 122,1 124,2 125,4 127,3 128,3 F222012 4
38、TABLE A1.2 Polar Coordinates of Horizontal Half-Sections for Size C Headform Angle 0 Front 15 30 45 60 75 90 105 120 135 150 165 180 Back Height above reference 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 20.0 90.0 88.0 85.5 79.0 72.5 70.0 69.5 72.5 77
39、.0 82.0 87.0 90.0 90.5 40.0 84.5 83.0 82.0 76.0 70.0 68.0 68.0 70.5 74.5 79.5 83.5 85.5 86.5 50.0 77.0 77.0 76.0 70.0 65.5 63.0 62.5 65.0 68.5 73.5 77.5 78.5 78.5 60.0 69.5 70.0 70.0 64.0 59.0 57.0 57.5 59.5 62.5 67.5 72.0 72.0 72.0 70.0 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
40、.5 80.0 41.5 42.0 42.0 39.0 37.5 37.0 37.0 39.0 42.0 47.0 51.5 51.5 51.0 85.0 28.0 28.5 29.0 28.0 26.5 27.0 27.5 29.0 32.5 37.0 41.5 41.0 41.5 90.0 7.0 6.5 7.0 7.5 8.0 9.5 11.5 13.5 17.0 19.5 23.0 22.5 21.0 Dimension H: 91.2 mm, Depth to Basic Plane: -25.0 mm. TABLE A2.2 Polar Coordinates of Horizon
41、tal Half-Sections for Size C Headform Angle 0 15 30 45 60 75 90 105 120 135 150 165 180 Back Depth below reference 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 7
42、6.5 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 56.0 57.0 60.0 64.0 67.5 70.0 69.5 -54.4 91.5 92.5 80.0 69.5 62.5 56.0 53.5 54.0 55.5 58.5 61.0 62.0 61.0 -68.0 91.5 92.5 78.0 67.0 61.0 54.5 52
43、.0 53.0 55.5 54.5 55.0 56.0 56.5 -77.1 91.5 92.5 76.0 65.0 60.0 52.5 52.0 53.0 53.5 54.5 55.0 56.0 56.5 -81.7 91.5 92.5 74.0 62.5 51.0 51.5 52.0 53.0 53.5 54.5 55.0 56.0 56.5 -87.6 91.5 92.5 72.0 49.5 51.0 51.5 52.0 53.0 53.3 54.4 55.0 56.0 56.2 -96.2 91.5 92.5 49.0 49.5 51.0 51.5 52.0 53.0 53.3 54.
44、4 55.0 56.0 56.2 -123.4 48.5 48.5 49.0 49.5 51.0 51.5 52.0 53.0 53.3 54.4 55.0 56.0 56.2 Dimension 1: 11.5 mm, Depth to Basic Plane: -25.0 mm TABLE A1.2 Spherical Coordinates for Full Headform Size 515 NOTE 1V = Vertical angle above or below the reference plane; H =Angle of vertical slice, measured
45、in horizontal plane, from front of mid-sagittal plane. NOTE 2Angles in degrees, to be measured with an uncertainty of measurement not exceeding 0,20. Radii in millimetres, with a tolerance of 0,5 % and measured with an uncertainty of measurement not exceeding 0,1 mm. NOTE 3The jaw line shall be radi
46、used along its length with a nominal 5 mm radius. The base of the neck shall be squared off perpendicular to the central vertical axis. NOTE 4The surface corresponding to the radii shown in italics lies below the jaw line. 1 - 515 Angle H 0 15 30 45 60 75 90 105 120 135 150 165 180 Angle V above 90
47、92,5 92,5 92,5 92,5 92,5 92,5 92,5 92,5 92,5 92,5 92,5 92,5 92,5 80 91,4 91,2 91,2 91,3 91,6 92,0 92,0 92,4 93,1 93,4 94,0 94,1 94,1 70 90,9 90,9 90,9 90,9 90,7 90,6 90,8 91,6 93,0 94,3 95,4 95,6 95,6 60 91,7 91,7 91,7 90,8 89,5 88,6 88,8 90,1 92,0 94,5 96,3 96,5 96,4 50 93,0 93,0 93,0 90,4 87,5 85,
48、8 85,8 87,7 90,3 93,7 96,4 96,4 96,4 40 93,6 93,5 93,3 89,0 84,7 82,3 82,2 84,4 87,7 91,9 95,5 95,7 95,7 30 93,0 92,8 92,0 86,4 81,0 81,0 78,2 78,0 78,0 80,5 84,6 89,3 94,7 20 91,6 91,0 89,5 83,0 77,1 74,1 73,9 76,7 80,9 86,2 91,4 93,1 93,5 10 90,6 89,4 87,1 79,8 73,9 70,8 70,6 73,6 77,5 83,1 88,9 9
49、1,7 92,3 Reference Plane 0 91,1 89,4 86,0 78,4 72,7 69,7 69,4 72,1 76,3 81,6 87,0 90,4 91,1 Angle V Below 10 92,5 91,5 86,9 78,0 71,4 69,0 69,1 71,2 74,6 79,7 83,9 86,8 87,3 20 96,9 98,1 89,1 79,7 72,4 69,0 66,2 68,7 71,7 76,2 80,2 82,7 83,3 30 105,2 106,6 93,0 82,3 75,9 73,0 66,5 68,2 71,4 75,6 79,3 81,1 80,5 40 118,9 120,4 102,1 89,6 81,7 75,1 71,1 71,8 74,3 77,6 80,0 81,2 80,2 46 131,1 132,8 108,2 96,1 87,8 79,3 76,4 77,1 78,7 81,2 82,8 83,7 83,3 50 126,7 127,6 112,3 100,3 93,6 84,7
