1、Designation: F2220 14F2220 15 An 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
2、number in 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 individualASTMInternational test methods and perfor
3、mance standards (standard specifications). This specification wasclosely based on ISO DIS 6220, which was never published as an International Standard and is nolonger available. EN 960, a published standard, is also based on ISO DIS 6220 and has been used asa basis for this standard.1. Scope1.1 This
4、 standard specifies the materials, sizing, and manufacturing details of test headforms for use in the testing of protectiveheadgear. 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 inc
5、luded in this standard.2. Referenced Documents2.1 ASTM Standards:2B92/B92M Specification for Unalloyed Magnesium Ingot and Stick For Remelting2.2 Other Standards:EN 960 Headforms for Use in the Testing of Protective Helmets3. Terminology3.1 Definitions:3.1.1 basic plane, nan anatomical plane that in
6、cludes the superior rim of the external auditory meatuses (upper edge of theexternal openings of the ear) and the inferior margin of the orbit (the lowest point of the floor of the eye socket) (see Figs. 1 and2).3.1.2 coronal plane, nan anatomical plane perpendicular to both the basic and midsagitta
7、l planes and passing through thesuperior rims of the right and left external auditory meatuses. The transverse plane corresponds to the coronal plane (see Figs. 1and 2).3.1.3 impact headforms, nheadforms used for impact testing of protective headgear. Impact headforms shall conform to theexternal di
8、mension defined in this specification. These headforms shall meet the material, dimensions, mass, and center of gravityrequirements of this specification. These headforms shall include surface markings corresponding to the basic, coronal, midsagittal,and reference planes.3.1.4 midsagittal plane, nan
9、 anatomical plane perpendicular to the basic plane and containing the midpoint of the lineconnecting the notches of the right and left inferior orbital ridges and the midpoint of the line connecting the superior rims of theright and left external auditory meatuses (see Figs. 1 and 2).3.1.5 other (re
10、ference) headforms, nheadforms used for other testing, other than impact, of protective headgear. They shallconform to the external dimension requirements of each particular headform size, as specified in this specification. Referenceheadforms shall be made of material of sufficient strength and sti
11、ffness to maintain their geometry during testing. Full-chin1 This specification is under the jurisdiction of ASTM Committee F08 on Sports Equipment, Playing Surfaces, and Facilities and is the direct responsibility ofSubcommittee F08.53 on Headgear and Helmets.Current edition approved Nov. 1, 2014Ju
12、ne 1, 2015. Published December 2014August 2015. Originally approved in 2002. Last previous edition approved in 20122014as F2220 12.F2220 14. DOI: 10.1520/F2220-14.10.1520/F2220-15.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org.
13、 For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit ma
14、y 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 versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harb
15、or Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1headforms will be used as necessary. Reference headforms shall include surface markings corresponding to the basic, coronal,midsagittal, and reference planes and the vision points.planes.3.1.6 reference plane, na plane marked on
16、the headforms at a specified distance above and parallel to the basic plane (see Fig.2).4. Classification4.1 This specification identifies the requirements for six test headform sizes: F2220-A, F2220-C, F2220-E, F2220-J, F2220-M,and F2220-O.5. Dimensions5.1 Datum LevelsAll datum levels are quoted re
17、lative to the reference plane (“0” level) and are given in mm.5.2 DimensionsThe external dimensions that the headforms must conform to are identified in AnnexA1. The segment lengthsfrom the intersection of the coronal plane, midsagittal plane and the reference plane of the test headform to the inter
18、section of aFIG. 1 Anatomical PlanesFIG. 2 Impact HeadformBasic, Reference, Midsagittal PlanesF2220 152horizontal angle and a point at each datum level above the reference plane are given. The exact geometry of the external surfacemay be determined by a spline function or other curve fitting algorit
19、hm in order to produce a smooth and continuous outerheadform surface. The headforms shall be symmetrical about the midsagittal plane. Internal geometry may be defined to satisfythe requirements of the individual test specifications. The resulting headform must still comply with the other requirement
20、s of thisspecification.6. Impact Headforms6.1 Materials and ManufactureThe impact headforms shall be made of K1A-F magnesium (nominal composition 0.7 % Zr,balance Mg; Specification B92/B92M, Grade 9980A).6.2 Performance RequirementsThe impact headforms shall not have resonant frequencies below 2000
21、Hz.6.3 MassThe total mass of the drop assembly (including the instrumented headform and supporting assembly) shall bedescribed in the specific test method for evaluating protective headgear. The mass of the impact headform may be adjusted toaccommodate the specific test method requirements.6.4 Cente
22、r of GravityThe center of gravity of the impact headform shall lie at a point on the central vertical axis, 12.7 mmabove the reference plane.6.5 Product MarkingAll impact headforms shall be marked with:6.5.1 Headform size;6.5.2 Basic plane;6.5.3 Reference plane; and6.5.4 Midsagittal (longitudinal) a
23、nd coronal (transverse) planes through the vertical axis.7. Other (Reference) Headforms7.1 Materials and ManufactureOther headforms shall be made of material of sufficient strength and stiffness to maintain theirgeometry during testing.8. Keywords8.1 headform(s); helmet(s); protective headgearANNEX(
24、Mandatory Information)A1. HEADFORM DATAA1.1 Headform Data Above and Below the Reference PlaneA1.1.1 See Fig. A1.1 and Tables A1.1-A1.6.A1.2 Headform Data from Above the Reference Plane, Top ViewA1.2.1 See Fig. A1.2.A1.3 Headform Data from Below the Reference Plane, Bottom ViewA1.3.1 See Fig. A1.3.F2
25、220 153FIG. A1.1 Headform Datum Levels Above and Below the Reference Plane (see Tables A1.1-A1.6 for specific datum levels)F2220 154TABLE A1.1 External Dimensions for Full Headform Size F2220-ANOTE 1Angles in degrees, to be measured with an uncertainty of measurement not exceeding 0,20. Segment leng
26、ths degrees with a tolerance of0.5. Radii in millimetres, with a tolerance of 1.0 %. Datum levels with a tolerance of 0.5 mm.NOTE 2The jaw line full size headform shall have a jaw line which resembles the human jaw. This jaw line should be radiused along its length toeliminate any sharp edges. The b
27、ase of the neck shall be squared off perpendicular to the central vertical axis.NOTE 3Those data points which form the chin of the headform are permitted to exceed the published tolerance once a radius has been applied.F2220 - AAngle0Front15 30 45 60 75 90 105 120 135 150 165 180RearHeightAboveRefer
28、encePlane(mm)85 88.2 88.1 88.0 87.9 87.9 88.0 88.2 88.7 89.7 91.3 92.5 93.0 92.7HeightAboveReferencePlane(mm)85 88.2 88.1 88.0 87.9 87.9 88.0 88.2 88.7 89.7 91.3 92.5 93.0 92.780 88.2 88.3 88.4 88.0 87.2 86.8 86.9 87.7 89.2 91.4 93.5 93.4 93.270 89.8 90.0 89.9 88.0 85.7 84.6 84.5 85.8 87.9 90.6 93.1
29、 93.2 93.160 90.6 90.6 90.2 86.7 83.5 81.8 81.7 83.3 86.1 89.3 92.3 92.6 92.550 90.1 90.1 89.5 84.7 80.9 78.7 78.5 80.5 83.7 87.5 91.0 91.8 91.640 89.1 89.0 88.2 82.4 78.1 76.0 75.6 77.7 81.2 85.6 89.5 90.9 90.730 87.7 86.8 84.9 78.0 72.8 70.1 69.7 72.5 76.3 81.2 86.2 88.9 89.020 87.7 86.8 84.9 78.0
30、 72.8 70.1 69.7 72.5 76.3 81.2 86.2 88.9 89.020 88.0 86.5 83.0 75.5 70.0 67.0 66.5 69.5 73.5 78.5 84.0 87.0 88.0ReferencePlane 0 88.2 88.1 88.0 87.9 87.9 88.0 88.2 88.7 89.7 91.3 92.5 93.0 92.7ReferencePlane 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 88.0DepthBelowReferencePlane(m
31、m)-11.1 88.7 87.2 83.2 75.3 69.4 66.9 66.9 69.4 72.9 77.8 82.3 85.2 85.7-19.9 90.2 90.2 84.9 76.6 69.4 66.1 64.6 67.5 70.4 75.2 79.5 82.4 82.9-30.6 93.2 94.6 86.6 77.8 71.8 69.1 63.8 65.6 68.7 73.2 77.3 79.6 80.1-39.4 96.4 97.8 88.3 79.9 74.3 71.8 66.8 67.7 70.1 73.0 76.0 78.2 77.7-52.5 102.5 103.8
32、93.2 85.1 80.1 75.3 73.5 73.9 75.0 77.1 79.0 79.7 78.6-65.6 109.8 111.0 100.0 92.3 87.9 84.0 82.8 83.1 83.4 84.0 84.3 85.0 85.3-74.4 115.2 116.4 104.6 97.2 94.3 90.2 89.9 90.2 90.5 91.1 91.3 91.9 92.2-78.8 118.1 119.2 106.4 100.6 93.1 93.3 93.6 93.9 94.1 94.7 95.0 95.5 95.8-84.4 121.9 123.0 109.3 96
33、.8 97.8 98.1 98.4 98.6 98.9 99.4 99.7 100.2 100.5-92.8 127.9 130.7 104.3 104.3 105.2 105.4 105.7 105.9 106.1 106.6 106.9 107.4 107.6-92.8 127.9 128.9 104.3 104.3 105.2 105.4 105.7 105.9 106.1 106.6 106.9 107.4 107.6-119.0 127.9 127.9 128.1 128.1 128.9 129.1 129.3 129.5 129.7 130.1 130.3 130.7 130.9D
34、istance from reference plane to top of headform: 89.7 mmDepth to basic plane: -24.0 mmF2220 155TABLE A1.2 External Dimensions for Full Headform Size F2220-CNOTE 1Angles in degrees, to be measured with an uncertainty of measurement not exceeding 0,20. Segment lengths degrees with a tolerance of0.5. R
35、adii in millimetres, with a tolerance of 1.0 %. Datum levels with a tolerance of 0.5 mm.NOTE 2The jaw line full size headform shall have a jaw line which resembles the human jaw. This jaw line should be radiused along its length toeliminate any sharp edges. The base of the neck shall be squared off
36、perpendicular to the central vertical axis.NOTE 3Those data points which form the chin of the headform are permitted to exceed the published tolerance once a radius has been applied.F2220 - CAngle0Front15 30 45 60 75 90 105 120 135 150 165 180RearHeightAboveReferencePlane(mm)90 92.3 92.2 92.0 91.9 9
37、1.9 91.9 92.1 92.5 93.2 94.1 94.9 95.2 95.185 92.1 92.0 91.8 91.4 90.9 90.7 90.9 91.7 93.0 94.8 96.2 96.4 96.380 92.4 92.4 92.3 91.4 90.2 89.7 89.9 90.9 92.6 95.0 96.6 96.9 96.970 93.8 93.5 93.1 91.0 88.5 87.4 87.6 88.9 91.3 94.3 96.3 96.9 96.960 94.2 93.7 93.0 89.8 86.3 84.6 84.6 86.3 89.3 92.8 95.
38、3 96.2 96.350 93.8 93.1 92.2 87.9 83.6 81.5 81.4 83.5 86.9 90.8 93.9 95.1 95.540 93.1 92.1 90.8 85.7 80.7 78.6 78.6 80.7 84.2 88.7 92.4 94.1 94.920 91.8 90.1 87.8 81.5 75.4 72.9 72.4 75.4 79.6 84.5 89.1 91.9 92.7ReferencePlane 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 91.5DepthBe
39、lowReferencePlane(mm)-11.5 92.2 90.2 86.3 77.9 71.9 69.5 69.5 71.9 75.4 80.8 85.3 88.3 88.7-20.6 93.8 93.3 87.9 79.2 72.0 68.7 67.2 69.6 73.0 78.3 82.6 85.5 86.0-31.8 96.9 97.8 89.8 80.5 74.2 71.9 66.1 68.3 71.5 76.0 80.1 82.4 82.8-40.8 100.2 101.1 91.1 82.3 77.2 74.2 69.3 70.1 72.6 75.9 78.9 81.0 8
40、0.6-54.4 106.5 107.3 96.7 88.3 82.9 78.1 76.3 76.7 77.7 79.9 81.7 82.5 81.7-68 114.0 114.8 103.5 95.5 91.4 87.1 85.6 86.2 87.8 87.1 87.5 88.1 88.4-77.1 119.7 120.4 108.3 100.8 97.7 93.3 93.0 93.6 93.8 94.4 94.7 95.3 95.6-81.7 122.7 123.4 110.2 102.9 96.3 96.6 96.8 97.4 97.7 98.2 98.5 99.0 99.3-87.6
41、126.7 127.4 113.4 100.6 101.4 101.6 101.9 102.4 102.5 103.1 103.4 104.0 104.1-96.2 132.8 133.5 108.0 108.2 108.9 109.1 109.4 109.8 110.0 110.5 110.8 111.3 111.4-123.4 132.6 132.6 132.8 133.0 133.5 133.7 133.9 134.3 134.4 134.9 135.1 135.5 135.6Distance from reference plane to top of headform: 91.293
42、.0 mmDepth to basic plane: -25.0 mmTABLE A1.3 External Dimensions for Full Headform Size F2220-ENOTE 1Angles in degrees, to be measured with an uncertainty of measurement not exceeding 0,20. Segment lengths degrees with a tolerance of0.5. Radii in millimetres, with a tolerance of 1.0 %. Datum levels
43、 with a tolerance of 0.5 mm.NOTE 2The jaw line full size headform shall have a jaw line which resembles the human jaw. This jaw line should be radiused along its length toeliminate any sharp edges. The base of the neck shall be squared off perpendicular to the central vertical axis.NOTE 3Those data
44、points which form the chin of the headform are permitted to exceed the published tolerance once a radius has been applied.F2220 - EAngle0Front15 30 45 60 75 90 105 120 135 150 165 180RearHeightAboveReferencePlane(mm)95 95.5 95.5 95.5 95.5 95.5 95.6 95.7 95.9 96.1 96.3 96.4 96.4 96.490 94.4 94.4 94.3
45、 94.3 94.4 94.5 94.7 95.2 96.1 97.5 98.8 99.2 99.185 94.5 94.6 94.7 94.4 93.7 93.5 93.7 94.4 95.6 97.7 99.5 99.9 99.880 95.3 95.4 95.5 94.5 93.1 92.5 92.7 93.7 95.1 97.6 99.7 100.1 100.070 96.8 97.0 96.4 94.2 91.5 90.2 90.2 91.5 93.7 96.8 99.5 100.0 99.860 97.1 97.3 96.2 92.9 89.4 87.4 87.3 89.0 91.
46、8 95.3 98.7 99.2 99.150 96.5 96.8 95.3 91.0 86.8 84.4 84.2 86.2 89.4 93.4 97.5 98.2 98.240 95.7 95.8 93.9 88.8 84.2 81.3 81.6 83.8 86.9 91.4 96.3 97.3 97.320 94.5 93.6 91.2 84.6 79.1 76.2 76.0 78.7 82.5 87.4 92.8 95.3 95.7ReferencePlane 0 94.5 93.0 90.0 82.0 76.5 73.5 73.0 76.0 80.0 85.0 91.0 94.0 9
47、4.5DepthBelowReferencePlane(mm)-11.9 95.2 93.8 89.3 80.4 74.0 71.5 71.5 74.0 77.9 83.4 87.8 91.3 91.8-21.3 96.9 96.4 91.0 82.3 74.1 70.8 69.4 72.2 75.1 80.4 85.2 88.1 88.6-32.8 100.0 101.0 92.5 83.2 76.9 74.1 68.4 70.6 73.7 78.2 82.8 85.1 85.5-42.1 103.5 104.4 94.4 85.1 79.6 76.6 71.3 72.5 74.9 78.3
48、 81.7 83.4 83.0-56.2 109.9 110.8 99.8 90.9 85.5 80.4 79.0 79.0 80.0 82.6 84.4 85.2 84.4-70.2 117.7 118.5 106.8 98.8 94.0 89.8 88.6 89.2 89.5 89.8 90.1 90.7 91.1-79.6 123.6 124.3 111.8 104.0 100.9 96.5 96.2 96.8 97.0 97.3 97.6 98.2 98.5-84.3 126.6 127.4 113.8 106.1 99.6 99.8 100.1 100.7 100.9 101.2 1
49、01.5 102.0 102.3-90.4 130.8 131.5 117.1 103.8 104.8 105.0 105.3 105.8 106.1 106.3 106.6 107.1 107.4-99.3 137.1 139.9 111.4 111.6 112.6 112.8 113.0 113.5 113.8 114.0 114.2 114.7 115.0-99.3 137.1 137.8 111.4 111.6 112.6 112.8 113.0 113.5 113.8 114.0 114.2 114.7 115.0-127.4 136.9 136.9 137.0 137.2 138.0 138.2 138.4 138.8 139.0 139.2 139.4 139.8 140.0Distance from reference plane to top of headform: 96.0 mmDepth to basic plane: -26.0 mmF2220 156TABLE A1.4 External Dimensions for Full Headform Size
