CFR
- Title 1 - General Provisions
- Title 2 - Grants and Agreements
- Title 3 - The President
- Title 4 - Accounts
- Title 5 - Administrative Personnel
- Title 6 - Domestic Security
- Title 7 - Agriculture
- Title 8 - Aliens and Nationality
- Title 9 - Animals and Animal Products
- Title 10 - Energy
- Title 11 - Federal Elections
- Title 12 - Banks and Banking
- Title 13 - Business Credit and Assistance
- Title 14 - Aeronautics and Space
- Title 15 - Commerce and Foreign Trade
- Title 16 - Commercial Practices
- Title 17 - Commodity and Securities Exchanges
- Title 18 - Conservation of Power and Water Resources
- Title 19 - Customs Duties
- Title 20 - Employees' Benefits
- Title 21 - Food and Drugs
- Title 22 - Foreign Relations
- Title 23 - Highways
- Title 24 - Housing and Urban Development
- Title 25 - Indians
- Title 26 - Internal Revenue
- Title 27 - Alcohol, Tobacco Products and Firearms
- Title 28 - Judicial Administration
- Title 29 - Labor
- Title 30 - Mineral Resources
- Title 31 - Money and Finance: Treasury
- Title 32 - National Defense
- Title 33 - Navigation and Navigable Waters
- Title 34 - Education
- Title 35 - Panama Canal
- Title 36 - Parks, Forests, and Public Property
- Title 37 - Patents, Trademarks, and Copyrights
- Title 38 - Pensions, Bonuses, and Veterans' Relief
- Title 39 - Postal Service
- Title 40 - Protection of Environment
- Title 41 - Public Contracts and Property Management
- Title 42 - Public Health
- Title 43 - Public Lands: Interior
- Title 44 - Emergency Management and Assistance
- Title 45 - Public Welfare
- Title 46 - Shipping
- Title 47 - Telecommunication
- Title 48 - Federal Acquisition Regulations System
- Title 49 - Transportation
- Title 50 - Wildlife and Fisheries
572.32—Head.
(a)
The head consists of the assembly shown in drawing 78051-61X, revision C, and conforms to each of the drawings subtended therein.
(b)
When the head (Drawing number 78051-61X, titled “head assembly—complete,” dated March 28, 1997 (Revision C) with six axis neck transducer structural replacement (Drawing number 78051-383X, Revision P, titled “Neck Transducer Structural Replacement,” dated November 1, 1995) is dropped from a height of 14.8 inches in accordance with paragraph (c) of this section, the peak resultant accelerations at the location of the accelerometers mounted in the head in accordance with § 572.36(c) shall not be less than 225g, and not more than 275g. The acceleration/time curve for the test shall be unimodal to the extent that oscillations occurring after the main acceleration pulse are less than ten percent (zero to peak) of the main pulse. The lateral acceleration vector shall not exceed 15g (zero to peak).
(c) Test procedure.
(1)
Soak the head assembly in a test environment at any temperature between 66 degrees F to 78 degrees F and at a relative humidity from 10% to 70% for a period of at least four hours prior to its application in a test.
(2)
Clean the head's skin surface and the surface of the impact plate with 1,1,1 Trichlorethane or equivalent.
(3)
Suspend the head, as shown in Figure 19, so that the lowest point on the forehead is 0.5 inches below the lowest point on the dummy's nose when the midsagittal plane is vertical.
Code of Federal Regulations
Code of Federal Regulations
33
(4)
Drop the head from the specified height by means that ensure instant release into a rigidly supported flat horizontal steel plate, which is 2 inches thick and 2 feet square. The plate shall have a clean, dry surface and any microfinish of not less than 8 microinches (rms) and not more than 80 microinches (rms).
[51 FR 26701, July 25, 1986, as amended at 62 FR 27514, May 20, 1997]
Tips