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Significance and Use
4.1 Products are exposed to complex dynamic stresses in the transportation environment. The determination of the resonant frequencies of the product may aid the packaging designer in determining the proper packaging system to provide adequate protection for the product, as well as providing an understanding of the complex interactions between the components of the product as they relate to expected transportation vibration inputs.
1.1 These test methods cover the determination of resonances of unpackaged products and components of unpackaged products by means of vertical linear motion at the surface on which the product is mounted for test. Two alternate test methods are presented:
Test Method A—Resonance Search Using Sinusoidal Vibration, and
Test Method B—Resonance Search Using Random Vibration.
Note 1: The two test methods are not necessarily equivalent and may not produce the same results. It is possible that tests using random vibration may be more representative of the transport environment and may be conducted more quickly than sine tests.
1.2 This information may be used to examine the response of products to vibration for product design purposes, or for the design of a container or interior package that will minimize transportation vibration inputs at these critical frequencies, when these products resonances are within the expected transportation environment frequency range. Since vibration damage is most likely to occur at product resonant frequencies, these resonances may be thought of as potential product fragility points.
1.3 Information obtained from the optional dwell test methods may be used to assess the fatigue characteristics of the resonating components and for product modification. This may become necessary if the response of a product would require design of an impractical or excessively costly shipping container.
1.4 These test methods do not necessarily simulate the vibration effects that the product will encounter in its operational or in-use environment. Other, more suitable test procedures should be used for this purpose.
1.5 Test levels given in these test methods represent the correlation of the best information currently available from research investigation and from experience in the use of these test methods. If more applicable or accurate data are available, they should be substituted.
1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. See Section 6 for specific precautionary statements.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D996 Terminology of Packaging and Distribution Environments
D4332 Practice for Conditioning Containers, Packages, or Packaging Components for Testing
D4728 Test Method for Random Vibration Testing of Shipping Containers
E122 Practice for Calculating Sample Size to Estimate, With Specified Precision, the Average for a Characteristic of a Lot or Process
Military StandardMIL-STD 810, Method 514 Vibration Available from Defense Printing Service Detachment Office, Bldg. 4D, NPM-DODSSP, 700 Robbins Ave., Philadelphia, PA 19111-5094.
ICS Number Code 19.060 (Mechanical testing)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM D3580-95(2015), Standard Test Methods for Vibration (Vertical Linear Motion) Test of Products, ASTM International, West Conshohocken, PA, 2015, www.astm.orgBack to Top