ASTM-F1645 › Historical Revision Information
Standard Test Method for Water Migration in Honeycomb Core Materials
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Scope
1.1 This test method covers the determination of water migration in honeycomb core materials.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text the inch-pound units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.
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.
Significance and Use
Water permeability is a fundamental physical property that can be used in conjunction with other properties to characterize honeycomb sandwich core materials. Migration testing can be used to characterize and compare the relative permeability of honeycomb core materials to water.
This test method provides a standard method of characterizing the rate of water migration within honeycomb sandwich core materials for design properties, material specifications, research and development applications, and quality assurance.
Factors that influence water migration rate characteristics of honeycomb sandwich core materials and shall therefore be reported include the following: core material, methods of material fabrication, core geometry (cell size), core thickness, core thickness uniformity, cell wall thickness, specimen geometry, specimen preparation, specimen conditioning, facing material, facing permeability, adhesive permeability, adhesive thickness, and methods of mass, volume, and water column height measurement.
Keywords
core; honeycomb; sandwich; water migration; ICS Number Code 91.100.99 (Other construction materials)
To find similar documents by ASTM Volume:
15.03 (Space Simulation; Aerospace and Aircraft; Composite Materials)
To find similar documents by classification:
91.100.99 (Other construction materials)
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Document Number
ASTM-F1645/F1645M-07
Revision Level
2007 EDITION
Status
Superseded
Modification Type
Revision with Designation Change
Publication Date
May 1, 2007
Document Type
Test Method
Page Count
2 pages
Committee Number
D30.09