Insulation, Compressibility and Absorbency of Dry Suit Undergarments.

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Insulation, Compressibility and Absorbency of Dry Suit Undergarments.

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dc.contributor.author Sterba, JA
dc.contributor.author Hanson, RS
dc.contributor.author Stiglich, JF
dc.date.accessioned 2007-08-23T15:09:40Z
dc.date.available 2007-08-23T15:09:40Z
dc.date.issued 1989
dc.identifier.citation ADA215944 en
dc.identifier.govdoc ADA215944
dc.identifier.govdoc NEDU-10-89
dc.identifier.uri http://archive.rubicon-foundation.org/4867
dc.description Citation Status: Active; Citation Classification: Unclassified; Title Classification: Unclassified; Report Classification: Unclassified; Identifier Classification: Unclassified; Abstract Classification: Unclassified; Distribution Limitation(s): 01 - APPROVED FOR PUBLIC RELEASE; Information provided by the Department of Defense and the Defense Technical Information Center (http://www.dtic.mil/) is considered public information and may be distributed or copied unless otherwise specified. Use of appropriate byline/photo/image credits is requested. en
dc.description.abstract Recent selection of new undergarments (U/G) for cold water diving has been based on anecdotal reports. Previous studies revealed hydrophobic microfibrous material (Thinsulate) to be superior in both insulation when wet and compressibility compared to open-cell foam. The objectives of this study included comparing Thinsulate against the new U/G materials in a controlled, unmanned study. After preliminary testing of 39 U/G composites, nine U/G were chosen: four using arctic fleece, radiant barrier and both Thinsulate and polyester battings from Defense Marketing Consultants (DMC), four using Thinsulate M-400 and M-600 from Diving Unlimited International (DUI) and the Flectalon U/G composite from Arktis Outdoor Products. Dry U/G per unit thickness showed few differences. Saturated with water, the superior U/g, per se, were Flectalon, DUI M-600 and one DMC U/G using Dupont Dacron-II batting. The superior wet U/G, per unit thickness, included the above and M-400 DUI U/G. In conclusion, rating compressibility, absorbency and insulation (wet), the superior U/G included Flectalon and DUI U/G, M-400 and M-600 weights. DMC U/G were ranked next, primarily due to high absorbency. The DMC radiant barrier did not significantly affect insulation by contributing any reflected radiant energy based upon the small temperature gradient between skin and water. Underwater clothing thermal conductivity; Underclothes thermal insulation. (edc) en
dc.description.sponsorship US NAVY en
dc.format.extent 1408832 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.publisher NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FLA en
dc.subject THERMAL INSULATION en
dc.subject UNDERWATER CLOTHING en
dc.subject UNDERWEAR en
dc.subject ABSORPTION en
dc.subject ARCTIC REGIONS en
dc.subject BARRIERS en
dc.subject COMPARISON en
dc.subject COMPRESSIVE PROPERTIES en
dc.subject CONTROL en
dc.subject DACRON en
dc.subject DIVERS en
dc.subject ENERGY en
dc.subject FOAM en
dc.subject HYDROPHOBIC PROPERTIES en
dc.subject LOW TEMPERATURE en
dc.subject POLYESTER PLASTICS en
dc.subject SATURATION en
dc.subject THERMAL RADIATION en
dc.subject RATINGS en
dc.subject REFLECTION en
dc.subject SELECTION en
dc.subject TEMPERATURE GRADIENTS en
dc.subject THERMAL CONDUCTIVITY en
dc.subject THICKNESS en
dc.subject UNMANNED en
dc.subject WATER en
dc.subject Absorbency en
dc.subject Dry Suit en
dc.subject Diving Equipment en
dc.subject LPN-NAVSEA-88-18A en
dc.title Insulation, Compressibility and Absorbency of Dry Suit Undergarments. en
dc.type Technical Report en

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