An Automated Dynamic Water Vapor Permeation Test Method

Abstract

This report describes an automated apparatus developed to measure the transport of water vapor through materials under a variety of conditions. The apparatus is more convenient to use than the traditional test methods for textiles and clothing materials, and allows one to use a wider variety of test conditions to investigate the concentration-dependent and nonlinear transport behavior of many of the semipermeable membrane laminates which are now available. The dynamic moisture permeation cell (DMPC) has been automated to permit multiple setpoint testing under computer control, and to facilitate investigation of transient phenomena. Results generated with the DMPC are in agreement with and of comparable accuracy to those from the ISO 11092 (sweating guarded hot plate) method of measuring water vapor permeability.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1995
Accession Number
ADA298744

Entities

People

  • Cyrus Kendrick
  • Donald Rivin
  • Linda Sicuranza
  • Majid Charmchii
  • Phillip Gibson

Organizations

  • United States Army Soldier Systems Center

Tags

Communities of Interest

  • Cyber
  • Energy and Power Technologies
  • Human Systems

DTIC Thesaurus Topics

  • Accuracy
  • Boundary Layer
  • Clothing
  • Computers
  • Diffusion Coefficient
  • Engineering
  • Fabrics
  • Laminates
  • Mass Transfer
  • Materials
  • Measurement
  • Steady State
  • Test Methods
  • Textiles
  • Vapor Pressure
  • Vapors
  • Water Vapor

Readers

  • Computational Modeling and Simulation
  • Thermal Physics or Thermal Science.
  • Underwater engineering and Marine Technology.