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Guarded Window Test Apparatus for Determining the Insulation Value of Interior Window CoveringsTextile Consultant, Ramsey, New Jersey 07446, U.S.A. An electronic test apparatus was designed for measuring winter heat flow through windows with and without interior insulating window coverings. The method pro vides reasonably accurate data on and the insulating effectiveness of various shades and draperies. The test data correlate well with results from other, more expensive and time consuming test methods.
Textile Research Journal, Vol. 52, No. 10,
643-651 (1982) |
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