Spectral method for determining the source of expanded vermiculite insulation in attics and walls

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United States of America Patent

PATENT NO 8751169
SERIAL NO

13247682

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Abstract

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A method for identifying the source of vermiculite insulation in situ using a portable spectrometer with a light-emitting contact probe and a personal computer. Identification is accomplished using NIR reflectance spectroscopy and absorption band depth ratios to differentiate between vermiculite sources and to test for the presence of amphibole, talc, or serpentine contaminants in vermiculite insulation.

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Patent Owner(s)

Patent OwnerAddress
U S A AS REPRESENTED BY THE SECRETARY OF THE DEPT OF THE INTERIOR1849 C STREET NW WASHINGTON DC 20240

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Clark, Roger N Lakewood, US 1 0
Lowers, Heather A Golden, US 1 0
Swayze, Gregg A Littleton, US 1 0

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