Chemical indicator element systems for aquatic environment water parameter testing
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United States of America Patent
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Oct 24, 2017
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app pub date -
Dec 4, 2015
filing date -
Jun 19, 2013
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Abstract
A chemical indicator element for use in an aquatic environment water parameter testing system. The chemical indicator element includes a chemical indicator and a thin film material having particular optical characteristics tied to the light from a light source, such as a light source of an optical reader element of a water parameter testing system. The chemical indicator element may also include at least one of a backing material that absorbs one or more wavelengths of the light of the light source and a holder including a material that absorbs one or more wavelengths of the light of the light source.
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