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ARS Home » Southeast Area » New Orleans, Louisiana » Southern Regional Research Center » Cotton Structure and Quality Research » Research » Publications at this Location » Publication #301680

Research Project: New and Improved Assessments of Cotton Quality

Location: Cotton Structure and Quality Research

Title: Understanding the bias between moisture content by oven drying and water content by Karl Fischer titration at moisture equilibrium

Author
item Montalvo Jr, Joseph
item Von Hoven, Terri
item Byler, Richard

Submitted to: National Cotton Council Beltwide Cotton Conference
Publication Type: Proceedings
Publication Acceptance Date: 2/9/2014
Publication Date: 5/15/2014
Citation: Montalvo Jr, J.G., Von Hoven, T.M., Byler, R.K. 2014. Understanding the bias between moisture content by oven drying and water content by Karl Fischer titration at moisture equilibrium. National Cotton Council Beltwide Cotton Conference. p. 916-023.

Interpretive Summary: Multiple causes of the difference between equilibrium moisture and water content have been found. The errors or biases were traced to the oven drying procedure to determine moisture content. The present paper explains the nature of the biases in oven drying and how it is possible to suppress one bias over the other. Given the small range of equilibrium water data, samples were conditioned to more stringent specifications to provide precise data to test the hypothesis in the research.

Technical Abstract: Multiple causes of the difference between equilibrium moisture and water content have been found. The errors or biases were traced to the oven drying procedure to determine moisture content. The present paper explains the nature of the biases in oven drying and how it is possible to suppress one bias over the other. Given the small range of equilibrium water data, samples were conditioned to more stringent specifications to provide precise data to test the hypothesis in the research.