Location: Cotton Structure and Quality Research
Title: Comparative Evaluation of Laboratory Fiber Moisture Measurement Methods Authors
Submitted to: National Cotton Council Beltwide Cotton Conference
Publication Type: Proceedings
Publication Acceptance Date: February 5, 2009
Publication Date: June 15, 2009
Citation: Rodgers III, J.E., Cui, X., Martin, V., Watson, M. 2009. Comparative Evaluation of Laboratory Fiber Moisture Measurement Methods. Proceeding at the National Cotton Council Beltwide Cotton Conference. 1179-1184 CD-ROM. Technical Abstract: In the global marketplace, the accurate and precise measurement of cotton fiber moisture is becoming more important. Moisture is a key quality and processing parameter for cotton fiber, and several moisture measurement techniques and commercial instruments are readily available, but how well do they agree with each other? A program was implemented to compare and determine the capabilities of various laboratory moisture instrumentation and measurement methods. Several moisture instruments were evaluated and validated with a common set of domestic and international cotton samples. The moisture techniques were divided into 4 broad categories—thermal, chemical, spectroscopy, and “electric.” The moisture results were compared with those obtained by a thermal/oven drying method. Results to date indicate that most fiber moisture techniques agree to within ±0.5% moisture with the oven method for greater than 90% of the samples analyzed, but only a few agree to within ±0.3% moisture with the oven method for greater than 80% of the samples analyzed. A preliminary comparative matrix has been developed.