Interviews
16th CSITC round trial completed
30 Dec '10
2 min read
The 16th Round Trial under the auspices of the Task Force on Commercial Standardization of Instrument Testing of Cotton (CSITC RT 2010-4) was conducted from October to December 2010.
The number of active participants in the CSITC Round Trials increased to a new record of 80 testing facilities with 127 instruments worldwide.
For CSITC RT 2010-4, the typical inter-laboratory variation achieved by instrument testing, given as standard deviations, were:
Due to the USDA-AMS donation of new micronaire calibration material to all participating laboratories, it was possible to significantly decrease the inter-laboratory variation for Micronaire for all tested cottons.
Unfortunately the inter-laboratory variation in color results (Reflectance Rd and yellowness +b) increased slightly with the increased number of participating instruments.
Laboratories are given an overall ranking based on their combined performance over all six properties, as well as rankings for performance on each of the six parameters. Detailed diagnostic results are provided to each participating laboratory to assist instrument operators in improving performance.
Results for each test center are confidential. Rankings are based on the results of each lab in coming closest to the mean (average) values for all laboratories participating in the Round Trial on all six parameters.
The range of scores for the combined properties among the 127 instruments in RT 2010-4 was 0.29 to 4.47 (a score of zero would be perfect), and the median overall evaluation of the combined properties was 0.60.
Registration for the 2011 Round Trials has already reached 98 testing facilities.
The International Cotton Advisory Committee-ICAC Task Force on Commercial Standardization of Instrument Testing of Cotton (CSITC) conducts quarterly round trials to help establish international standardization of cotton classification based on the Universal Calibration Cotton Standards in order to promote efficiency in cotton production and marketing. All cotton testing centers around the world are encouraged to participate to ensure that their cotton testing results using high volume instruments are on the same level of accuracy and precision as other testing centers.
The number of active participants in the CSITC Round Trials increased to a new record of 80 testing facilities with 127 instruments worldwide.
For CSITC RT 2010-4, the typical inter-laboratory variation achieved by instrument testing, given as standard deviations, were:
Due to the USDA-AMS donation of new micronaire calibration material to all participating laboratories, it was possible to significantly decrease the inter-laboratory variation for Micronaire for all tested cottons.
Unfortunately the inter-laboratory variation in color results (Reflectance Rd and yellowness +b) increased slightly with the increased number of participating instruments.
Laboratories are given an overall ranking based on their combined performance over all six properties, as well as rankings for performance on each of the six parameters. Detailed diagnostic results are provided to each participating laboratory to assist instrument operators in improving performance.
Results for each test center are confidential. Rankings are based on the results of each lab in coming closest to the mean (average) values for all laboratories participating in the Round Trial on all six parameters.
The range of scores for the combined properties among the 127 instruments in RT 2010-4 was 0.29 to 4.47 (a score of zero would be perfect), and the median overall evaluation of the combined properties was 0.60.
Registration for the 2011 Round Trials has already reached 98 testing facilities.
The International Cotton Advisory Committee-ICAC Task Force on Commercial Standardization of Instrument Testing of Cotton (CSITC) conducts quarterly round trials to help establish international standardization of cotton classification based on the Universal Calibration Cotton Standards in order to promote efficiency in cotton production and marketing. All cotton testing centers around the world are encouraged to participate to ensure that their cotton testing results using high volume instruments are on the same level of accuracy and precision as other testing centers.
International Cotton Advisory Committee (ICAC)
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