Measurement Uncertainty Evaluation for NR Plasticity via Control Chart Method in Top-down Technique |
Received:November 05, 2018 Revised:November 05, 2018 |
DOI:10.12136/j.issn.1000-890X.2019.09.0708 |
Key Words: Top-down technology;control chart method;NR;plasticity value;measurement uncertainty |
Author Name | Affiliation | E-mail | Yang Ying-hua* | Xishuangbanna Prefecture Comprehensive Inspection Center of Quality and Technical Supervision,Jinghong Yunnan 666100 | yahyayang@hotmail.com |
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Abstract: |
Based on the top-down technology, the measurement uncertainty of the plasticity value of natural rubber was evaluated by the control chart method. The quality control data of the daily analysis quality control samples in the laboratory were used for evaluation. The normality and independence of the time series data were statistically controlled, and the precision, bias and random distribution of the time series data were verified. The results showed that this method was objective to evaluate the measurement uncertainty of natural rubber plasticity value. |
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