کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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586577 | 878221 | 2012 | 6 صفحه PDF | دانلود رایگان |
A Bayesian approach-based method is proposed for calculating the minimum size of a sample to assess, with a specified precision, the integrity of process components suffering from general corrosion. The proposed method ensures that the error in the posterior estimate of the mean does not exceed a pre-defined acceptable margin of error at a specified confidence level. An analytical formula to estimate the sample size is introduced. The sample size obtained using the proposed method is smaller than a sample size obtained using the classical method with same confidence level. This reduces sampling inspection cost without affecting the precision of the estimate.
► A method is proposed to determine sample size for inspection of general corrosion.
► The proposed method is based on Bayesian updating approach.
► An analytical formula to estimate the sample size is introduced.
► The effect of prior knowledge on the sample size determination is discussed.
Journal: Journal of Loss Prevention in the Process Industries - Volume 25, Issue 1, January 2012, Pages 218–223