Standardization News

 Q: Is estimation of uncertainty required if a laboratory is using a standard ASTM International test method with defined repeatability and reproducibility, and using standard equipment,... read more
Q: What is a standard error and how is this used in practice?A. Click HERE to download the full article and read the answer.  
Q: How does sample size impact Shewhart Individuals control chart reliability?A. Click HERE to download the full article and read the answer. 
Q: How does sample size impact Shewhart individuals control chart reliability?A. Click HERE to download the full article and read the answer.  
The Benefits of E691 Q: ASTM International standard E691, Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method, recommends a particular design, but other... read more
Q: What is a tolerance interval?A. Click HERE to download the full article and read the answer. 
Q: What is the purpose of multiple or redundant inspections?A. Click HERE to download the full article and read the answer. 
 Q. How can I combine the results of two samples that are statistically alike based on hypothesis testing when the original data are now unavailable?A. Click HERE to download the full... read more
Q: What is precision and how is it interpreted in the context of ASTM test methods?A. Click HERE to download the full article and read the answer. 
 Q. I suspect that my data contain more than one outlier. Is there a preferred technique to use to isolate them?A. Click HERE to download the full article and read the answer. 

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