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Standardization News

Data Points
What Do We Mean by Zero Defects; Part 2
Q: How do we handle zero defects or non-conformities when sampling a continuum? A. Click HERE to download the article and read the answer.   
Industry Sectors:
Quality

Data Points
The Intermediate Precision of ASTM International Test Methods
Q: What is the intermediate precision of a test method? How is it measured and used? A. Click HERE to download the article and read the answer. 
Industry Sectors:
Quality

Data Points
What Is the Proper ASTM ILS Design?
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 ASTM committees suggest alternative designs. What are the benefits of the… more
Industry Sectors:
Quality

Data Points
What Are Z-Scores?
Q: What exactly are z-scores and how are these statistics used in practice? A. Click HERE to download the article and read the answer. 
Industry Sectors:
Quality

Data Points
Statistical Intervals
Q: What is a confidence interval? A. Click HERE to download the article and read the answer. 
Industry Sectors:
Quality

Data Points
Testing for Outliers
Q: How can you test for an outlier, and Is there an ASTM standard for this practice? A. Click HERE to download the article and read the answer. 
Industry Sectors:
Quality

Data Points
Lot Acceptance Procedure Criteria
Q. Lots are released based on comparing test results from a sample to lot acceptance procedure criteria. If a set of test results meets the lot acceptance procedure criterion, how can I be assured that another sample from the lot would also pass the… more
Industry Sectors:
Quality

Data Points
How Normal Is Normal?
Q. How can I determine if my data comes from a normal distribution? A. Click HERE to download the full article and read the answer. 
Industry Sectors:
Quality

Data Points
Assessing crack Detection capability
Q. What statistical procedure is used to determine the typical crack size that can be detected with a given probability? A. Click HERE to download the full article and read the answer.
Industry Sectors:
Quality

Data Points
GESD – A Robust and Effective Technique for Dealing with Multiple Outliers
Q. I suspect that my data contain more than one outlier. Is there a preferred technique to use to isolate them? Click HERE to download the full article and read the answer. Editor’s Note: Another standard can now be used to avoid the masking… more
Industry Sectors:
Quality