Standardization News

Q. How many batches do we need to evaluate a control or specification limit?A. Click HERE to download the full article and read the answer. 
Q. How do measurement error and process capability affect the probability that a product meets a specification? What is the relationship between parameter estimates in Statistical Process Control (... read more
Q. What is the minimum number of data points recommended to estimate standard deviation?A. Click HERE to download the full article and read the answer.
Q. Is there an important connection between the process capability indices (CPU and CPL) and the precision-to-tolerance ratio?A. Click HERE to download the full article and read the answer... read more
Q. How can measurement uncertainty be estimated?A. Click HERE to download the full article and read the answer.  
 Q: What are detection limits and why are they important?A. Click HERE to download the full article and read the answer. 
Q: How do we judge what the sample max (or min) might be when we don’t know it — assuming a normal distribution?A. Click HERE to download the full article and read the answer.
Q: Which method of quantile estimation should be used?A: Click HERE to download the full article and read the answer.
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: Can a product with a single inspection result that is worse than the specification limit by an amount not exceeding reproducibility (R) be considered as being in conformance with the specification... read more

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