Tag Archives: measurement

Measurement System Analysis

Question: Is there ever an exception to the rule about needing full Measurement System Analysis for any instrument placed in the Evaluation / Measurement Technique column on the Control Plan?  If an instrument is listed on the control plan, does … Continue reading

Posted in ISO 9001 - Quality Management Systems, Measuring, TS16949 - Automobiles | Tagged , , , , | 1 Comment

Difference Between ISO/IEC 17025 and ISO 10012

Q: I am updating the instrumentation section of a product fabrication specification to replace a cancelled military specification (MIL-STD 45662) that specified calibration systems requirements.  I am looking for an industry standard that provides requirements/guidance for documentation of our established … Continue reading

Posted in ISO 17025 - Testing and Calibration Laboratories, ISO 9001 - Quality Management Systems, Metrology | Tagged , , , , , , | 2 Comments

GR&R Study on a Torque Wrench

Q: I need information on performing a Gage R&R on a torque wrench. We are using the wrench to check customer parts. A: For reference on both variable and attribute Gage R & R techniques, a good source is the … Continue reading

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ISO 9001 7.6a Calibration and Traceability

Q: ANSI/ISO/ASQ Q9001-2008 Quality management systems — Requirements, clause 7.6a states, in part: “Where necessary to ensure valid results, measuring equipment shall a) be calibrated or verified, or both, at specified intervals, or prior to use, against measurement standards traceable … Continue reading

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Variation in Continuous and Discrete Measurements

Q: I would appreciate some advice on how I can fairly assess process variation for metrics derived from “discrete” variables over time. For example, I am looking at “unit iron/unit air” rates for a foundry cupola melt furnace in which … Continue reading

Posted in Statistics | Tagged , , , ,

Accuracy of Measurement Equipment

Q: I work for an incoming quality assurance department. In our recent audits, the auditor claimed that high precision machines such as the Coordinate Measuring Machines (CMM) and touchless measurement system should have higher Gage Repeatability and Reproducibility (GR&R) values … Continue reading

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Visual Fill Requirements

Q: I work for a consumer products company where more than 60% of our products have a visual fill requirement. This means, aside from meeting label claim, we must ensure the fill level meets a visual level. What is the … Continue reading

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