Category Archives: Metrology

ISO 17025 calibration requirements

Question: I was recently in a discussion with someone about ISO 17025 calibration requirements. It was my understanding that all equipment associated with the tests within our ISO 17025 scope needed to have an uncertainty value reported with each calibration. … Continue reading

Posted in ISO 17025 - Testing and Calibration Laboratories, Metrology

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

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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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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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