A few customers are requesting that reports show the actual lab humidity during calibration of their equipment. I realize that this can be a critical consideration for some types of calibration but when it comes to fixed limit gages, I have never heard the rationale for such a request other than it’s what their customer expects.

Calibration reports are supposed to be clear and concise so the reader can understand the details. In fact, the ISO 17025 standard has a section that deals with this topic in specific terms so it would seem there should be no room for misinterpretation. 

Calibration is not just about having stickers on your equipment with dates that say everything is okay.

My journey in dimensional inspection and quality started what seems like a lifetime ago when I ran the one-CMM quality department in my father’s aerospace engineering firm. Thirty years later, my passion for American ingenuity has never been stronger.

Like any other commercial enterprise, calibration laboratories cannot be all things to all people.

Before I get into hand-to-hand combat on this gentle reader, I thought it might be helpful to explain a few things about what uncertainty is, and what it is not.

I regularly take shots at quality auditors for some of their antics but thought that, in the interest of fairness, it was time to turn my sights on issuers of calibration reports for some of their antics.

This question is rarely, if ever, asked but assumptions regarding the length of time involved regularly pop up, especially when measurement disputes are the situation into which such assumptions are injected.