10 Must-Know Metrology Terms

Anytime you mention Metrology in a casual setting, you inevitably get asked about the weather—“did you mean meteorology?”

Metrology is the study of measurement, and it’s what we do here at Made to Measure. And just like every industry, we have our own jargon that can seem a bit intimidating. We’re taking it down to the very basics with 10 Must-Know Metrology Terms with our team at Made to Measure!


The action or process of officially recognizing a metrology laboratory as having a particular status or being qualified to perform inspections by a 3rd party group to certify that the lab meets certain standards. A great example of an accreditation is the ISO 17025 standard.


AUKOM is a world-wide standard of metrology with an international goal of strategically creating a uniform metrology industry. This standard is vendor-neutral, allowing you to take the skills that you learn and apply them to any coordinate measuring machine and any software. Made To Measure is proud to be a certified provider of AUKOM training in the USA! In fact, we are only one of four AUKOM-certified CMM training lab.


The comparison of measurement values delivered by a test device with that of a calibration standard of known accuracy. Such a standard could be another measurement device of known accuracy, or a physical artifact. Examples would be gauge blocks or probe characterizing sphere.


The degree to which a product is operable and is capable of performing its required function at any randomly chosen time during its specified operating time, provided that the product is available at the start of that period.


In numerical data sets, the difference or distance of an individual observation or data value from the center point (often the mean) of the set distribution.


a graphical representation of the distribution of numerical data.


The Science of Measurement; embracing both experimental and theoretical determinations at any level of uncertainty in any field of science and technology. (as stated by the International Bureau of Weights and Measures)


The variation in measurements obtained when one measurement device is used several times by the same person to measure the same characteristic on the same product.


The minimum and maximum limit values a product can have and still meet customer requirements.


The act of confirming a product or service meets the requirements for which it was intended.

Get Your Questions Answered at Made to Measure

Are you wondering how metrology can help your quality control and production processes, don’t hesitate to contact us online. Our team is always ready to help you learn more about metrology and how