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What is a NIST, ISO, A2LA



NIST stands for the National Institute for Standards and Technology. They are an organization responsible for maintaining the master for different measurements. They have items such as the standard "foot", the standard "second," and the standard "pound." They also keep the standard for temperature, humidity and pressure. All of our instruments are calibrated to be traceable to NIST. Traceable to NIST means the our master standard can be traced directly to the master standard maintained by the NIST organization. More information on NIST can be found on


Our highest level of calibration is ISO 17025 accredited by A2LA. ISO 17025 is the ISO standard the takes ISO 9000 requirements and adds a large section for calibration and testing laboratories. Being accredited to ISO 17025 is the most rigorous quality standard in the measurement industry. It is very difficult to attain, much more so then a standard ISO 9000 certification, and a majority of calibration providers operating today have not achieved this accreditation.


A2LA stands for the American Association for Laboratory Accreditation. A2LA is an organization that accredits calibration and testing facilities like ours to the ISO 17025 standard. They are recognized as a third party auditor for this standard not only in the United States, but internationally as well. When a customer purchases our highest level of calibration, the calibration certificate will have an A2LA accredited logo on the certificate. More information about A2LA can be found at

Click here to learn more about our calibration process, our Replaceable Sensors® that make recalibration a process that takes only seconds, and our A2LA certified calibration lab.