The Difference Between Standard Calibration and Accredited Calibration
We frequently field questions about the difference between a standard calibration and an accredited calibration. For the laboratories at Cross, an accredited calibration follows a process that has been accredited by A2LA and conforms to the standards set by ISO 17025. Although all customers benefit from our stringent quality system and ISO 17025 accreditation, all accredited calibrations must meet additional, specific requirements identified by A2LA (our accrediting body).
Some of these additional requirements involve additional information on the calibration certificate. These include the presence of the accreditation logo and our lab’s certificate number as well as measurement uncertainties listed for each test point. This evaluates the repeatability of the specific device under test and gives our customers more useful information for determining their measurement accuracies than a stated measurement accuracy ratio.
However, a few of the differences between a standard and accredited calibration have to do with what happens “behind the certificate”. For example, during an accredited calibration the technician evaluates the repeatability of the specific device under test by calculating the actual uncertainty for each test point. Also, for an accredited calibration the Cross technician must follow the exact calibration procedure listed on our scope, such as ASTM D2240 for durometers, even when other procedures exist. Finally, in order to maintain our accreditation we participate in blind, inter-laboratory proficiency testing to verify our measurement capabilities and stated uncertainties. Learn more about our accredited calibration and get a quote for service today!
Why Partner With Cross Company?
In the field of metrology, there are many standards to follow to ensure reliable calibration or inspection. At Cross Precision Measurement, we are an ISO 17025 accredited calibration laboratory that adheres to standards set out by NIST (HB44), the National Conference on Weights and Measures (NCWM), the National Type Evaluation Program (NTEP), A2LA, and other relevant standards. With our experience and expertise, we can ensure you’re getting reliable, repeatable metrology results.
Since 1939, our Precision Measurement group has provided industry-leading technical expertise coupled with world-class customer service to manufacturing and other industrial operations in need of onsite calibration, product inspection, precision measurement equipment, and more. Our precision measurement and inspection teams have the knowledge and resources to help you reduce risk, improve quality, and increase efficiency throughout your entire process. With our extensive network of calibration labs across the Southeast and Midwest, we can ensure you’re getting the metrology services you need. Contact Cross Precision Measurement today
