Alpha Liberty offers weight verification and certification of analytical weights and weight sets. Calibration weights and weight sets should be re-certified on a managed periodic basis determined by several factors, including environment, frequency of use, demands of the process, quality of the weighing device, age of the weights, and handling during use.
Alpha-Liberty’s mass standards calibration laboratory is designed and constructed to meet the recommended environmental and procedural practices as detailed in National Metrology Institute (NIST) and ISO/IEC standards for the calibration of mass. Our calibration capabilities range from Class 1 to Class F, and from 1 mg to 25 kg. Our lab has been accredited to ISO/IEC 17025:2017 for mass calibration by ANAB.
To accurately estimate the cost of our calibration services, please contact our lab.
Alpha-Liberty offers accredited weight documentation. Our Weight Calibration Certificate meets requirements of ISO/IEC 17025 and measurements are traceable to the SI through NIST.
The Weight Calibration Certificate lists the uncertainty of the measurement process as it relates to the item being calibrated, lists the actual mass values or the corrections to the nominal mass of the weight being calibrated, and includes the environmental conditions present at the time of calibration.