In order to maintain traceability and accuracy, calibration weights should be calibrated periodically by a mass lab with direct NIST traceability. Our weight calibrations are traceable to NIST and give you the confidence and documentation required to assist you in the use of your balance precision weights. Turnaround time for weight calibrations is a real world five to seven working days, or more immediate turnaround times may be scheduled in advance.
Our Mass Lab is A2LA Laboratory Accredited for weight calibrations. This accreditation is a blue ribbon stamp of approval for technical competence in weight calibration. This A2LA accreditation is to the ISO/IEC 17025 and ANSI/NCSL Z540-1 calibration standards. A2LA, the American Association for Laboratory Accreditation, is a non-profit organization that, along with NVLAP, is recognized at the highest level in accrediting laboratory testing and calibration organizations.
Atlantic has the capability to calibrate balance precision calibration weights ranging from 1mg up to 30kg. Extremely tight weight calibration uncertainties allow us to calibrate balance precision Ultra Class Weights, ASTM Class 0 Weights, ASTM Class 1 Weights down to ASTM Class 4 and ASTM Class 7 Weights. In addition we can also calibrate balance precision weights to the international tolerances for OIML Class E2 Weights, OIML Class F1 Weights, OIML Class F2 Weights down to OIML Class M3 Weights. NIST Traceable Certificates are furnished with every weight calibration on your balance precision weights.
Which Accuracy Class best fits your requirements?
|APPLICATION||RECOMMENDED WEIGHT CLASS|
|Micro and Ultra Micro Balance||= ASTM Class 0|
|Analytical Balances||= ASTM Classes 1, 2 & OIML Class E2|
|For Top Loading Balances||= ASTM Classes 3, 4 & OIML Classes F1, F2|