Since this laboratory experiences very small thermal load, the separate air-handling unit for the Mass Comparator Laboratory maintains the specified temperature with a minimal amount of air exchanges. Because there are few air exchanges, the air flow in the laboratory is greatly reduced, thus enhancing the performance of the auto-handler comparators. Measurements for OIML Class E1 and ASTM Class 0 are made in the Mass Comparator Laboratory, as well as all surveillance of Troemner's primary standards. Each has its own temperature probe mounted within the weighing chamber to measure the temperature of calibrations. Comparators are interfaced to a host computer outside the lab for processing calibrations.
Custom software ensures accuracy and eliminates transposition errors.
Certification certificates are printed in a separate room to minimize airborne contamination. The Level I laboratory's physical conditions and equipment enable Troemner to produce mass measurements with very small uncertainties. The excellent environmental conditions allow the mass comparators to work well within their stated capabilities. To further assure the accuracy of the measurements, several check standards are used during each calibration. Check standards are duplicate standards used to compare standards against one another - to assure that both the measurement process and the standards themselves are in control.