Tomas Cuerda, Inc. Technical Service Department provides mass calibration services; our metrology staff has received training in mass calibrations and has extensive experience in the field. Environmental conditions in the laboratory are monitored and controlled. Our capability ranges from 1 mg to 30 kg. We can advise clients on the selection, use, and appropriate calibration of precision weights and any aspect of process measurement. Calibration procedures used are the one recommended by NIST