NIST Traceability

Our Class 1 weights and calibration procedures are N.I.S.T. traceable. The Metrology Laboratory of the State of Arizona and the Metrology Laboratories of Rice Lake Weighing Systems certifies our weights annually and are NAVLAP accredited. Additionally, our company is an ANS/ISO/IEC Standard 17025:2005 Accredited calibration laboratory. Our ISO Registrar is the International Accreditation Service (IAS).

Please also reference our ISO page for signatories in the USA. ISO Signatories