Used as a primary reference for calibrating other reference standards and weights where the stability of the environment and careful handling are assured. Class E1 weights have no method of adjustment and are not suitable for general laboratory use. The uncertainty is guaranteed to be 1/3 the tolerance.
UKAS Accredited Certificate
UKAS Weight Calibration meets the requirements of the United Kingdom Accreditation Service (UKAS) which encompass ISO/IEC 17025 and EN450001 requirements. Troemner is a UKAS Accredited Calibration Laboratory Number 0516. UKAS approves, through periodic audits, all processing and weighing procedures, as well as certificate format and content. Calibration procedures vary by tolerance class requested. The contents of the UKAS Accredited Certiticate of Calibration are the same as the contents of the NVLAP Accredited Calibration Certificate.