User-calibration of Mettler AT200 analytical balance

摘要

The purpose of this technical implementing procedure (TIP) is to describe the calibration of the Mettler AT200 analytical balance or similar type balance (henceforth called the balance). This balance is used for activities of the Scientific Investigation Plan (SIP) 'Metal Barrier Selection and Testing' (SIP-CM-01, WBS (number-sign) 1.2.2.5.1). In particular, it will be used for Activity E-20-50, 'Long-Term Corrosion Studies.' The balance will be used for weighing test specimens and reagent chemicals. However, it is not limited to these uses. The calibration procedures consist of activating the internal (self) calibration of the apparatus, and weighing and recording of traceable standards. The balance is equipped with self (internal) calibration and linearization capabilities. It has an internal (built in) set of weights which are used for self calibration. The standard weights are traceable to National Institute of Standards and Technology (NIST).