Calibration

Calibration equipment is the set of reference standards and weights used to verify and adjust the accuracy of laboratory instruments, above all analytical and precision balances. In this category the catalogue runs to 325 listings, of which 94 percent are used. New, used and refurbished items sit side by side, from single mass pieces to full certified sets. A calibration weight carries a known, traceable mass against which a balance reading is checked, so the weight itself becomes the yardstick for everything the balance later measures. These standards range from individual gram pieces to kilogram references, each tied to a tolerance class that fixes how far the true mass may stray from the nominal value.