- The specs that indicate: its most quantity are printed about the neck in the pipette; the scale of their divisions, represented as 1/ten, 1/a hundred; the calibration temperature; and a legend determined as TD or TC, through the acronym in English of To supply (ex) or To incorporate (in), https://alexisdbunf.azzablog.com/29500257/the-basic-principles-of-types-of-pipettes