03:10
Preparing to perform a reagent test
11:28
Using Solid Crystal Reagent Test Granules
02:03
Calibration and stability test of TL-20 series balance
00:58
Bees on the poppies
05:15
Calibrating the Mettler AE-200 precision balance with the internal calibrator.
13:06
Dissasembly and cleaning of a Charles Austen B100-DE diaphragm pump
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