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An analytical balance measures masses to within 0.0001 g. Use these balances when you need
this high degree of precision.
Turn the balance on by pressing the control bar. The display lights up for several seconds,
then resets to 0.0000.
Place creased, small weighing paper on the balance pan.
Close the sliding glass doors. Wait for the green dot on the left to go out. This is the
stability indicator light, indicating that the weight is stable.
Press the control bar to cancel out the weight of the container or paper. The display will
again read 0.0000. Carefully add the substance to be weighed up to the desired mass. Do
not attempt to reach a particular mass exactly. Before recording the mass, close the glass
doors and wait until the stability detector lamp goes out. Record mass of solid.
Don't pick up tare containers with bare hands since your fingerprints add mass. Use tongs
to prevent this.
Don't lean on the bench while weighing.
Do record the mass of your container, if you will need it later.
Do check the level indicator bubble before weighing. The two rear balance feet serve as
levelling screws. Use the brush provided to clean spills in the weighing chamber. Discard any
disposable tare containers or weighing paper, in the nearest wastebasket.
sharon kalunda answered the question on April 12, 2019 at 06:19
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