Particulate Systems MA-1040, Руководство оператора

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MA-1040 Magnetic Analyzer Cleaning the Sample Holder
May 2011 7
Cleaning the Sample Holder
Sample holders should always be clean and dry before adding sample. Use a mild soap and water to
clean the sample holder; a soft-bristled brush may also be used.
Weighing the Sample
Perform the following steps to obtain the sample weight:
1. Place a clean, dry sample holder on the balance. Allow the balance to stabilize then tare it to zero.
2. Using a proper lab technique (such as stirring), mix the sample to evenly distribute all grains.
3. Remove the sample holder from the balance and fill with sample until it is just below the over-fill
orifice.
4. Place the sample holder (containing sample) back onto the balance. Allow the balance to stabilize
and record the weight shown on the display.
Do not use steel brushes or harsh solvents (such as acetone) to clean the
sample holder. Doing so will scratch the inside of the sample holder.
Be sure to mix the sample well so that grains are distributed evenly. Settling of
the sample will result in an inaccurate reading.