A pycnometer is used to check the density of slip.
Weigh the dry pycnometer
Fill it with distilled water and weigh it again
Subtract the initial weight from the final weight to calculate the weight of water
Determine the volume of water using its temperature and weight
Wipe the pycnometer to remove any water
Fill it with slip and weigh it
Calculate the density using the formula below
Density of the Slip = (Weight of pycnometer with slip − Weight of empty Pycnometer) ÷ Volume of water
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