VOLUME CHANGE WITH TEMPERATURE FOR THE 100 CM
3
ACCUPYC
The stainless steel calibration standard (ball) supplied with the 100 cm
3
AccuPyc is made from 440
grade stainless steel. It was measured at 20 °C. Its volume will be higher when heated above 20 °C.
The following table uses the coefficient of thermal expansion of 440 grade stainless steel (0.0000101
m/m/degree C change) to provide the volume of the sphere at various temperatures.
Every ball is a slightly different size therefore the table provides the factor to be used if the value used
during calibration needs to be adjusted. Multiply the volume provided with the reference sphere by
the value in the right column.
Temperature (°C)
Typical Volume (cm
3
) Factor
15
51.089712 0.99995
20
51.092292 1.000000
25
51.094872 1.000051
30
51.097452 1.000101
35
51.100032 1.000152
For example, if the ball is 51.092292 cm
3
at 20 °C but run at 50 °C, multiply the Volume × the Factor
in the table.
51.092292 × 1.000303 = 51.107773
Volume Change with Temperature for the 100 cm3
AccuPyc
AccuPyc II 1345 Operator Manual
134-42851-01 (Rev A) — Jan 2021
13 - 3
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