Calculated - Micromeritics Gemini VII 2390a Operator's Manual

Gemini VII

Calculated

The calculated free space is determined by subtracting the gas capacity of the volume occupied by the
sample from the measured free space of the empty tube.
= +
V V
FW WB
= +
V V
FC CB
where
V =
FW
V =
FC
V =
WB
V =
CB
ΔV =
V =
P
V =
PB
V =
S
239-42828-01 - Dec 2012
T
STD
V V 
-------------
–
S
T
AMB
T
V V  STD
--------------- -
–
S
T
BATH
calculated warm free space
calculated cold free space
warm free space of the empty tube
cold free space of the empty tube
V - V
P PB
volume of the port used for analysis
volume of the port used for the blank analysis
sample mass/density
Appendix C
C-3