Micromeritics TriStar II 3020 - Calculated

V
FW
V
WB
VV
S
T
STD
T
AMB
-------------
–+=
V
FC
V
CB
VV
S
T
STD
T
BATH
----------------
–+=
TriStar II 3020 Appendix C
302-42828-01 - Dec 2012 C-3
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.
where
V
FW
= calculated warm free space
V
FC
= calculated cold free space
V
WB
= warm free space of the empty tube
V
CB
= cold free space of the empty tube
ΔV=V
P
- V
PB
V
P
= volume of the port used for analysis
V
PB
= volume of the port used for the blank analysis
V
S
= sample mass/density