Micromeritics ASAP 2460, Operator'S Manual

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Appendix C ASAP 2460 Operator’s Manual
C-46 246-42800-01 - Aug 2013
Control Chart Variables
Mean =
StdDev =
CoefVar =
PlusNSig =
MinusNSig =
Summary Report
The following calculations and the results of previous calculations (as noted) are used to generate the
summary report:
a.) Single-point Surface Area (m
2
/g)
where
P = pressure closest to 0.3 of the relative pressure points designated for surface area
calculations.
Q = quantity adsorbed corresponding to P
b.) Multi-point Surface Area
See BET Surface Area Calculations
c.) Langmuir Surface Area
See Langmuir Surface Area Calculations
d.) t-Plot Micropore Surface Area
See t-Plot calculations

y
i
N
---------

y Mean –
 
2
N 1 –
------------------------------------
StdDev
Mean
-------------------
Mean n StdDev

+
Mean n StdDev

–
S
1PT
Q 1 P –
   
CSA 6.023 10
23
   
22414cm
3
STP
10
18
nm
2
m
2
-----------------------
 
 
 
--------------------------------------------------------------------------------
=