Micromeritics ASAP 2460 - Thickness Curve Calculations; Broekoff-De Boer; Carbon Black STSA; Halsey

Appendix C ASAP 2460 Operator’s Manual
C-44 246-42800-01 - Aug 2013
Thickness Curve Calculations
For each point designated, the following parameters are used in thickness curve calculations:
C
1
= parameter #1
C
2
= parameter #2
C
3
= parameter #3
P
rel,i
= relative pressure for the i
th
point (mmHg)
t
i
= thickness for i
th
point
Kruk-Jaroniec-Sayari
Halsey
(Halsey
5
)
Harkins and Jura
(Harkins and Jura
6
)
Broekoff-de Boer
Carbon Black STSA
t
C
1
C
2
P
rel i
log–
--------------------------------------


C
3
=
t
i
C
1
C
2
P
rel i
ln
-----------------------
C
3
=
t
i
C
1
C
2
P
rel i
log–
--------------------------------------
C
3
=
P
rel i
log
C
1
t
2
i
--------
C
2
c
3
t
i
exp+=
t
i
C
1
P
rel i

2
C
2
P
rel i
C
3
++=