Compendium Of Variables - Micromeritics ASAP 2020 Confirm Operator's Manual

Appendix C
8) dA/dD pore area (dA/dDpF
9) dA/dlog(D) pore area [dA/dlog(DpF
dA/d

Compendium of Variables

Va
Vl
D
Pr
Dp
Rc
A
F
Tw
Tw
HP1, HP2, and HP3 are Halsey Parameters from the Halsey Thickness Equation dialog.
HJ1, HJ2, and HJ3 are Harkins and Jura Parameters from the Harkins/Jura Thickness Equa-
tion dialog.
Vd
Davg
CSAa
CSAc
SAw
Td
Vc
Lp
202-42811-01 - Mar 2011
dA/dDpF = INTERP DpF
I
where INTERP(x) is the value interpolated from the function X = D
dA/dD .
J
 pF 
log D = INTERP DpF
I
where INTERP(x) is the value interpolated from the function X = D
dA/dlog(D) .
J
= quantity adsorbed expressed as a volume (cm
= liquid equivalent volume of volume adsorbed (cm
= density conversion factor from the Adsorptive Properties dialog box
3 3
(cm /cm STP)
= relative pressure
= pore (or core) diameter (A)
= Kelvin radius (A) of core
= adsorbate property factor; from the BJH Adsorptive Options dialog
box
= fraction of pores open at both ends; from the BJH Adsorption Report
Options dialog box or the BJH Desorption Report Options dialog box
= thickness of adsorbed layer desorbed during interval (A)
= thickness of remaining adsorbed wall (A)
= volume of gas desorbed from walls of previously opened pores (cm
g)
= average pore diameter (A)
= annular cross-sectional area of the desorbed layer (cm
= cross-sectional area of opening of newly opened pores (cm
= total surface area of walls exposed (cm
= thickness of layer desorbed from walls of newly opened pores (A)
= volume desorbed from cores of newly opened pores (cm
= length of pore (cm/g)
, m 2 /g-A):
I
 
I + 1
2
), m /g]:
I
 
I + 1
ASAP 2020 Confirm
and Y =
avgJ
and Y =
avgJ
3 /g STP)
3 /g)
2
)
2
)
2 /g)
3
/g)
3
/
C-21