Micromeritics TRISTAR II PLUS User Manual

Surface tension = 8.88 dynes cm
-1
Molar density = 0.02887 g cm
-3
N2 - Halsey Thickness Curve
Geometry: Cylinder
Substrate: Average
Category: Porosity
Method: Nitrogen 77 K
The calculation is the same as above except that cylindrical geometry is assumed.
Reference: G. Halsey, J. Chem. Phys 16, 931 (1948).
Kelvin Equation with Harkins and Jura Thickness Curve
N2 - Harkins and Jura Thickness Curve
Geometry: Slit
Substrate: Average
Category: Porosity
Method: Nitrogen 77 K
The kernel function is calculated using the Harkins and Jura equation with standard parameters:
The nitrogen properties used in the Kelvin equation are:
Surface tension = 8.88 dynes cm
-1
Molar density = 0.02887 g cm
-3
Geometry: Cylinder
Substrate: Average
Category: Porosity
Method: Nitrogen 77 K
The calculation is the same as above except that cylindrical geometry is assumed.
References: W. D. Harkins and G. Jura, J.A.C.S. 66, 1366 (1944).
J. H. DeBoer et al., J. Colloid and Interface Sci. 21, 405 (1966).
Models Based on Classical Theories
TriStar II Plus Operator Manual
303-42800-01 (Rev M ) — Sep 2023
B - 15

Micromeritics TRISTAR II PLUS Specifications

General

Brand	Micromeritics
Model	TRISTAR II PLUS
Category	Measuring Instruments
Language	English