Tank Inventory & Gas Mass Calculator

Standing-Katz Z-factor for Suction Equivalent Volume

Gas Composition

(Mole Fraction)

Sum: 0.0000

Deposit Volume (V2) (ft³)

Pressure (P2) (psig)

Temperature (T2) (°F)

Pressure (P1) (psig)

Temperature (T1) (°F)

Success

Equivalent Suction Volume (V1)

ft³

Volume at Suction P1, T1

Standard Volume @ 14.7/60°F

SCF

Z-Factor (Suction)

Z-Factor (Deposit)

Pseudo-Critical Pres.

- psia

Pseudo-Critical Temp.

- °R

Molecular Weight

- lb/lbmol

Specific Gravity

Formula: V1 = V2 × (P2/P1) × (Z1/Z2) × (T1/T2)

Method: Dranchuk-Abou-Kassem (DAK) Equation of State