FAQs (Frequently Asked Questions)

What are the NORMAL and mass conversion formulas under standard conditions (at 0°C and 1 atm)?

Please refer to the following for the NORMAL conversion and mass conversion formulas.
[Mass calculation method for gases]

[Formula]
Q1 = Q0 ×
0.1013 + P 0.1013
×
273.15 273.15 + T

Gas mass = Q1×ρ

Q1
：
NORMAL flow volume [m3(normal)]
Q0
：
Actual flow volume [m3]
P
：
Measured pressure [MPa]
T
：
Measured temperature [℃]
ρ
：
Gas density [kg/m3(normal)]
NORMAL flow volume calculation
[Formula]
Q1 = Q0 ×
0.1013 + P 0.1013
×
273.15 273.15 + T
m3
MPa
℃
The NORMAL flow volume Q1 is
Mass calculation for gases

[Formula] Mass of gas = Q1×ρ

Select the kind of gas (ρis automatically entered) Methane Propane Butane

kg/m3 (NORMAL)
m3 (NORMAL)
The mass of the gas is
*Enter values using half-width characters. The value can be entered up to the sixth decimal place.
*The calculation result is rounded to the first decimal place.

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