1) NTP - Normal Temperature and Pressure - is defined as 20oC (293.15 K, 68oF) and 1 atm ( 101.325 kN/m2, 101.325 kPa, 14.7 psia, 0 psig, 30 in Hg, 760 torr)
Since specific gravity is the ratio between the density (mass per unit volume) of an actual gas and the density of air - specific gravity has no dimension. The density of air at NTP is 1.205 kg/m3.
Control Valve terminology, bodies, trim, flow characteristics, Cv and Kv sizing, noise, actuators and positioners
Air, LNG, LPG and other common gas properties, pipeline capacities, sizing of relief valves.
Material properties of gases, fluids and solids - densities, specific heats, viscosities and more.
Carbon - Nitrogen ratios for biogas produced from various raw materials.
Typical composition of biogas produced from household waste.
Potential biogas production from animal manure.
Chemical, physical and thermal properties of n-Butane.
Figures and table with changes in Prandtl number for carbon dioxide with changes in temperature and pressure.
Chemical, physical and thermal properties of carbon dioxide. Phase diagram included.
An introduction to density, specific weight and specific gravity.
Specific heat of Ethane Gas - C2H6 - for temperatures ranging 250 - 900 K.
Densities and molecular weights of common gases like acetylene, air, methane, nitrogen, oxygen and others.
Absolute (dynamic) viscosities of some common gases.
Specific heat of Hydrogen Gas - H2 - at temperatures ranging 175 - 6000 K.
Chemical, Physical and Thermal Properties of Hydrogen - H2.
Specific gravities for common fluids like acetone, alcohol, turpentine, oil and more.
Boiling temperatures for common liquids and gases - acetone, butane, propane and more.
Definition and molecular weight (molar mass) of some common substances.
Specific gravity for common solids and metals like aluminum, asbestos, brass, calcium and many others.
The definition of STP - Standard Temperature and Pressure and NTP - Normal Temperature and Pressure.
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