Standard cubic centimeters
sccm stands for standard cubic centimeters per minute . Regardless of pressure and temperature , this unit describes a defined amount of flowing gas ( number of particles or gas mass) per unit of time, i.e. a particle flow or mass flow .
The standard cubic centimeter is a gas volume of V = 1 cm³ under standard conditions ( T = 0 ° C and p = 1013.25 hPa ), the so-called physical standard conditions or STP according to DIN 1343 .
The standardized volume can be converted into a mass by multiplying it by the associated standard density. The (standard) density of air under the physical standard conditions is 1.293 kg / m³ = 1.293 mg / cm³.