Convert SCCM to standard liters per minute, molar flow, mass flow, or actual gas volume using selectable reference conditions, pressure, and temperature.

Use the conditions specified for your meter, controller, or process.

Gas choice affects mass flow only; SCCM-to-molar conversion uses the selected reference conditions.

SCCM Formula

The following formula is used to calculate the standard cubic centimeters per minute (SCCM) when the gas volume is expressed at the chosen standard conditions.

SCCM = (V₍std)) / (T)
  • Where SCCM is the standard cubic centimeters per minute (standard volumetric flow rate)
  • Vstd
     is the total gas volume expressed at the chosen standard conditions (cm³)
  • T is the total time (min)

To calculate SCCM, divide the standard-volume equivalent (in cm³) by the elapsed time (in minutes). If the volume is not already referenced to standard conditions, the result is cm³/min (actual) rather than SCCM.

What is SCCM?

Definition:

SCCM, short for standard cubic centimeters per minute, is a unit of measure of gas volumetric flow referenced to a defined set of “standard” conditions (standard temperature and standard pressure). The exact standard conditions can vary by industry; a common reference is 0°C and 1 atm.

How to calculate SCCM?

Example Problem:

The following example outlines how to calculate the standard cubic centimeters per minute.

First, determine the total standard-volume equivalent. In this example, the total standard volume is 50 cm^3 (i.e., 50 standard cm³).

Next, determine the total time of flow. In this case, the total time is 500 minutes.

Finally, calculate the SCCM using the formula above:

SCCM = Vstd / T

SCCM = 50 / 500

SCCM = 0.10 cm^3/min