One embodiment comprises a method of providing accurate mass flow controller flow rate data for a non-manufacturing-tuning-gas. The mass flow controller may be operated at a setpoint greater than 50%. Data may be recorded to a mass flow controller memory. The setpoint may then be changed to 0%. The recorded data may then be analyzed and one or more non-manufacturing-tuning-gas correction algorithm parameters may be calculated. The one or more non-manufacturing-tuning-gas correction algorithm parameters may be stored in a mass flow controller memory and subsequently used in at least one future mass flow controller operation involving the non-manufacturing-tuning-gas.