Problem-Solving Resource Center

Gage R & R

What It Is Used For

  • To determine the variation in the measurement system due to the measurement equipment itself and its use by the appraisers.

When to Use It

  • Before implementing SPC techniques or conducting designed experiments to verify that a sound measurement system exists.
  • Periodically to ensure the measurement system has not degraded.

Important Notes

  • Most common GR&R Techniques are for non-destructive testing of variable-data measurement devices. The techniques must be modified for destructive testing and for attribute-data measurement devices.

Gage R & R