One of the many advantages of the Openlab CDS software is that when we work with an external standard, we may not need to do calibration for long periods, because if we take another copy of the method that was calibrated with the same parameters, and in the event that the results change or problems occur in the method, the current method is changed with the copy that we took from it previously  We find that the method retains the previous calibration and gives correct results when comparing its results to another device. This is one of the many advantages of the great Openlab CDS software.