Mean TIC retention times were calculated across quadruplicate injections of the PS 8670 digest and data from three of the injections were used to calculate mean UV retention times. The difference between means of the PS 8670 reference map peak retention times and the corresponding peaks for the three lots of RM 8671 was <2% for all peaks in the TIC and UV chromatograms, indicating a high degree of similarity between PS 8670 and the RM 8671 lots.