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. 2015 Apr 23;7(2):151–159. doi: 10.4047/jap.2015.7.2.151

Fig. 9. Sample 6 in steam-cleaned status (A-D) with significant particle debris and distinctive groove milling; after ultra-sonic cleaning (E-H) relatively isotropic surface roughness (picture g: remains of glass after cleaning, probably from internal glass vial used for transport).

Fig. 9