You will have to compare apple with apple.
The AC5 tag applies to surface abrasion test ratings which generally adhere to the european standard, as they are the pioneer and innovator of laminated hdf boards for flooring. Based on that testing methods and criterias, the material must meet 6,000 rubs for AC5 classification.
To my knowledge, AC5 laminate boards are only available with hpl surfacings (high pressure laminate), and not dpl(direct pressure laminate).
The asian productions (malaysia, china) are dpl, and are quite able to meet AC3 classification (2,000 rubs), which is adequate for usage in heavy residential, and light commercial application.
It is better to be specific by asking the supplier for their standard of classification: international or 'in-house'?