I have also looked for a way to do this but i found that the only way is to launch a search on a database for each standard hopefully they will produce the same criteria.
Try these sites and do a search on both
We're manufacturers of surgical instruments. We need your help in this regard and request let us know the latest processing methods of stainless steel and health care chemical treatment.
If your looking into steels, try a compendium book such as ASM's steels of the world. It lists steels in order of carbon content. If you find an ISO spec there should be an ASTM designation very close to it.
I have found that some steels have no corresponding matches.