In a message dated 97-12-01 09:40:16 EST, you write:

> you might give this recipe a try: 1-5 grams of CrO3 in 100ml of
>HCl. Either swab or immerse for a few seconds. Good Luck.
>
>

And do be careful with this one, do not make it up in large volumes, as it
can release Chlorine gas, which, as we all learned, is harmful to human
beings and process engineers......

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