[pianotech] bleaching ivory

John Delacour JD at Pianomaker.co.uk
Tue Nov 2 02:07:24 MDT 2010


At 22:10 -0400 01/11/2010, Terry Farrell wrote:

>WOW! I ground through it. I guess I must have skipped class the day 
>we covered cosmetics grade units. Well, fair enough. I suspect it is 
>obvious to anyone with any science background that such units are 
>quite silly at best, but because the cosmetics industry is a common 
>source for a material we have use for, and they choose to use silly 
>units, then by golly, I guess we need to understand silly units. I 
>am just that much smarter today!  Thanks for the education!
>
>Terry Farrell
>
>FWIW: Those units are really VERY silly......  :-(

If I'd suspected you were a brilliant chemist messing around with 
pianos for a bit of fun rather than just a loudmouth, I'd have 
suggested you search on Google for hydrogen peroxide volume strength.

JD




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