I think "concentrated" can be used to mean both, diluted (usually along with a % specification) as well as highest percentage possible. Language is a strange thing, when the words concentrated and diluted can mean the same thing. ;-) ST On Wed, Jan 20, 2010 at 3:38 AM, Roger Blair <Roger.Blair@...> wrote: > BTW, isn't 40%, 37%, 32%, or 10% all levels of 'concentration'? There must be something else I'm not > understanding. >
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Re: [Homebrew_PCBs] Re: Reducing concentration of HCl from 10% to 40%
2010-01-20 by Stefan Trethan