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Re: [Homebrew_PCBs] Shelf life of HCl/H2O2

2009-01-06 by Zoran A. Scepanovic

Hello Markus,

  Tuesday, January 6, 2009, 10:02:35 AM, you wrote:

> Then, Stefan wrote " If you want to measure this, you can get a
> hydrometer. The ones sold for car battery acid checks will usually do. A 
> refractometer should work as well."

> A hydrometer - when useing google - seems to be a device to measure 
> humidity? Correct? What is a "refractometer", which of the two would be

  Device for measuring humidity is named HyGrometer:
  http://en.wikipedia.org/wiki/Hygrometer

> I'm sorry if these are dumb questions, but since working with chemistry

  There are no dumb questions, only dumb answers :)

  For Hydrometer: http://en.wikipedia.org/wiki/Hydrometer

  For Refractometer: http://en.wikipedia.org/wiki/Traditional_handheld_refractometer

-- 
 Best regards,
 Zoran A. Scepanovic
 zastos@...

*********
COINCIDENCE happens.
*********

Please be advised what was said may be absolutely wrong, 
and hereby this disclaimer follows.  
I reserve the right to be wrong and admit it in front of the entire world.



Local time: 10:40


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