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Reply To: | BP - His DNA is this long. |
Date: | Fri, 24 Jul 1998 09:59:44 EDT |
Content-Type: | text/plain |
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Steve writes:
>><< John Leeke, Preservation Consultant wrote:
>> > Bryan writes:
>>> >>test the
>>> concrete surface for salt deposits. This can be done with a high range
>>> moisture meter, some blotter paper and water.<<
>>>
>>> Could you describe the procedure for this test? >>
>>Geesh you guys! The standard test for salt (NaCl) is taste. And, once you
>>know what Thenardite, Epsomite, and Trona taste like, you can identify
>>those
>>salts too. Discretion is advised if you suspect Urea.
I have long known and used taste and smell as the practical chemical analysis
tool. I learned to taste the difference between incipient brown cubic rot and
incipient white rot from a old sawyer here in southern Maine. On my projects
we call it the Farm Yard Fhysics and Kitchen Kemistry methodology: borrowing
from the scientific, but not getting distracted by it, relying on our
practical sence of the world around us.
None the less, I really would like to know Bryan's method of using these
simple materials for a salts test.
John Leeke
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