[Histonet] discarding old dry chemicals with no expiration date

[Smith, Allen]

The problem is letting people with little or no knowledge of chemistry make chemical decisions.  Some chemicals are unstable on the shelf, some are not.  Methyl green decomposes in a year or two, tetracycline decomposes in 5 years, indigo lasts for millennia.  Indigo used by Bar Kochba's soldiers to dye the fringes of their prayer shawls in the second century has been found in caves in the Judean desert; it is still indigo. 
Allen A. Smith
Professor of Anatomy
Barry University School of Podiatric Medicine
Miami Shores, Florida 

-----Original Message-----
From: histonet-bounces <@t> lists.utsouthwestern.edu [mailto:histonet-bounces <@t> lists.utsouthwestern.edu] On Behalf Of jstaruk
Sent: Wednesday, September 30, 2009 4:40 PM
To: 'Rene J Buesa'; histonet <@t> lists.utsouthwestern.edu
Subject: RE: [Histonet] discarding old dry chemicals with no expiration date

I always have a problem determining the expiration date of sodium chloride!

Jim

_______________________
James E. Staruk HT(ASCP)
 www.masshistology.com
   www.nehorselabs.com
 
 

-----Original Message-----
From: histonet-bounces <@t> lists.utsouthwestern.edu
[mailto:histonet-bounces <@t> lists.utsouthwestern.edu] On Behalf Of Rene J Buesa
Sent: Wednesday, September 30, 2009 4:27 PM
To: histonet <@t> lists.utsouthwestern.edu; Kelly Boyd
Subject: Re: [Histonet] discarding old dry chemicals with no expiration date

I was going to comment about "how important" some people seem to feel to
find "something" to add to the inspection report even when it is
unsubstantiated, about how many of those chemicals are extracted from mines
where they have existed for eons, how the only important thing is to make
sure that those designated as anhydrous have to be kept that way in order to
assure the quality of the solutions and that everything else is almost
ridiculous, but I better don't because I may "hurt" some feelings!
René J.

--- On Wed, 9/30/09, Kelly Boyd <kdboydhisto <@t> yahoo.com> wrote:


From: Kelly Boyd <kdboydhisto <@t> yahoo.com>
Subject: [Histonet] discarding old dry chemicals with no expiration date
To: histonet <@t> lists.utsouthwestern.edu
Date: Wednesday, September 30, 2009, 1:24 PM


Our lab recently had our CLIA inspection and the surveyor informed me that
we need to discard any dry chemicals with an opened date of more than 10
years, even though none of the dry chemicals have an expiration date. This
was not written up as a deficiency, but it was suggested we follow up on
this for our next re-certification.
 I am sure it is best to keep the chemicals current, but is this what all
labs are doing?


Kelly D. Boyd, BS, HTL (ASCP)
Lab Manager
Harris Histology Services
2025 Eastgate Dr. Ste. F
Greenville, NC 27858
www.harrishisto.com 
 
Tele (252)-830-6866
        (800)-284-0672
Cell (252)-943-9527
Fax  (252)-830-0032
 
 
 
 
 



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