[Histonet] Powdered reagent expiration dates

Angela Bitting akbitting <@t> geisinger.edu
Mon Jul 26 13:39:07 CDT 2010

Coincidentally, I had a question on this subject this morning. We rec'd in some oxalic acid and phoshotungstic acid, neither of which had expiration dates. I called Fisher and they looked it up for me and told me their expiration and offered to send it to me in writing, if I wanted. (it was 3-5 years from the manufacture date.) I was recently told by another tech that she thought 5 years was the shelf life of powders, but I wanted to see if that held true. Moral of the story is that it never hurts to call the manufacturer.

Angela Bitting, HT(ASCP), QIHC
Technical Specialist, Histology
Geisinger Medical Center 
100 N Academy Ave. MC 23-00
Danville, PA 17822
phone  570-214-9634
fax  570-271-5916 
No trees were hurt in the sending of this email
However many electrons were severly inconvienienced!

>>> Pat Laurie <foreightl <@t> gmail.com> 7/26/2010 1:27 PM >>>
We were inspected by CAP on friday and we were cited for

ANP.21366  *Are reagents and solutions properly labeled, as applicable and
appropriate, with the following elements?*

* *

1.      *Content and quantity, concentration or titer*

2.      *Storage requirements*

3.      *Date prepared or reconstituted by laboratory*

4.      *Expiration date*

Specifically that our staining powders didn't have an expiration date
printed on the bottle. All of our reconsituted reagents which are in
use were dated with an expiration date properly though. I have always
assumed, perhaphs incorrectly, that powdered stains never expire.  We have
powders like Luxol Echt Blau, etc. that were purchased and opened over 40
years ago.    If so, then these powdered reagents have gone through CAP
inspections since the beginning and this inspector was the first one to find
this problem.  Is this one that we might protest?

Patrick Laurie HT(ASCP)QIHC
CellNetix Pathology & Laboratories
1124 Columbia Street, Suite 200
Seattle, WA 98104
PH: 206-215-5949
plaurie <@t> cellnetix.com 
Histonet mailing list
Histonet <@t> lists.utsouthwestern.edu 

IMPORTANT WARNING: The information in this message (and the documents attached to it, if any) is confidential and may be legally privileged. It is intended solely for the addressee. Access to this message by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution or any action taken, or omitted to be taken, in reliance on it is prohibited and may be unlawful. If you have received this message in error, please delete all electronic copies of this message (and the documents attached to it, if any), destroy any hard copies you may have created and notify me immediately by replying to this email. Thank you.
-------------- next part --------------
FN:Bitting, Angela

More information about the Histonet mailing list