[Histonet] RE: Pipettes

[Morken, Timothy]

Disposable pipets are exempt from this. I believe it means pipeters that use disposable tips, which we calibrate annually through an outside company (though you can do it yourself if you have an analytical balance).

If you really have an issue with this then put into your procedures a tolerance for measuring liquids that matches that of the disposable pipets (ie, +/- 0.1ml per 10ml or something like that)



Tim Morken
Pathology Site Manager, Parnassus 
Supervisor, Electron Microscopy/Neuromuscular Special Studies
Department of Pathology
UC San Francisco Medical Center


-----Original Message-----
From: histonet-bounces <@t> lists.utsouthwestern.edu [mailto:histonet-bounces <@t> lists.utsouthwestern.edu] On Behalf Of Abbott, Tanya
Sent: Thursday, March 26, 2015 12:24 PM
To: histonet <@t> lists.utsouthwestern.edu
Subject: [Histonet] Pipettes

CAP checklist ANP.23085 refers to Pipettes "that are used for quantitative dispensing of material are checked for accuracy and reproducibility at least annually, and results documented."
We perform our Special Stains by hand. So we use disposable, glass, Non Class A pipettes. About 15 in a bag. We obviously do not check these one by one for reproducibility. I did call CAP and although he tried to be helpful, I still am confused!  Any suggestions on how anyone else handles this?
Thanks in advance,
Tanya

Tanya G. Abbott
Manager Technologist
Histology/Cytology
St Joseph Medical Center
(phone) 610-378-2635

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