This question is directed to any person who is currently working in an Environmental Testing Laboratory which is certified by the state to perform analysis on wastewater, drinking water, soil and other sample types and more specifically, anyone who holds state certifications for North Carolina.

I know that it is required to have all auto-pipettors calibrated every 6 months by a certified party, however I am unsure if the same standard applies to bottle top dispensers (I.e. Dispensette tops). Please go to the below link if you are uncertain of what I am referring to:

http://www.brandtech.com/prodpage.asp?prodid=4701321

Since these tops dispense reagents and standards just like pipettors, it seems odd to me that there would not be calibration requirements placed on them as well. If anyone has any information I would appreciate it.