Chemical Concentration verification and records

Hi All,

I am a newer QA technician, and I have been given a chance to try writing a policy on chemical titration, including concentration verification and records. I was wondering if anyone had some good examples of these that I can reference to knock my bosses socks off with my first policy? Thank you in advance to anyone willing to help me!

Kelsey

Hi Kelsey,

Are you writing a policy for an existing procedure and want literary references to justify the need for chemical titration and show the consequences of inadequacy?

Or are you writing a procedure itself? In which case I would refer to the chemical suppliers recommendations for usage and methods. I use an excel sheet for keeping records, with simple formatting to calculate conc % and highlight any out of spec results.

p.s. :welcome: to the forum

Thank you for the response, and the welcoming! I am writing the procedure itself. :smile: 

In that case, I would contact the suppliers if they have not already provided the recommended titration and info relevant to your operation. I can't share my procedure itself, but it's essentially the testing method, frequency of tests for each chemical/area, corrective actions, and testing in a hygienic manner I.e. not contaminating product. Bear in mind also any scheme or regulatory requirements you may have in regards to this. 

I hope your bosses appreciate the effort :smile:

How often does the verification of cleaning chemicals should be done? (CFIA audit)

In my mind, it's best to verify them before each shift they'll be used.  If you've got a machine premixing the titrations, yeah it's a pain, but verification is quick with a test strip.  If you're mixing manually, then every batch you mix should absolutely be checked.