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Qualitative Reference Standards - Assigning a re-test date

http://www.chromforum.org/viewtopic.php?t=109604

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Qualitative Reference Standards - Assigning a re-test date

Posted: Tue Mar 02, 2021 11:23 am
by Mouleyre
Is there any guidance out there on setting re-test dates for qualitative standards. As you are just looking to identify the peak you could literally put years on for the re-test I guess. I have seen 5 years used as a default option but is there anything out there in the literature to say what should be used?

Re: Qualitative Reference Standards - Assigning a re-test date

Posted: Tue Mar 02, 2021 2:32 pm
by Consumer Products Guy
You can run a simple study and compare fresh stuff to the stored stuff. And document such for your records.
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