A quarterly freeze is performed to determine the physical integrity of the sample after sustaining a freeze. The physical testing we recommended after a quarterly freeze is pH, viscosity, percent total solids, weight loss, disintegration, loss on drying, and organoleptic testing.
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We’ve worked closely with the FDA for years. Please allow us to better explain what tests and test methods may be required to be performed by the FDA. We are here to assist you in as many ways that we can. Our staff is friendly and always happy to help.