What is the analytical variation (AV) for samples analyzed using the AOCS method?
AAFCO does not list an acceptable analytical variation (AV) for insoluble impurities. Will acceptable variation for comparing results from different labs be developed? Will FDA verify suitability of labs, methods used, and results? A: FDA has not established an AV for this analytical method. FDA welcomes any information indicating that variation in test results is presenting difficulties in establishing that tallow meets the impurity standard. Firms using methods other than the AOCS method must have data or other information showing that the method is equivalent in accuracy, precision, and sensitivity to the AOCS method. 55. Q: If a facility receives a load of tallow that is labeled with the “do not feed to cattle or other ruminants” caution statement, but then tests it and find that it contains 0.15% or less insoluble impurities, can the facility use this tallow in ruminant feed? A: No. While the impurities may settle out to the point where the tallow meets the standard, we do not bel
