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All RUSH requests will be charged 100% of the base test price plus prep fees. RUSH in most cases means next-day turnaround (end-of-day), with the exception of some specialty tests (most vitamins, amino acid/fatty acid profiles, heavy metals, and some others) that may take 2 or more days. Please contact the lab for clarification on rush turnaround before submission.

In some select cases, same-day rush can be arranged for a fee to be determined before a sample submission at no less than 200% of the base test price + fees.

AOCS only awards Approved Chemist status to labs that have qualified in a “Laboratory Proficiency Testing” series of competitive, blind check samples. Qualification requires finishing in roughly the top 25% of contributing labs and, as such, comes as close to the ideal of demonstrated proficiency as one can find.

The categories of testing and certification tend to be narrow, but many of the test methods apply equally well to a broad range of materials. For instance, the fish meal and oilseed meal categories include testing for all five proximate constituents: moisture, protein, fat, fiber, and ash.