K821719 is an FDA 510(k) clearance for the AMMONIA REAGENT. Classified as Enzymatic Method, Ammonia (product code JIF), Class I - General Controls.
Submitted by Gilford Diagnostics (Mchenry, US). The FDA issued a Cleared decision on June 24, 1982 after a review of 14 days - a notably fast clearance cycle.
This device falls under the Microbiology FDA review panel, regulated under 21 CFR 862.1065 - the FDA microbiology device framework. The Traditional 510(k) pathway establishes clearance through substantial equivalence to a legally marketed predicate device, without requiring clinical trial data.
Device pattern: Fast-track predicate clearance. Standard predicate reliance. The short review cycle indicates strong predicate alignment - the FDA found sufficient equivalence without extended technical review.
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