Cleared Traditional

MULTISTAT III PHOSPHOROUS TEST (K771477) - FDA 510(k) Clearance

Class I Chemistry device.

K771477 · Instrumentation Laboratory CO · Chemistry device
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Sep 1977
Decision
39d
Days
Class 1
Risk

K771477 is an FDA 510(k) clearance for the MULTISTAT III PHOSPHOROUS TEST. Classified as Phosphomolybdate (colorimetric), Inorganic Phosphorus (product code CEO), Class I - General Controls.

Submitted by Instrumentation Laboratory CO (Mchenry, US). The FDA issued a Cleared decision on September 12, 1977 after a review of 39 days - a notably fast clearance cycle.

This device falls under the Chemistry FDA review panel, regulated under 21 CFR 862.1580 - the FDA in vitro diagnostics and chemistry 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.

View all Instrumentation Laboratory CO devices

Submission Details

510(k) Number K771477 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received August 04, 1977
Decision Date September 12, 1977
Days to Decision 39 days
Submission Type Traditional
Review Panel Chemistry (CH)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
49d faster than avg
Panel avg: 88d · This submission: 39d
Pathway characteristics
Predicate-based equivalence.

Device Classification

Product Code CEO Phosphomolybdate (colorimetric), Inorganic Phosphorus
Device Class Class 1 - General Controls
CFR Regulation 21 CFR 862.1580
What this classification means

Class I devices are subject to general controls only and most are exempt from 510(k) premarket notification. They represent the lowest regulatory burden in the FDA device framework.

Regulatory Peers - CEO Phosphomolybdate (colorimetric), Inorganic Phosphorus

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