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Vitaquest assay miss is not friability fail
Divide assay misses by batches in one Vitaquest potency cut. That ratio is assay-miss %.
Pair: Potency fail rate on Stock. Friability twin: friability-fail. CU twin: content-uniformity.
What you type
Potency fails — Batches that missed the Vitaquest potency / assay method in the cut.
Batches — Batches tested on that same Vitaquest potency cut.
Assay-miss % = assay misses ÷ batches × 100. Fat assay-miss % usually means blend / weigh / hold drift — chase that station; never invent an assay-miss chip.
What not to do
Skip inventing assay-miss %. Skip dumping friability or CU fails into potency fields. Skip treating hardness fails as assay misses. Skip blending SKUs when one lot owns the hole.
Related: Stock, friability-fail, content-uniformity, hardness-fail.
Procedure
- Type potency fails and batches.
- Read fail %.
- Chase blend / weigh when fail % is material.
Failure modes
- Inventing fail %.
- Dumping friability or CU fails into potency fields.
- Treating hardness fails as assay misses.
Worked example
None on this page yet. When one lands it will be a real case: what broke, the number, and what changed. Not a composite.
Glossary
- Potency fail rate %
- Potency fails ÷ Batches × 100.
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FAQ
- Is this Vitaquest friability-fail rate?
- Sibling Vitaquest lab door. [Friability-fail rate](/manuals/vitaquest-friability-fail-rate) is tablet friability. This page is potency assay misses ÷ batches.
- Is this Vitaquest content-uniformity fail rate?
- Sibling assay grain. [Content-uniformity fail rate](/manuals/vitaquest-content-uniformity-fail-rate) is CU. Here you only divide potency assay misses by batches.
- What assay-miss % should I invent?
- None. Pull assay misses and batches from the same Vitaquest potency cut.