Library · Stock / inventory · How to run this
Heavy-metal fail is not weight variation
ICP metal fails ÷ batches make fail %. Type both.
Pair: Heavy-metal fail rate on Stock. Fill: weight-variation fail rate. Hold: microbial hold.
What you type
Heavy-metal fails — Batches the NutraScience COA failed on Pb / As / Cd / Hg limits.
Batches — Batches assayed for those metals in that same COA window.
Fail % = heavy-metal fails ÷ batches × 100. Quarantine the lot or retest the COA when fail % is fat. Do not invent a fail chip.
What not to do
Do not invent fail %. Do not fold hopper fill rejects into ICP fails. Do not paste detector scrap onto the COA. Do not blend SKUs when one lot owns the hole.
Related: Stock, weight-variation fail rate, microbial hold, metal-detect reject rate.
Procedure
- Type heavy-metal fails and batches.
- Read fail %.
- Quarantine / retest when fail % is material.
Failure modes
- Inventing fail %.
- Folding fill-weight fails into metal assays.
- Treating metal-detect scrap as heavy-metal fail.
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
- Heavy-metal fail rate %
- Heavy-metal fails ÷ batches × 100.
Work with us — We run this job on your accounts. Services
FAQ
- Is this weight-variation fail rate?
- Fill scale. [Weight-variation fail rate](/manuals/nutrascience-weight-variation-fail-rate) is hopper weight. This page is ICP metal assay fails ÷ batches.
- Is this metal-detect reject rate?
- Plant scrap. [Metal-detect reject rate](/manuals/vitaquest-metal-detect-reject-rate) is detector rejects. This page is NutraScience heavy-metal assay fail.
- What fail % should I invent?
- None. Type heavy-metal fails and batches from the same NutraScience COA run.