AssayIndex
Index conventions

Buyer-sourced

Purchased through the supplier's ordinary retail channel by the submitter, with no supplier involvement. The strongest provenance class here.

Related terms

Provenance
How a sample was obtained: buyer-sourced, supplier-supplied or laboratory-retained. A first-class field in this index because it changes the weight of the evidence.

Where this term appears

The glossary exists to make record pages readable without a chemistry degree. Every technical term on a report resolves here.