
A Test Drop Selection Record
Documentation of a random selection from eligible, submitted, sealed participant vials, without result or product claims.
Purpose and scope
This selection record explains how a random selection was formed for a documented test drop from eligible, submitted, sealed participant vials. It concerns traceability of the process, not an assessment of any contents and not a statement about a product.
Here, “eligible” refers only to the formal participation conditions defined in advance. These may include timely receipt, a registered identifier, an intact seal, and assignment to the relevant selection window. Whether a vial was selected says nothing about its characteristics.
Receipt and formal review
Each submission received a unique documentation identifier. At intake, the record captured receipt, selection window, and the visible condition of the seal. The review was limited to these formal features. Illegible, duplicate, or late records were marked and excluded from the eligible population where the rules required it.
The sealed vials were kept separately from the selection list until the draw. This was intended to delay the link between an identifier and a physical container until after the selection. Changes to the list or custody record were dated and explained.
Building the selection set
Before the draw, a closed list of all eligible identifiers was prepared. It contained one identifier per vial. The responsible person checked the entry count against intake records and recorded the closing time. After that point, the list was not meant to be changed substantively.
The record also states the rule used for selection: for example, a fixed number of identifiers, a defined random source, and a procedure for repeated results. The random source and parameters were noted so that the calculation can later be followed without opening a seal.
Random selection and reconciliation
The selection was performed against the closed identifier list. Drawn identifiers were recorded immediately; repeated results were handled under the rule established in advance. Each selected identifier was then reconciled with the corresponding sealed vial. The reconciliation recorded identity, seal condition, and handover to the documented next step.
A second person or a later control can review the list, the randomization record, and the reconciliation. Any discrepancy is recorded as a discrepancy rather than silently corrected afterward. This preserves the state that existed at the time of selection.
Documents and limited significance
Depending on the workflow, the selection record includes the eligible identifier list, timestamp, randomization evidence, reconciliation sheet, and any deviation notes. These documents describe a limited procedure. A later laboratory report can only present the measurements and documented conditions stated in that report. It cannot establish a general statement about untested vials, other shipments, merchants, or future procedures.
The documentation should therefore be read as a process record. It is not a comprehensive review of all submissions and does not state anything about the characteristics, use, or suitability of any contents. What matters is what the relevant report actually records and how its method limits interpretation.
For a neutral review, consult the complete methodology and associated laboratory reports; they show which steps were documented and which boundaries apply to interpretation.