Environmental Monitoring Lab: One Sample, Step by Step
An environmental monitoring laboratory runs a sample through collection, receipt, standards and reagents, batch analysis and a state electronic deliverable. By the time a sample reaches an instrument, its result is largely already decided. The steps that invalidate environmental data happen at collection, at preservation and against the holding time clock.
Analytical precision on a sample that was preserved wrong is precision about the wrong thing. The holding time clock starts at collection, not receipt. Receipt is where control-of-records findings concentrate, and the governing expiration is the earliest of four clocks. The deliverable is a named state format at a named version.
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