Build a sampling map someone else can use

Begin with an identifiable surface

Use equipment and component identifiers that people can find during the work. A location name such as “outlet” may be ambiguous when several outlets are present. A photograph or annotated drawing can resolve that ambiguity.

State the sampling question

For each location, record the concern the sample is intended to address. Then connect the collection procedure, sampled area or rinse volume, analytical method and acceptance criterion.

Review the map as a team

Ask a colleague who did not create the map to locate the areas and explain the procedure. Record inaccessible locations and the rationale for the chosen alternative. Revise the map when equipment changes.

RECOMMENDED PRACTICE

This article offers editorial working suggestions. It does not replace the original source, site procedures or a documented scientific assessment.