What we have written on the cold chain41 / 154

Two short events and one long event can produce the same total duration.

Separate delivery inspection from performance acceptance. Define the load, route and measurement points first, then compare results with the agreed record.

A useful form is defined by whether a record can be matched to a container and shift. Start with five fields and check completion.

Match planned runs to downloaded files by ID; investigate unmatched runs without assuming the recorder was never started.

At one cut-off time, match identity, status and location, then classify each difference by container.

Before washing, record container ID, arrival time, previous load and initial condition observations.

A fixed limit sounds only after it is crossed. The hard part of a rate alarm is telling a door opening from a real failure; here is how to set the hold time, the sensor position and the WHO requirements.

Use pre-defined operating steps offline and keep product disposition separate.

Explain the assessed total and missing records before interpreting a trip deviation rate.

Record unit identity, cleaning state and requested work at maintenance handover; do not treat repair completion alone as release for reuse.

Apply actual kWh, fuel, and invoice prices to scenarios; keep tariff and consumption assumptions separate.

Tie the wash record to one clear check: the container, points inspected and the second checker should appear in the same record.