Let’s consider another freezer item: “The temperature of the freezer is OK”. This formulation should raise several questions. What is the proper temperature for this freezer? Is the freezer too cold or too warm? What temperature was actually measured?
A good checklist tells the inspector as concise as possible what to inspect. A better formulation of the same is “The temperature of the freezer lies between -15 celsius and -7 celsius”. A professional inspection tool allows you to store the measured temperature with the inspected item.
However this will not tell you if the freezer is too cold or too warm and what temperature was being measured. If you want statistics over the results of multiple inspections you might consider a phrasing using two items
- “The temperature of the freezer is higher than -15 celsius”
- “The temperature of the freezer is lower than -7 celsius”
This will differentiate between the number of ”too warm” and “too cold” items. It can help you discover structural inconsistencies.