I assume you are talking about manual cleaning operations. For automatic cleaning operations, each cycle will be qualified.
Here are a few cleaning methods:
- COP (soak or spray bath)
- Parts Washer
For manual cleaning operations some of the factors that would be part of “same cleaning procedure” would be:
- Same cleaning agent/solution
- Same personnel
- Same environmental cleaning conditions
- Same dirty hold time, same clean hold time
- Same cleaning utensils/tools used (same brushes, poles, extensions)
- Same pressure washers (if used)
- Same temperature of cleaning solution.
- Same cleaning time
- Same number of scrub passes.