RMP.4:5.2 - Pump-P4: distinguish absence, exclusion and interpretation
On the valid-marker branch of the seal study, specimen P4-07 is damaged during handling before one planned observation. The trace retains its allocation and material identity, the handling record, the time and basis of the reported damage, the absent observation, the applicable prior exclusion intention and the decision actually taken.
The comparison dataset links the remaining observations to their specimen records and preserves why P4-07 contributes no value at that point. Three readings from another seal remain three readings of that seal; trace organization cannot create independent specimens.
A critic can now examine whether the missingness or exclusion threatens the comparison. That judgement belongs to the applicable analytical or criticism Method. The trace neither repairs the lost observation nor grants authority to change the pump’s maintenance interval.