1312 Test Period or Interval Qualifier

Code indicating the type of period or interval as related to when a test event occurs

Identifier (ID)
Min 2 / Max 2
TFFinal Test Measurement or Readpoint (Cumulative)
This code marks the end of the experiment under a specific test
TIIntermediate Test Measurements or Readpoint (Cumulative)
There may be a number of intermediate test points during an experiment; this code would likely be combined with DE 350 to indicate which intermediate test point it is
TOInitial Test Measurement or Readpoint (Cumulative)
This is the first test interval that a product or item is subject to

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