Used as for primary key - foreign key relationships between sample and tests Although this is all numbers it is stored as a string due to lead zeros. Although this is all numbers it is stored as a string due to lead zeros. This field provides a second company identifler to receive a copy of the results of testing. Although this is all numbers it is stored as a string due to lead zeros. This field provides a third company identifler to receive a copy of the results of testing. A max of thirteen may appear for each sample due to size limitations of the bar code on the label The number of seed used in this test.