f. Collimate to the penetrometer size.
Do not change the size of the conefield during testing.
g. Make the radiographic exposure.
h. Process the films.
i. Collect all the films.
Select, randomly, density on the penetrometer closest to a density of 1.0.
Step j will be known as a guide (master) for the remaining test films.
k. Use the densitometer for density readings (see figure 9-1).
l. Follow step j above for the rest of the test films.
Figure 9-1. Densitometer used in making density readings.