A densitometer is used to measure radiographic density by being calibrated using a density strip. The density strip has printed density values that are then compared to the readings from the densitometer to ensure it is accurately measuring density and to check for any deviations, with the serial numbers of both the strip and densitometer recorded.

1. DENSITOMETER

2. Measuring Radiographic Density
 Density is measured by a
densitometer
 A densitometer should be calibrated
using a density strip
Density Strip
1.23 1.88 2.13 2.44 2.63 2.93 3.03 3.53 4.23

3. Reading from
strip
Reading from
Densitometer
Deviation
+ or -
Serial Number from
density strip
Serial Number from
densitometer
1.72
1.82
+ 0.10
#2000
KL124/0
2.17
2.07
- 0.10
#2000
KL124/0
2.79
2.67 2.97 3.04
2.85 3.14
+ 0.12 - 0.12 + 0.10
#2000 #2000 #2000
KL124/0 KL124/0 KL124/0
Measuring Radiographic Density