ECOTEST DKG-21 M Operating Manual page 99

5.2.7.2 Testing
5.2.7.2.1 Perform operations stated in 4.2.3.
5.2.7.2.1.1 If all operations stated in 4.2.3 are
performed, proceed to the next test operation.
5.2.7.2.1.2 Even if a single operation stated in 4.2.3
cannot be performed, the dosimeter should not be
verified and should be sent for repair.
5.2.7.3 DER and DE measurements should be
performed on the phantom with 30x30x15cm dimensions,
with PMMA walls (polymethylmethacrylate, front wall
thickness - 2.5 mm, other walls thickness – 10 mm); the
phantom should be filled with distilled water.
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