5.2.7.4.7 Maximum value of all received errors is the limit of main
relative permissible error of DER measurement.
5.2.7.4.8 If the main relative permissible error limit of DER
measurement at 0.95 confidence probability does not exceed:
- 20 % in the DER range of 1.0 to 10 μSv/h;
- 15 % in the DER range of 10 μSv/h to 1.0 Sv/h,
proceed to the next verification operation.
5.2.7.4.9 If the main relative permissible error limit of DER
measurement does not meet the requirements stated in 5.2.7.4.8, the
dosimeter cannot be verified and should be sent for repair.
5.2.7.5 Calculation of the main relative permissible error limit of DE
measurement in the DER range of 1.0 µSv/h to 1.0 Sv/h, in the DE range
of 0.01 to 9999 mSv is performed as follows.
5.2.7.5.1 Prepare the dosimeter for DE measurement. The initial DE
readings should be “0.000 mSv”.
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