ECOTEST MKS-UM Operating Manual page 117

1 – Time of statistical information accumulation required to obtain measurement
results with statistical deviations equal to the specified statistical deviations
determined by the dosimeter.
2 – Time of statistical information accumulation required to obtain measurement
results with statistical deviations equal to the main relative permissible error limit.
Figure B.4 - Dependence diagram of statistical information accumulation time
required to obtain measurement results with estimated limits of statistical
deviations equal to the main relative permissible error limit (1) and specified limits
of statistical deviations (2) determined by the dosimeter from surface beta-particles
flux density when measured by ABG probe
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