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E DIN EN ISO 11929-1 VDE 0493-9291:2026-03

Determination of the characteristic limits (decision threshold, detection limit and limits of the coverage interval) for measurements of ionizing radiation – Fundamentals and application

Part 1: Elementary applications

(ISO/FDIS 11929-1:2025); German and English version prEN ISO 11929-1:2025
Class/Status: Draft, valid
Released: 2026 -03   Published: 2026-02 -13
VDE Art. No.: 1400716
End of objection deadline: 2026-04-13

Note: You can pre-order this document (delivery subject to availability). Valid from 2026-03-01.

This document specifies a procedure, in the field of ionizing radiation metrology, for the calculation of the "decision threshold", the "detection limit" and the "limits of the confidence interval" for a nonnegative ionizing radiation measurand, when counting measurements with preselection of time or counts are carried out, and the measurand results from a gross count rate and a background count rate as well as from further quantities on the basis of a model of the evaluation. The present part 1 deals with fundamentals and elementary applications.