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E DIN ISO 29661 VDE 0412-661:2026-04

Reference radiation fields for radiation protection

Definitions and fundamental concepts

(ISO/CD 29661:2025); Text in German and English
Class/Status: Draft, valid
Released: 2026 -04   Published: 2026-03 -06
VDE Art. No.: 1400715
End of objection deadline: 2026-05-06

Note: You can pre-order this document (delivery subject to availability). Valid from 2026-04-01.

ISO 29661 defines terms and fundamental concepts for the calibration of dosemeters and equipment used for the radiation protection dosimetry of external radiation - in particular, for beta, neutron and photon radiation. It defines the measurement quantities for radiation protection dosemeters and doserate meters and gives recommendations for establishing these quantities. For individual monitoring, it covers whole body and extremity dosemeters (including those for the skin and the eye lens), and for area monitoring, portable and installed dosemeters.