This part of ISO 20785 gives the conceptual basis for the determination of ambient dose equivalent for the evaluation of exposure to cosmic radiation in civilian aircraft and for the calibration of instruments used for that purpose.
EN ISO 20785-1:2017 history
2020EN ISO 20785-1:2020 Dosimetry for exposures to cosmic radiation in civilian aircraft - Part 1: Conceptual basis for measurements (ISO 20785-1:2020)
2017EN ISO 20785-1:2017 Dosimetry for exposures to cosmic radiation in civilian aircraft - Part 1: Conceptual basis for measurements