SIST EN ISO 6980-3:2025

Overview

EN ISO 6980-3:2025 (identical to ISO 6980-3:2023) is a CEN-adopted international standard that specifies procedures for the calibration of area and personal dosemeters using reference beta-particle radiation. The document describes how to determine dosemeter and dose-rate meter responses as a function of beta-particle energy and angle of incidence, and how to express results in the operational quantities used for radiation protection (as defined by the ICRU). It provides guidance on test conditions, phantoms, conversion coefficients, uncertainty statements, and calibration records/certificates. Note: H*(10) and Hp(10) for strongly penetrating radiation are not appropriate for beta radiation.

Key topics and technical requirements

• Calibration procedures for protection-level area and personal dosemeters using beta-reference fields.
• Determination of response vs. energy and angle - measurements to characterise how a dosemeter reacts across beta energies and incident angles.
• Reference absorbed dose rate measurement methods (linked to ISO 6980-2 procedures).
• Conversion coefficients: deriving operational quantities (e.g., directional dose equivalent H′(0.07; Ω), H′(3; Ω), personal dose equivalent Hp(0.07), Hp(3)) from measured reference absorbed dose.
• Phantoms and geometry: recommendations for phantoms and placement of the dosemeter reference point; rules for free-in-air vs. phantom-based irradiations.
• Influence quantities and test conditions: standard test conditions, axes of rotation, photon contribution considerations, and dosemeter condition.
• Calibration factors and correction factors: determination of reference calibration factor, non-linearity corrections, and the k(E, α) correction for energy and angle.
• Uncertainty and reporting: guidance on estimating measurement uncertainties and reporting results consistent with ISO/IEC 17025 requirements.
• Scope limit: does not cover in-situ calibration of fixed installed area dosemeters.

Applications and practical value

• Type-testing and performance verification of personal and area dosemeters used in nuclear facilities, medical workplaces, radiopharmacies, and industrial radiation environments.
• Calibration laboratories performing traceable beta dosemeter calibrations and producing calibration certificates.
• Manufacturers validating instrument response across beta energies and angles during R&D and quality control.
• Radiation protection officers and regulators who require standardized, reproducible calibration and reporting methods.

Who should use this standard

• Accredited calibration laboratories (ISO/IEC 17025)
• Do-semeter and radiation instrument manufacturers
• Health physics and radiation protection professionals
• Nuclear facility radiation safety teams
• Regulatory bodies and conformity assessment agencies

Related standards

• ISO 6980-1 - production and characterization of beta reference radiation fields
• ISO 6980-2 - determination of absorbed dose rate in beta reference fields
• ISO/IEC 17025 - laboratory competence and reporting of calibration results

Keywords: EN ISO 6980-3:2025, ISO 6980-3, beta-particle radiation, dosemeter calibration, personal dosemeters, area dosemeters, conversion coefficients, measurement uncertainty, ICRU operational quantities, calibration certificate.