1 - New items registered in 2025 and 2026
2 - Preliminary Work-Items (PWI)
3 - Proposals for new project under ballot
1 - New items registered in 2025 and 2026
Terminology
ISO 12749-6, Vocabulary - Part 6 : Nuclear medecine
ISO 12749-7, Vocabulary - Part 7 : Aging management and life management for nuclear power plants
Radiological protection
revision
ISO 10648-1, Containment enclosures - Part 1 : Design principles (ISO 10648-1:1997)
ISO 10648-1, Containment enclosures - Part 2 : Classification according to leak tigtness and associated checking methods (ISO 10648-2:1994)
ISO 11665-8, Measurement of radioactivity in the environment — Air: radon-222 — Part 8: Methodologies for initial and additional investigations in buildings (ISO 11665-8:2019)
ISO 11665-9, Measurement of radioactivity in the environment — Air: Radon-222 — Part 9: Test methods for exhalation rate of building materials (ISO 11665-9:2019)
ISO 16637, Radiological protection — Monitoring and internal dosimetry for staff members exposed to medical radionuclides as unsealed sources (ISO 16637:2016)
ISO 16638, Radiological protection — Monitoring and internal dosimetry for specific materials (revision of ISO 16638-1:2015, ISO 16638-2:2019)
ISO 16646, Fusion installations - Criteria for the design and operation of confinement and ventilation of tritium fusion facilities and fusion fuel handling facilities (ISO 16646:2024)
ISO 17873, Nuclear facilities — Criteria for the design and operation of ventilation systems for nuclear installations other than nuclear reactors (ISO 17873:2004)
ISO 18589-5, Measurement of radioactivité in the environment - Soil - Part 5 : Strontium 90 - Test method using proportional counting or liquid scintillation counting (ISO 18589-5:2019)
ISO 20031, Radiological protection — Monitoring and internal dosimetry for specific material (ISO 20031:2020)
ISO 20785-4, Dosimetry for exposures to cosmic radiation in civilian aircraft — Part 4: Validation of codes (ISO 20785-4:2019)
new
ISO 20041-3,Tritium and carbon-14 activity in gaseous effluents and gas discharges of nuclear installations — Part 3: Determination of tritium and carbon-14 activities sampled by molecular sieve
The purpose is to provide supplemental information on the analysis and calculations of titrium and carbon-14 activities in nuclear facilities.
ISO 22699, Premature Chromosome Condensation (PCC) for biological dosimetry
The purpose is to provide the minimal acceptable criteria for quality assurance and quality control, evaluation of the performance and the accreditation of biological dosimetery by cytogenetic laboratories using the premature chromosome condensation assay.
ISO 20785-5, Dosimetry for exposures to cosmic radiation in civilian aircraft — Part 5: Dose assessment of intermittent sources of ionising radiation at aviation altitudes
The purpose is to provide a method to evaluate the relevant radiation risk of aircrew and passengers at flight attitudes.
ISO 24921, Measurement of radioactivity in urine - 241Am - Test method using alpha spectrometry
This document specifies a test method during routine, monitoring, accident situation and chelation treatment
ISO 23558, Nuclear facilities — Classification of challenging conditions for HEPA filters and qualification
The purpose is to establish a classification of challenging conditions to which HEPA filters may be designed and qualified to in nuclear facilities.
ISO 25593, Nuclear facilities - Double containment annulus leakage rate
The prupose is to specify the methodologies and acceptance criteria for conducting leakage tests.
ISO 25596, Pressurized light water reactors — Methods for radioactive sources design analysis for normal operations
The purpose is to provide a comprehensive guidance on the design analysis of radioactive sources in PWRs using UO2 fuels for normal operation states.
ISO 25600, Estimation method of RBE weighted absorbed doses from acute exposure
The purpose is to establish a method and dose coefficients supporting rapid dose assessment, emergency response decision-making and international cooperation during nuclear and radiological emergencies
Nuclear installations, processes and technologies
revision
ISO 9006, Uranium metal and uranium dioxide powder and pellets — Determination of nitrogen content — Method using ammonia-sensing electrode (revision ISO 9006:1994)
ISO 9894, Subsampling of uranium hexafluoride in the liquid phase (revision ISO 9894:1996)
ISO 10981, Nuclear fuel technology — Determination of uranium content in samples coming from nuclear fuel cycle by liquid chromatography (revision ISO 10981:2004)
ISO 11483, Nuclear fuel technology — Preparation of plutonium sources and determination of 238Pu/239Pu isotope ratio by alpha spectrometry (revision ISO 11483:2005)
ISO 12800, Nuclear fuel technology — Guidelines on the measurement of the specific surface area of uranium oxide powders by the BET method (revision ISO 12800:2017)
ISO 15366-1, Nuclear fuel technology — Chemical separation and purification of uranium and plutonium in nitric acid solutions for isotopic and isotopic dilution analysis by solvent extraction chromatography — Part 1: Samples containing plutonium in the microgram range and uranium in the milligram range (revision ISO 15366-1:2014)
ISO 15366-2, Nuclear fuel technology — Chemical separation and purification of uranium and plutonium in nitric acid solutions for isotopic and isotopic dilution analysis by solvent extraction chromatography — Part 2: Samples containing plutonium and uranium in the nanogram range and below (revision ISO 15366-2:2014)
ISO 15646, Re-sintering test for UO2, (U,Gd)O2 and (U,Pu)O2 pellets (revision ISO 15646:2014)
ISO 16117:2013/AMd 1, Nuclear criticality safety — Estimation of the number of fissions of a postulated criticality accident
ISO 18256-1, Nuclear fuel technology — Dissolution of plutonium dioxide-containing materials — Part 1: Dissolution of plutonium dioxide powder (revision ISO 18256-1:2019)
ISO 18256-2, Nuclear fuel technology — Dissolution of plutonium dioxide-containing materials — Part 2: Dissolution of MOX pellets and powders (revision ISO 18256-2:2019)
ISO 21614, Determination ofcarbon content of UO2 (U, GD)O2 and (U,Pu)O2 powders and sintered pellets - Combustion in a high-frequency induction furnace - Infrared absorption spectrometry (ISO 21614:2008)
ISO 26062, Nuclear technology — Nuclear fuels — Procedures for the measurement of elemental impurities in uranium-, plutonium and thorium-based materials by inductively coupled plasma mass spectrometry (revision ISO 26062:2010)
new
ISO 24389-3, Management of radioactive waste from nuclear facilities - Part 3: Disposal
This document specifies guidances to provides assurance of the radiation safety of the disposal of radioactive waste, in the operation of a disposal facility and especially after its closure.
ISO 24389-6, Management of radioactive waste from nuclear facilities - Part 6: Documentation
This document specifies the lifecycle management to support all stages and disposal of radioactive waste.
ISO 26645-1, Decommissioning of nuclear power plants - Part 1 : General principles
This document specifies the principles, methods and pratical approaches of items to be considered for decommissiong.
Reactor technology
revision
ISO 10979, Reactor technology – Nuclear power reactors – Identification of fuel assemblies (revision ISO 10979:2019)
new
ISO 19696, Reactor technology — Fusion reactors — Test methods for low temperature mechanical properties of electrical insulation materials of superconducting device
This document provides test methods for low temperature mechannical properties of glass fiber reinforced polymer matrix insultation materials for magnetic confinement fusion superconducting devices.
ISO 19991, Reactor technology — Experimental magnetic confinement fusion reactor — Supersonic molecular beam injection fueling technique for nuclear fusion devices
The purpose is to specify supersonic molecular beam injection fueling technique for nuclear fusion devices, including the components, the general and technical requirements, and inspections. This international standard applies to the supersonic molecular beam injection system in magnetic confined fusion devices. The system can be applied in fusion device as active control tool including the control of the density, control of the edge particles, control of the plasma disruption, control of the transition from low high plasma confinement mode to high plasma confinement mode and so on.
ISO 22996, Reactor Technology — Fission Research Reactor — Design and Operation
The purpose is to specify the basic compartments to consider when building the technically comprehensive design characteristics and operational parameters for current and new fission research reactors.
ISO 23010, Reactor Technology — Fission Research Reactor — Waste and Decommissioning
The purpose is to specify requirements for research and test reactors, including basic compartments to consider when building the technically comprehensive characteristics for radioactove waste and spent fuel management and parameters for decommissionning of previous operational and/or new fission research reactor.
ISO 25852, Reactor technology — Nuclear Power Plants — On-site Implementation of Severe Accident Management Guidelines (SAMGs)
This document describes the basic requirements and methods for the implementation and verification of severe accident management guidelines at nuclear power plants which have completed the development of severe accident management guidelines.
ISO 26047, Chemistry control performance indicator for pressurized water nuclear power plant
This document specifies the parameters and calculation methodology.
ISO 26281, Shielding design analysis of pressurized water reactor nuclear power station cavity radiation streaming
This document specifies the applicable methods, calculation scope, design input parameters.
ISO 26549, Reactor technology - Pressurized water reactor - Calculation and calibration method for thermal power
This document provide a technical method for calculation and calibration during normal operation and startup.
ISO/NP 26549, Calculation and calibration method for thermal power of pressurized water reactor
This document specifies the calculation and calibration methods for thermal power reactor (PLWR and PHWR) during normal operation and startup
Quality Management
revision
ISO TR 4450, Quality management systems - Guidance for the application of ISO 19443:2018 (ISO/TR 4450:20)
The purpose is to take into account the revision of ISO 19443.
2 - Preliminary Work-Items (PWI) registered in 2025 and 2026
The PWI is a viable outline or draft for a future standard, not yet sufficiently mature for further stages, and for which no target dates can yet be set.
Terminology
ISO/PWI 12749-1, Nuclear energy - Vocabulary - Part 1 : General terminology
Radiological protection
ISO/PWI 22127, Dosimetry with radiophotoluminescent glass dosimeters for dosimetry audit in MV X-ray radiotherapy
ISO/PWI 26306, Decommissioning of linear acceleratorsISO/PWI 26306, Establishment, maintenance, verification and assessment of confinement integrity for the hot cell in spent fuel reprocessing facilities
ISO/PWI 26308, the 3D dose measurement method based on scintillator for radiotherapy
ISO/PWI 26309, Measurement of Krypton-85 in gaseous effluents from nuclear power plants using scintillator counting
ISO/PWI 26476-1, Radiological monitoring for emergency workers and population following nuclear/radiological incidents - Part 1 : Managing all the useful data collected during population screening to enable dose assessment
ISO/PWI 26476-2, Radiological monitoring for emergency workers and population following nuclear/radiological incidents - Part 2 : Measurement of internal contamination and calculation of internal doses for people involving in screening
ISO/PWI 26477, Measurment of external contamination of the body and decontamination strategy following an event involving a risk of contamination radioactive substances
Nuclear installations, processes and technologies
ISO/PWI 7195, Nuclear energy — Packagings for the transport of uranium hexafluoride (ISO 7195:2020)
ISO/PWI 11320, Nuclear criticality safety - Emergency preparedness and response (revision ISO 11320:2011)
ISO/PWI 16510, Nuclear criticality safety – Mass control
ISO/PWI 26230, Techniques and Requirements for the Preservation, Treatment, and Analysis of Samples from Nuclear Facility Decommissioning
ISO/PWI 26231, Evaluation methods for the decommissioning quality of nuclear facilities
ISO/PWI 26232, Decommissioning of Linear Accelerators
Reactor technology
ISO/PWI 3579, Reactor technology — Nuclear Power Plants —Installation of Structural modules
ISO/PWI 4917-2, Design of nuclear power plants against seismic events - Part 2 - Geotechnical aspects
ISO/PWI 19243, Structural design criteria for in-vessel components of magnetic confinement fusion reactor via elastic analysis method
ISO/PWI 19326, Reactor technology — Fusion reactors — Design and assessment for remotely-handled components of magnetic confinement fusion reactor
ISO/PWI 19327, Reactor technology — Fusion reactors — design and assessment of remote maintenance system for divertor of magnetic confinement fusion reactor
ISO/PWI 26208, Fusion technology - Magnetic confinement fusion - Requirement for performance tests of superconducting magnet
ISO/PWI 26219, Lifting Equipment for nuclear facilities
ISO/PWI 26050, Zinc addition method for primary circuit of new pressurized reactor
3 - Proposals for new project under ballot
Terminology
The purpose is to establish a classification of challenging conditions to which HEPA filters may be designed and qualified to in nuclear facilities.
Radiological protection
ISO/NWIP 22929, Radiological protection - Monitoring and dose assessment for occupational exposures to tritium
The purpose is to establish analytical method of measuring total tritium and organically bound tritium for routine monitoring, accident situation.
Nuclear installations, processes and technologies
Reactor technology