ISO 6962:2004

Name: ISO 6962:2004 — Nuclear energy — Standard method for testing the long-term alpha irradiation stability of matrices for solidification of high-level radioactive waste
SKU: ISO 6962:2004
Price: 25 EUR
Availability: InStock

Nuclear energy — Standard method for testing the long-term alpha irradiation stability of matrices for solidification of high-level radioactive waste

Название (английский):

ISO 6962:2004

Nuclear energy — Standard method for testing the long-term alpha irradiation stability of matrices for solidification of high-level radioactive waste

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 8
Дата публикации:: 2 июля 2004 г.
Издание:: ISO IS 6962 edition 2 version 1
ICS:: 13.030.30

Тип поставки:

Full version25 €Ask AI2 €Read online 24h10 €Read online 72h15 €

Язык документа:

ruen

Срок поставки:1 рабочий день

Цена:25 €

Описание (английский):

ISO 6962:2004 specifies a method designed to check the long-term stability of a solid to alpha disintegration by detection of all modifications in the properties of an irradiated sample. The material favoured hitherto is a borosilicate glass, but possible alternatives include ceramics, glass-ceramics or other glass compositions.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты ISO

Overview - ISO 6962:2004 in brief

ISO 6962:2004 specifies a standardized laboratory method to assess the long-term alpha irradiation stability of solid matrices used to immobilize high‑level radioactive waste (HLW). The standard is focused on detecting any radiation‑induced changes in material properties over simulated repository timescales. While borosilicate glass is the historically favoured wasteform, ISO 6962 also applies to ceramics, glass‑ceramics and alternative glass compositions.

Key topics and technical requirements

Principle: Simulate long‑term alpha damage by incorporating (doping) short half‑life alpha emitters into realistic, compositionally representative samples rather than relying on external alpha beams. This reproduces recoil nucleus damage and helium production.

Dose calculation: Estimate the integrated alpha dose to simulate (recommendation: representative ages of the wasteform are on the order of 1 000–10 000 years) and compute the dopant concentration needed to reach that dose in a practical test period.

Choice of nuclide: Use short half‑lived alpha emitters (e.g., plutonium, americium, curium isotopes); the standard notes typical half‑life examples (Pu ~87.7 y, Am ~433 y, Cm isotopes ~163 d and ~18.1 y) and highlights solubility and segregation considerations during sample preparation.

Sample composition & preparation: Test samples must closely match industrial formulations. Verify uniform dopant distribution (autoradiography, microscopy) and ensure actinide partitioning matches the real matrix.

Measurements before, during and after storage:

Initial leach rate (Soxhlet/ISO 16797 suggested),
Density (Archimedes or flotation),
Stored energy (DTA/DSC),
Optical, SEM, X‑ray diffraction for microstructure/crystallography,
Calorimetry for heat release,
Optional: mechanical properties and helium release measurements.

Storage conditions: Typically room temperature in dry air or inert atmosphere; optional elevated‑temperature tests. Measure properties versus integrated alpha dose and report uncertainties.

Test report: Full description of composition, dopant/activity, preparation, storage profile, and results plotted as a function of alpha dose (Gy or dpa), with methods and precision documented.

Practical applications and users

ISO 6962:2004 is used by:

Nuclear wasteform developers and materials scientists evaluating borosilicate glass, ceramics or glass‑ceramics.

Reprocessing and waste management organizations conducting qualification and performance assessment for HLW forms.

Regulatory bodies and laboratories performing licensing support, safety case studies, and long‑term durability testing.

R&D teams comparing alternative matrices or studying radiation damage mechanisms.

ISO 6962:2004

Abstract

Похожие стандарты

Overview - ISO 6962:2004 in brief

Key topics and technical requirements

Practical applications and users

Related standards

Технические детали

ISO 16797:2004

Nuclear energy — Soxhlet-mode chemical durability test — Application to vitrified matrixes for high-level rad…

ISO 8212:1986

Soaps and detergents — Techniques of sampling during manufacture

ISO 20662:2020

Ships and marine technology — Hopper dredger supervisory and control systems

ISO 3021:2023

Adventure tourism — Hiking and trekking activities — Requirements and recommendations

ISO 3826-2:2008

Plastics collapsible containers for human blood and blood components — Part 2: Graphical symbols for use on l…

ISO/IEC 24730-1:2014

Information technology — Real-time locating systems (RTLS) — Part 1: Application programming interface (API)

ISO 8668-5:1992

Aircraft — Terminal junction systems — Part 5: Detail specification for type 3 system

ISO 7574-3:1985

Acoustics — Statistical methods for determining and verifying stated noise emission values of machinery and e…