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naSRPS EN ISO 12800:2025

Nuclear fuel technology - Guidelines on the measurement of the specific surface area of uranium dioxide and plutonium dioxide powders by the BET method (ISO/DIS 12800:2026)

General information

40.20     Jan 8, 2026

40.60    Mar 12, 2026

ISS

Z085

European Norm

27.120.30  

English  

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Scope

ISO 12800:2017 gives guidelines on the determination of the specific surface area of as-fabricated uranium dioxide powder by volumetric or gravimetric determination of the amount of nitrogen adsorbed on the powder, and can be applied to other similar materials, e.g. U3O8, UO2-PuO2 powders, and other bodies with similar surface areas, e.g. powder granules or green pellets, provided that the conditions described are fulfilled. Modifications using other adsorbing gases are included.
The method is relevant as long as the expected value is in the range between 1 m2/g and 10 m2/g.

Life cycle

PREVIOUSLY

PUBLISHED
SRPS EN ISO 12800:2019

NOW

PROJECT
naSRPS EN ISO 12800:2025
40.20 DIS ballot initiated: 12 weeks
Jan 8, 2026

Related project

Adopted from prEN ISO 12800 IDENTICAL

Adopted from ISO/DIS 12800 IDENTICAL

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