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dnaSRPS 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/FDIS 12800:2026)

General information

50.20     Sep 17, 2026

50.60    Nov 11, 2026

ISS

Z085

European Norm

27.120.30  

English  

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
dnaSRPS EN ISO 12800:2025
50.20 Proof sent to secretariat or FDIS ballot initiated: 8 weeks
Sep 17, 2026

Related project

Adopted from FprEN ISO 12800 IDENTICAL

Adopted from ISO/FDIS 12800 IDENTICAL

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