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ISO 23596:2023PublishedRare earth — Determination of rare earth content in individual rare earth metals and their compounds — Gravimetric methodISO 23597:2023PublishedRare earth — Determination of rare earth content in individual rare earth metals and their oxides — Titration methodISO 24548:2025PublishedRare earth — Determination of moisture content in rare earth products — Gravimetric methodISO/FDIS 4935Under developmentSteel and iron — Determination of sulfur content — Infrared absorption method after combustion in an induction furnaceISO/DIS 25515Under developmentDetermination of composition of Selective Catalytic Reduction (SCR) catalysts by wavelength dispersive X-ray Fluorescence (XRF)