Abstract: A method of powder-metallurgical production of objects, specifically tubes, rods, or the like, wherein a metal and/or metal alloy powder is charged into a thin-walled capsule is provided. The capsule is closed and exposed to a cold-isostatic pressure so as to form a compression of the capsule for subsequent hot-working, specifically hot extrusion. Prior to the cold-isostatic pressure, a mixture of nitrogen and hydrogen is introduced into the capsule together with the powder of metal and/or metal alloys. Simultaneously, pre-compaction of the powder is created by way of vibration or the like, to a density of approximately 60 t0 80% such as, in particular 70% of the theoretical density. After the cold-isostatic pressing step, the capsule is subjected to porosity or leakage testing in a vacuum chamber to monitor or establish the escape of hydrogen. Non-leaking capsules or pressings are then heated and subjected to hot-working such as hot extrusion.