Објављен
ISO 20203:2005 describes a test method for the determination of the mean crystallite height of a representative, pulverized sample of calcined petroleum coke by interpretation of an X-ray diffraction pattern produced through conventional X-ray scanning techniques.
ISO 20203:2005 applies to carbonaceous materials used in the production of aluminium.
ОБЈАВЉЕН
ISO 20203:2005
90.93
Одлука о потврђивању стандарда
18. 3. 2026.