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ASTM
ASTM C1494-13(2024)
Действует
Standard Test Methods for Determination of Mass Fraction of Carbon, Nitrogen, and Oxygen in Silicon Nitride Powder — 5 стр.
ASTM D5502-21
Действует
Standard Test Method for Apparent Density by Physical Measurements of Manufactured Anode and Cathode Carbon Used by the Aluminum Industry — 3 стр.