DIN ISO 4491-3:1990-06

Отменен

Metallic powders; determination of oxygen content by reduction methods; hydrogen-reducible oxygen; identical with ISO 4491-3:1989 — 7 стр.

Заменен на

DIN ISO 4491-3:1998-07

ICS

77.160 Powder. Including sintered metal materials and hardmetals / Порошковая металлургия