Hlavní stránka>BS EN ISO 4491-2:2023 Metallic powders. Determination of oxygen content by reduction methods Loss of mass on hydrogen reduction (hydrogen loss)
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sklademVydáno: 2023-04-28
BS EN ISO 4491-2:2023
Metallic powders. Determination of oxygen content by reduction methods Loss of mass on hydrogen reduction (hydrogen loss)
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This standard BS EN ISO 4491-2:2023 Metallic powders. Determination of oxygen content by reduction methods is classified in these ICS categories:
77.160 Powder metallurgy
This document specifies a method for the determination of the relative loss of mass which a metallic powder undergoes when heated in a stream of pure dry hydrogen under specified conditions. The purpose of this test is to evaluate a chemical powder characteristic which is of importance to the powder metallurgical industry. The test is not intended as a means for the determination of the content of specific elements (see Annex A and ISO 4491-1). The test method is applicable to unalloyed, partially alloyed and completely alloyed powders of the metals listed in Table 1 (see 7.2.1). It is not applicable to lubricated powders or to mixtures of metal powders.
