Објављен
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.
ПОВУЧЕН
ISO 4491-2:1997
ОБЈАВЉЕН
ISO 4491-2:2023
60.60
Стандард објављен
19. 4. 2023.
Метални прахови – Одређивање садржаја кисеоника редукционим методама – Део 2: Губитак масе при редукцији водоником (смањење масе водоника)
60.60 Стандард објављен