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.
Status: PublishedPublication date: 2023-04
Edition: 3Number of pages: 8
Technical Committee: ISO/TC 119/SC 2 Sampling and testing methods for powders (including powders for hardmetals)
- ICS :
- 77.160 Powder metallurgy
This standard contributes to the following Sustainable Development Goals:
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ISO 4491-2:2023Stage: 60.60
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