BS EN ISO 4491-2:2023
Metallic powders. Determination of oxygen content by reduction methods Loss of mass on hydrogen reduction (hydrogen loss) (British Standard)
- Standard No.
- BS EN ISO 4491-2:2023
- Published By
- American National Standards Institute （ANSI)
- Latest
- BS EN ISO 4491-2:2023
- Scope
- 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.
BS EN ISO 4491-2:2023 history
- 1970 BS EN ISO 4491-2:2023 Metallic powders. Determination of oxygen content by reduction methods Loss of mass on hydrogen reduction (hydrogen loss) (British Standard)
- 1999 BS EN ISO 4491-2:1999 Metallic powders - Determination of oxygen content by reduction methods - Loss of mass on hydrogen reduction (hydrogen loss)
