NBN EN ISO 4491-2 : 2ED 99
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POEDERS VAN METALEN - BEPALING VAN HET GEHALTE AAN ZUURSTOF DOOR REDUCTIEMETHODEN - DEEL 2: MASSAVERLIES DOOR WATERSTOFREDUCTIE (VERLIES IN WATERSTOF)
12-01-2013
Gives a method to determine the relative loss of mass which a metallic powder undergoes when heated in a stream of pure dry hydrogen under specific conditions. The test purpose is to evaluate a chemical powder characteristic which is of importance to the powder metallurgical industry. The test is not meant as a means to determine the content of specific elements. Applies to completely alloyed, partially alloyed and unalloyed powders of the metals listed. Does not apply to lubricated powders or mixtures of metal powders.
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