Norm

NEN-ISO 4491-4:1993 en

Poeders van metalen - Bepaling van het gehalte aan zuurstof door de reductiemethode - Deel 4: Totale gehalte aan zuurstof door reductie-extractie

  • Deze norm is ingetrokken sinds 28-05-2013

31,57

Over deze norm

Status Ingetrokken
Aantal pagina's 4
Commissie Metalen algemeen
Gepubliceerd op 01-06-1993
Taal Engels
This part of the standard specifies a method for the determination of the total oxygen content of metallic powders in concentrations up to 2 percent (m/m) by reduction-extraction at high temperature. By agreement, this method is also applicable to the determination of the total oxygen content of sintered metal materials. The method is applicable to all powders of metals, alloys, carbides and mixtures thereof which are non-volatile under the test conditions. The sample may be in powder or compact form. The analysis is carried out on the powder as supplied, but the method is not applicable if the powder contains a lubricant or binder. If such substances are present, the method may be used only if they can first be completely removed by a method not affecting the oxygen content of the powder. This part of ISO 4491 shall be read in conjunction with ISO 4491-1.

Details

ICS-code 77.160
Nederlandse titel Poeders van metalen - Bepaling van het gehalte aan zuurstof door de reductiemethode - Deel 4: Totale gehalte aan zuurstof door reductie-extractie
Engelse titel Metallic powders - Determination of oxygen content by reduction methods - Part 4: Total oxygen by reduction-extraction
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