International Standard
ISO 10702:1993
Steel and iron — Determination of nitrogen content — Titrimetric method after distillation
Reference number
ISO 10702:1993
Edición 1
1993-07
International Standard
Vista previa
ISO 10702:1993
18791
No disponible en español
Publicado (Edición 1, 1993)
Esta norma se revisó y confirmó por última vez en 2023. Por lo tanto, esta versión es la actual.

ISO 10702:1993

ISO 10702:1993
18791
Idioma
Formato
CHF 63
Convertir Franco suizo (CHF) a tu moneda

Resumen

The principle of the method specified is dissolving a test portion in hydrochloric acid followed by oxidation with hydrogen peroxide, fuming of the acid-insoluble residue in sulfuric acid with potassium sulfate and copper(II) sulfate, distilling the solution made alkaline with sodium hydroxide, collecting ammonia in a receiver containing orthoboric acid solution, titration of the ammonium ion with amidosulfuric acid. Is applicable to nitrogen contents from 0,002 % (m/m) to 0,5 % (m/m); does not apply to samples containing silicon nitride.

Informaciones generales

  •  : Publicado
     : 1993-07
    : Norma Internacional confirmada [90.93]
  •  : 1
     : 9
  • ISO/TC 17/SC 1
    77.080.01 
  • RSS actualizaciones

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