International Standard
ISO 6851:2001
Photography — Processing waste — Determination of total amino nitrogen (microdiffusion Kjeldahl method)
Reference number
ISO 6851:2001
Edición 2
2001-12
International Standard
Vista previa
ISO 6851:2001
32493
No disponible en español
Publicado (Edición 2, 2001)
Esta norma se revisó y confirmó por última vez en 2021. Por lo tanto, esta versión es la actual.

ISO 6851:2001

ISO 6851:2001
32493
Idioma
Formato
CHF 63
Convertir Franco suizo (CHF) a tu moneda

Resumen

This International Standard specifies a method for the determination of the total organic nitrogen, as well as any

ammoniacal nitrogen, present in photographic processing wastes by the Kjeldahl method.

Total Kjeldahl nitrogen can be determined in photographic processing wastes in the range of 10 mg/l to 200 mg/l as

ammonia, or in the range of 8 mg/l to 160 mg/l in terms of nitrogen. If ammoniacal nitrogen (see ISO 6853) is

determined separately and subtracted, the concentration of organic amino nitrogen can be established.

Informaciones generales

  •  : Publicado
     : 2001-12
    : Norma Internacional confirmada [90.93]
  •  : 2
     : 10
  • ISO/TC 42
  • RSS actualizaciones

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