International Standard
ISO 622:2025
Coal and coke — Determination of phosphorus — Reduced molybdophosphate photometric method
Reference number
ISO 622:2025
Edition 3
2025-06
Preview
ISO 622:2025
86989
No disponible en español
Publicado (Edición 3, 2025)

ISO 622:2025

ISO 622:2025
86989
Idioma
Formato
CHF 67

Resumen

This document specifies a reduced molybdophosphate photometric method for the determination of the total phosphorus mass fraction of hard coal, lignites and coke. Two methods for taking the phosphorus into solution are specified, namely extraction from the coal or coke ash with acid or by repeated oxidation of the coal or coke, by acid, to remove carbonaceous matter.

Informaciones generales

  •  : Publicado
     : 2025-06
    : Norma Internacional publicada [60.60]
  •  : 3
     : 7
  • ISO/TC 27/SC 5
    73.040  75.160.10 
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