International Standard
ISO 3706:1976
Phosphoric acid for industrial use (including foodstuffs) — Determination of total phosphorus (V) oxide content — Quinoline phosphomolybdate gravimetric method
Reference number
ISO 3706:1976
Edición 1
1976-11
International Standard
Vista previa
ISO 3706:1976
9181
No disponible en español
Publicado (Edición 1, 1976)
Esta norma se revisó y confirmó por última vez en 2023. Por lo tanto, esta versión es la actual.

ISO 3706:1976

ISO 3706:1976
9181
Idioma
Formato
CHF 42
Convertir Franco suizo (CHF) a tu moneda

Resumen

Applicable to products whether or not they are homogeneous and whether or not they contain polyphosphoric acids. Specifies preliminary hydrolysis of the polyphosphoric acids by boiling in the presence of hydrochloric acid. The precipitation of the phosphoric acid is carried out in the form of quinoline phosphomolybdate in the presence of acetone. Filtration by a filter crucible, washing, drying and weighing of the precipitate.

Informaciones generales

  •  : Publicado
     : 1976-11
    : Norma Internacional confirmada [90.93]
  •  : 1
     : 3
  • ISO/TC 47
  • RSS actualizaciones

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)