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Glavni meni

ISO 3706:1976

Phosphoric acid for industrial use (including foodstuffs) — Determination of total phosphorus (V) oxide content — Quinoline phosphomolybdate gravimetric method
1. 11. 1976.

Опште информације

90.93     29. 11. 2023.

ISO

ISO/TC 47

Međunarodni standard

67.220.20     71.060.30  

francuski   engleski  

Kupovina

Objavljen

Jezik na kome želite da primite dokument.

Apstrakt

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.

Životni ciklus

TRENUTNO

OBJAVLJEN
ISO 3706:1976
90.93 Odluka o potvrđivanju standarda
29. 11. 2023.