STAS SR ISO 1620:1995
Cryolite, natural and artificial — Determination of silica content — Reduced molybdosilicate spectrophotometric method

Standard No.

STAS SR ISO 1620:1995

Release Date

1995

Published By

RO-ASRO

Latest

STAS SR ISO 1620:1995

Scope

Prezentul Standard Interna?ional stabile?te metoda spectrofotometric? cu molibdosilicat redus pentru determinarea con?inutului de silice din criolit? natural? ?i sintetic?, ca ?i din produsele naturale ?i sintetice cu raport molar (NaF/AIF3) cuprins ?ntre aproximativ 3 ?i 1,7. Metoda se aplic? produselor al c?ror con?inut ?n oxid de fosfor (V) (P2O5) nu dep??e?te 0,2% (m/m).

STAS SR ISO 1620:1995 history

• 1995 STAS SR ISO 1620:1995 Cryolite, natural and artificial — Determination of silica content — Reduced molybdosilicate spectrophotometric method