GOST 25542.5-1993
Alumina. Method for the determination of phosphorus oxide

Standard No.

GOST 25542.5-1993

Release Date

1993

Published By

RU-GOST R

Status

Be replaced 2019-06

Replace By

GOST 25542.5-2019

Latest

GOST 25542.5-2019

Replace

GOST 25542.5-1983

Scope

This standard applies to alumina and establishes a photometric method for the determination of phosphorus (V) oxide at a mass fraction of o

GOST 25542.5-1993 Referenced Document

• GOST 25542.0-1993 Alumina. General requirement for methods of chemical analysis
• GOST 3765-1978 Reagents. Ammonium molibdate. Specifications
• GOST 4198-1975 Reagents. Potassium dihydrogen phosphate. Specifications
• GOST 4199-1976 Reagents. 10-aqueous sodium tetraborate. Specifications
• GOST 4204-1977 Reagents. Sulphuric acid. Specifications
• GOST 83-1979 Reagents. Sodium carbonate. Specifications
• GOST 9656-1975 Reagents. Boric acid. Specifications*， 2024-04-17 Update
• GOST R 50332.1-1992 Alumina. Methods for the decomposition of test sample and the preparation of test solution

GOST 25542.5-1993 history

• 2019 GOST 25542.5-2019 Alumina. Methods for the determination of phosphorus oxide
• 1993 GOST 25542.5-1993 Alumina. Method for the determination of phosphorus oxide
• 1970 GOST 25542.5-1983 Alumina. Method for the determination of phosphorus pentoxide