GOST 7619.4-1981
Fluorite. Method for the determination of silicon dioxide content

Standard No.

GOST 7619.4-1981

Release Date

1981

Published By

RU-GOST R

Latest

GOST 7619.4-1981

Replace

GOST 7619.4-1972

Scope

This standard applies to fluorspar and specifies a spectrophotometric method for the determination of silica at m

GOST 7619.4-1981 Referenced Document

• GOST 3118-1977 Reagents. Hydrochloric acid. Specifications
• GOST 3765-1978 Reagents. Ammonium molibdate. Specifications
• GOST 4204-1977 Reagents. Sulphuric acid. Specifications
• GOST 4332-1976 Reagents. Potassium sodium carbonate. Specifications
• GOST 4463-1976 Reagents. Sodium fluoride. Specifications
• GOST 7618-1983 Fluorite. Marks and technical requirements*， 1983-04-19 Update
• GOST 7619.0-1981 Fluorite. Methods of chemical analysis. General requirements
• GOST 9656-1975 Reagents. Boric acid. Specifications*， 2024-04-19 Update
• ISO 5438:1985 Acid-grade and ceramic-grade fluorspar — Determination of silica content — Reduced molybdosilicate spectrometric method*， 1985-06-20 Update

GOST 7619.4-1981 history

• 1981 GOST 7619.4-1981 Fluorite. Method for the determination of silicon dioxide content
• 0000 GOST 7619.4-1972