GOST 28407.4-1989
Bismuth concentrate. Methods for determination of gold and silver

Standard No.

GOST 28407.4-1989

Release Date

1989

Published By

RU-GOST R

Latest

GOST 28407.4-1989

Scope

This standard applies to bismuth concentrates of all grades and establishes an assay-gravimetric method for determining m

GOST 28407.4-1989 Referenced Document

• GOST 10178-1985 Portland cement and portland blastfurnace slag cement. Specifications
• GOST 10929-1976 Reagents. Hydrogen peroxide. Specifications
• GOST 3778-1977 Lead. Specifications
• GOST 4168-1979 Reagents. Sodium nitrate. Specifications
• GOST 4233-1977 Reagents. Sodium chloride. Specifications
• GOST 4461-1977 Reagents. Nitric acid. Specifications
• GOST 4689-1974 Magnesite (periklase) brick of highest refractoriness. Specifications
• GOST 5100-1985 Technical soda ash. Specifications
• GOST 5789-1978 Reagents. Toluene. Specifications
• GOST 6613-1986 Square meshed woven wire cloths. Specifications
• GOST 6836-1980 Silver and silver alloys. Marks
• GOST 8429-1977 Borax. Specifications
• GOST 9147-1980 Laboratory porcelain ware and apparatus. Specifications*， 2024-04-20 Update

GOST 28407.4-1989 history

• 1989 GOST 28407.4-1989 Bismuth concentrate. Methods for determination of gold and silver