GOST 22720.4-1977
Rare metals and their alloys. Method for the determination of nitrogen

Standard No.

GOST 22720.4-1977

Release Date

1977

Published By

RU-GOST R

Latest

GOST 22720.4-1977

GOST 22720.4-1977 Referenced Document

• GOST 10484-1978 Reagents. Hydrofluoric acid. Specifications*， 1978-12-22 Update
• GOST 10929-1976 Reagents. Hydrogen peroxide. Specifications
• GOST 14261-1977 Hydrochloric acid super pure. Specifications
• GOST 14262-1978 Super pure sulphuric acid. Specifications*， 1978-12-22 Update
• GOST 22720.0-1977 Rare metals and their alloys. General requirements for the methods of determination of oxygen, hydrogen, nitrogen and carbon
• GOST 3640-1979 Zinc. Specifications*， 1979-12-22 Update
• GOST 4145-1974 Reagents. Potassium sulphate. Specifications
• GOST 4165-1978 Reageuts. Copper II sulphate pentahydrate. Specifications*， 1978-12-22 Update
• GOST 4328-1977 Reagents. Sodium hydroxide. Specifications

GOST 22720.4-1977 history

• 1977 GOST 22720.4-1977 Rare metals and their alloys. Method for the determination of nitrogen