This standard establishes a flame photometric method for the determination of potassium (with a mass fraction of potassium from 0.002 to 0.02%). The method is based on
GOST 3240.11-1976 Referenced Document
GOST 11125-1984 Super pure nitric acid. Specifications*， 1984-04-19 Update
GOST 14261-1977 Hydrochloric acid super pure. Specifications*， 1977-04-19 Update
GOST 25086-1987 Nonferrous metals and their alloys. General requirements for methods of analysis*， 1987-04-19 Update
GOST 3240.0-1976 Magnesium alloys. General requirements for methods of analysis
GOST 4517-1987 Reagents. Methods for preparation of accessory reagents and solutions used for analysis*， 1987-04-19 Update
GOST 5457-1975 Dissolved acetylene and gaseous acetylene for technical purposes. Specifications*， 2024-04-19 Update