GOST R 51429-1999 Fruit and vegetable juices. Method for determination of sodium, potassium, calcium and magnesium content by atomic absorption spectrometry
GOST R 51431-1999 Juice products. Method for determination of relative density
GOST R 51432-1999 Fruit and vegetable juices. Method for determination of ash content
ISO 3696:1987 Water for analytical laboratory use; Specification and test methods
GOST R 51429-1999 history
1999GOST R 51429-1999 Fruit and vegetable juices. Method for determination of sodium, potassium, calcium and magnesium content by atomic absorption spectrometry