Fruit and vegetable juices - Determination of sodium, potassium, calcium and magnesium content by atomic absorption spectrophotometry (AAS); German version EN 1134:1994— 7 стр.
Fruit and vegetable juices - Enzymatic determination of L-malic acid (L-malate) content - NADH spectrometric method; German version EN 1138:1994— 5 стр.
Fruit and vegetable juices - Enzymatic determination of D-glucose and D-fructose content - NADPH spectrometric method; German version EN 1140:1994— 6 стр.