Fruit and vegetable juices - Enzymatic determination of D- and L-lactic acid (lactate) content - NAD spectrometric method; German version EN 12631:1999— 9 стр.
Accuracy (trueness and precision) of measurement methods and results - Part 5: Alternative methods for the determination of the precision of a standard measurement method (ISO 5725-5:1998), Corrigenda to DIN ISO 5725-5:2002-11 (ISO 5725-5:1998/Cor. 1:2005)— 2 стр.