Testing of mineral oils; measurement of refractive index with the AbberefractometerEssai sur huiles minérales; mesure de l'indice de réfraction au moyen du réfractomètre d'Abbe
DIN 51423-2:1975 history
2010DIN 51423-2:2010-02 Testing of mineral oils - Part 2: Measurement of the relative refractive index with the Abbe-refractometer
2010DIN 51423-2:2010 Testing of mineral oils - Part 2: Measurement of the relative refractive index with the Abbe-refractometer
1975DIN 51423-2:1975 Testing of mineral oils; measurement of refractive index with the Abbe-refractometer