KS M ISO 5940-2:2016 Carbonaceous materials used in the production of aluminium-Pitch for electrodes-Part 2:Determination of the softening point (Mettler softening point method)
2016KS M ISO 5940-2:2016 Carbonaceous materials used in the production of aluminium-Pitch for electrodes-Part 2:Determination of the softening point (Mettler softening point method)
2011KS M ISO 5940-2:2011 Carbonaceous materials used in the production of aluminium-Pitch for electrodes-Part 2:Determination of the softening point (Mettler softening point method)