Methods of test for petroleum and its products, Determination of polycyclic aromatics in unused lubricating base oils and asphaltene free petroleum fractions. Dimethyl sulphoxide extraction refractive index method— 8 стр.
Methods of sampling and test for carbonaceous materials used in aluminium manufacture, Electrodes, Determination of the bulk density (apparent density) of cathode blocks and prebaked anodes using a dimensions method— 12 стр.
