29211940 --- 1,1,3,3-Tetramethylbutylamine
90181400 -- Scintigraphic apparatus
91081100 -- With mechanical display only or with a device to which a mechanical display can be incorporated
90158020 -- Meteorological, hydrological and geophysical instruments and apparatus
27109100 -- Containing polychlorinated biphenyls (PCBs), polychlorinated terphenyls (PCTs) or polybrominated biphenyls (PBBs)