Explanatory notes
… to this Chapter : 3824.81 - - Containing oxirane (ethylene oxide) 3824.82 - - Containing polychlorinated biphenyls (PCBs), polychlorinated terphenyls (PCTs) or … (whether or not containing soap), e.g., based on calcium oxide, fatty acids, etc. (4) Non‑refractory mortars and …