201352 Inorganic compounds n.e.c., including distilled water/ amalgams other than amalgams of precious metals

20135250 Distilled and conductivity water and water of similar purity 20135270 Compounds, inorganic or organic, of mercury, excluding amalgams 20135290 Other inorganic compounds n.e.c./ amalgams (excluding distilled and conductivity water and water of similar purity, liquid air and compressed air, those of precious metals)