| 90 | Optical instruments and apparatus, photographic, cinematographic, measuring, checking, precision, medical or surgical; parts and accessories |
| 9026 | Instruments and apparatus for measurement and control of flow, level, pressure or other variables of liquids or gases (for example, flow meters, level indicator, pressure gauge, heat meters), excluding instruments and apparatus of heading 9014, 9015, 902 |
| 902680 | Devices or other equipment for measurement and control of flow, level, pressure or other variables of liquids or gases except instruments and apparatus tov.pozitsii 9014,9015,9028,9032 |
| 9026802009 | Other instruments or apparatus, appliances and except apparartury heading 9014, 9015, 9028 or 9032 |