| Harmonised Commodity Description and Coding System (HS) - level 2 - Chapter | 
                    90 | 
                    Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof | 
                  
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 
                    902610 | 
                    Instruments and apparatus for measuring or checking the flow or level of liquids (excl. meters and regulators) | 
                  
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 
                    902620 | 
                    Instruments and apparatus for measuring or checking pressure of liquids or gases (excl. regulators) | 
                  
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 
                    902680 | 
                    Instruments or apparatus for measuring or checking variables of liquids or gases, n.e.s. | 
                  
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 
                    902690 | 
                    Parts and accessories for instruments and apparatus for measuring or checking the flow, level, pressure or other variables of liquids or gases, n.e.s. |