| Standard International Trade Classification (SITC) - level 2 - Division | 59 | Chemical materials and products, n.e.s. | 
                
                  
                    | Standard International Trade Classification (SITC) - level 4 - Sub-group | 5991 | Municipal waste; sewage sludge | 
                
                  
                    | Standard International Trade Classification (SITC) - level 4 - Sub-group | 5992 | Clinical waste | 
                
                  
                    | Standard International Trade Classification (SITC) - level 4 - Sub-group | 5993 | Waste organic solvents | 
                
                  
                    | Standard International Trade Classification (SITC) - level 4 - Sub-group | 5994 | Wastes of metal pickling liquors, hydraulic, brake and anti-freeze fluids | 
                
                  
                    | Standard International Trade Classification (SITC) - level 4 - Sub-group | 5999 | Other wastes from chemical or allied industries |