URI
Notation
66
Caption
Chemical technology. Chemical and related industries
Scope Note
Under 66 is classed the industrial production of chemical and metallurgical products, as well as the processing of foodstuffs, other agricultural products and suchlike. Also under 66 are classed the products themselves: e.g. under 661 the products of the chemical industry in the strict sense, and under 664.8/.9 the products of the food preservation industry
Application Note
For details of construction machinery and equipment use special auxiliary numbers 62-1/-9
Broader class
6  APPLIED SCIENCES. MEDICINE. TECHNOLOGY
Narrower classes
66.01/.09Special auxiliary subdivision for chemical engineering
661Chemicals
662Explosives. Fuels
663Industrial microbiology. Industrial mycology. Zymurgy, fermentation industry. Beverage industry. Stimulant industry
664Production and preservation of solid foodstuffs
665Oils. Fats. Waxes. Adhesives. Gums. Resins
666Glass industry. Ceramics. Cement and concrete
667Colour industries
669Metallurgy