URI
Notation
664
Caption
Production and preservation of solid foodstuffs
See also
667.7Colouring, staining etc., of various materials (except printing and painting)
Broader class
66  Chemical technology. Chemical and related industries
Narrower classes
664.1Sugar. Molasses. Glucose etc.
664.2Starch. Amylaceous materials
664.3Edible oils and fats. Margarine. Protein foodstuffs
664.4Edible minerals
664.5Spices. Condiments
664.6/.7Technology and processing of cereal grains
664.8/.9Food preservation technique