URI
Notation
665.6/.7
Caption
Processes and products of the petroleum and allied industries
Including
Hydrocarbon products
See also
621.8Machine elements. Motive power engineering. Materials handling. Fixings. Lubrication
662.7Fuel technology. Processed fuels
Broader class
665  Oils. Fats. Waxes. Adhesives. Gums. Resins
Narrower classes
665.6Mineral oil technology. Technology of petroleum and allied products
665.7Products of the mineral oil industry. Mineral oils and similar products