URI
Notation
662.6/.9
Caption
Heat economy. Fuel economy. Fuels. Heating
See also
536Heat. Thermodynamics. Statistical physics
62-6Fuel and other heat-source characteristics of machinery and installations
621.4Heat engines (except steam engines)
66.04Heat treatment operations and equipment
Broader class
662  Explosives. Fuels
Narrower classes
662.6Heat or fuel economy in general. Combustion. Natural fuels
662.7Fuel technology. Processed fuels
662.8Mechanical treatment for solidification of fuels. Briquetting
662.9Furnace and combustion engineering