27.190: Biological sources and alternative sources of energy

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      • 11.040.01: Medical equipment in general
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      • 11.040.99: Other medical equipment
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    • 11.080: Sterilization and disinfection
    • 11.100: Laboratory medicine
    • 11.120: Pharmaceutics
    • 11.140: Hospital equipment
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      • 11.180.15: Aids for deaf and hearing impaired people
  • 13.000: Environment and health protection. Safety +
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      • 13.020.30: Environmental impact assessment
      • 13.020.60: Product life-cycles
    • 13.030: Wastes
    • 13.040: Air quality +
      • 13.040.01: Air quality in general
      • 13.040.40: Stationary source emissions
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      • 13.060.01: Water quality in general
      • 13.060.60: Examination of water for physical properties
    • 13.080: Soil quality. Pedology +
      • 13.080.20: Physical properties of soil
    • 13.100: Occupational safety. Industrial hygiene
    • 13.180: Ergonomics
    • 13.220: Protection against fire +
      • 13.220.01: General standards related to fire protection
      • 13.220.20: Fire protection
      • 13.220.40: Ignitability and burning behaviour of materials and products
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    • 13.230: Explosion protection
    • 13.260: Protection against electric shock. Live working
    • 13.280: Radiation protection
    • 13.310: Protection against crime
    • 13.320: Alarm and warning systems
    • 13.340: Protective equipment +
      • 13.340.10: Protective clothing
      • 13.340.60: Protection against falling and slipping
  • 17.000: Metrology and measurement. Physical phenomena +
    • 17.020: Metrology and measurement in general
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    • 17.120: Measurement of fluid flow
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      • 17.220.01: Electricity. Magnetism. General aspects
      • 17.220.20: Measurement of electrical and magnetic quantities
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    • 19.080: Electrical and electronic testing
    • 19.100: Non-destructive testing
  • 21.000: Mechanical systems and components for general use +
    • 21.040: Screw threads
    • 21.060: Fasteners +
      • 21.060.10: Bolts, screws, studs
      • 21.060.20: Nuts
    • 21.100: Bearings
    • 21.120: Shafts and couplings
    • 21.220: Flexible drives and transmissions
  • 23.000: Fluid systems and components for general use +
    • 23.020: Fluid storage devices
    • 23.040: Pipeline components and pipelines +
      • 23.040.01: Pipeline components and pipelines in general
      • 23.040.99: Other pipeline components
    • 23.060: Valves +
      • 23.060.40: Pressure regulators
    • 23.100: Fluid power systems
  • 25.000: Manufacturing engineering +
    • 25.040: Industrial automation systems +
      • 25.040.01: Industrial automation systems in general
      • 25.040.30: Industrial robots. Manipulators
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    • 25.100: Cutting tools
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    • 25.140: Hand-held tools +
      • 25.140.20: Electric tools
    • 25.160: Welding, brazing and soldering
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      • 25.180.10: Electric furnaces
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      • 25.220.01: Surface treatment and coating in general
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      • 27.060.01: Burners and boilers in general
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      • 27.120.01: Nuclear energy in general
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      • 27.120.20: Nuclear power plants. Safety
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      • 27.120.99: Other standards related to nuclear energy
    • 27.140: Hydraulic energy engineering
    • 27.160: Solar energy engineering
    • 27.180: Wind turbine energy systems
    • 27.190: Biological sources and alternative sources of energy
    • 27.200: Refrigerating technology
  • 29.000: Electrical engineering +
    • 29.020: Electrical engineering in general
    • 29.030: Magnetic materials
    • 29.035: Insulating materials +
      • 29.035.01: Insulating materials in general
      • 29.035.10: Paper and board insulating materials
      • 29.035.20: Plastic and rubber insulating materials
    • 29.040: Insulating fluids +
      • 29.040.10: Insulating oils
      • 29.040.20: Insulating gases
    • 29.060: Electrical wires and cables +
      • 29.060.01: Electrical wires and cables in general
      • 29.060.10: Wires
      • 29.060.20: Cables
    • 29.080: Insulation +
      • 29.080.01: Insulation in general
      • 29.080.10: Insulators
      • 29.080.20: Bushings
      • 29.080.30: Insulation systems
      • 29.080.99: Other standards related to insulators
    • 29.100: Components for electrical equipment +
      • 29.100.01: Components for electrical equipment in general
      • 29.100.10: Magnetic components
      • 29.100.20: Electrical and electromechanical components
      • 29.100.99: Other components for electrical equipment
    • 29.120: Electrical accessories +
      • 29.120.10: Conduits for electrical purposes
      • 29.120.20: Connecting devices
      • 29.120.30: Plugs, socket-outlets, couplers
      • 29.120.40: Switches
      • 29.120.50: Fuses and other overcurrent protection devices
      • 29.120.70: Relays
      • 29.120.99: Other electrical accessories
    • 29.130: Switchgear and controlgear +
      • 29.130.01: Switchgear and controlgear in general
      • 29.130.10: High voltage switchgear and controlgear
      • 29.130.20: Low voltage switchgear and controlgear
      • 29.130.99: Other switchgear and controlgear
    • 29.140: Lamps and related equipment +
      • 29.140.01: Lamps and related equipment in general
      • 29.140.30: Fluorescent lamps. Discharge lamps
    • 29.160: Rotating machinery +
      • 29.160.01: Rotating machinery in general
      • 29.160.10: Components for rotating machinery
      • 29.160.20: Generators
      • 29.160.30: Motors
      • 29.160.40: Generating sets
      • 29.160.99: Other standards relating to rotating machinery
    • 29.180: Transformers. Reactors
    • 29.200: Rectifiers. Converters. Stabilized power supply
    • 29.220: Galvanic cells and batteries +
      • 29.220.01: Galvanic cells and batteries in general
      • 29.220.10: Primary cells and batteries
      • 29.220.20: Acid secondary cells and batteries
      • 29.220.30: Alkaline secondary cells and batteries
      • 29.220.99: Other cells and batteries
    • 29.240: Power transmission and distribution networks +
      • 29.240.01: Power transmission and distribution networks in general
      • 29.240.10: Substations. Surge arresters
      • 29.240.20: Power transmission and distribution lines
      • 29.240.30: Control equipment for electric power systems
      • 29.240.99: Other equipment related to power transmission and distribution networks
      • 29.240: Power transmission and distribution networks in General
    • 29.260: Electrical equipment for working in special conditions +
      • 29.260.20: Electrical installations for explosive atmospheres
      • 29.260.99: Other electrical equipment for working in special conditions
    • 29.280: Electric traction equipment
  • 31.000: Electronics +
    • 31.020: Electronic components in general
    • 31.040: Resistors +
      • 31.040.01: Resistors in general
    • 31.060: Capacitors +
      • 31.060.60: Variable capacitors
      • 31.060.70: Power capacitors
      • 31.060.99: Other capacitors
    • 31.080: Semiconductor devices +
      • 31.080.01: Semiconductor devices in general
      • 31.080.10: Diodes
      • 31.080.20: Thyristors
      • 31.080.30: Transistors
      • 31.080.99: Other semiconductor devices
    • 31.120: Electronic display devices
    • 31.140: Piezoelectric devices
    • 31.160: Electric filters
    • 31.180: Printed circuits and boards
    • 31.190: Electronic component assemblies
    • 31.200: Integrated circuits. Microelectronics
    • 31.220: Electromechanical components for electronic and telecommunications equipment +
      • 31.220.01: Electromechanical components for electronic and telecommunications equipment in general
      • 31.220.10: Plug-and-socket devices
      • 31.220.99: Other electromechanical components
      • 31.220: Electromechanical components for electronic and telecommunications equipment in General
    • 31.240: Mechanical structures for electronic equipment
    • 31.260: Optoelectronics. Laser equipment
  • 33.000: Telecommunications. Audio and video engineering +
    • 33.020: Telecommunications in general
    • 33.040: Telecommunication systems +
      • 33.040.01: Telecommunication systems
      • 33.040.20: Transmission systems
      • 33.040.30: Switching and signalling systems
      • 33.040.35: Telephone networks
      • 33.040.40: Data communication networks
      • 33.040.50: Lines, connections and circuits
      • 33.040.60: Powerline telecommunications
    • 33.050: Telecommunication terminal equipment +
      • 33.050.10: Telephone equipment
      • 33.050.30: Equipment for telex, teletext, telefax
    • 33.060: Radiocommunications +
      • 33.060.01: Radiocommunications in general
      • 33.060.20: Receiving and transmitting equipment
      • 33.060.30: Radio relay and fixed satellite communications systems
      • 33.060.99: Other equipment for radiocommunications
    • 33.070: Mobile services +
      • 33.070.01: Mobile services in general
      • 33.070.50: Global System for Mobile Communication (GSM)
      • 33.070.99: Other mobile services
    • 33.100: Electromagnetic compatibility (EMC) +
      • 33.100.01: Electromagnetic compatibility (EMC) in general
      • 33.100.10: Emission
      • 33.100.20: Immunity
    • 33.120: Components and accessories for telecommunication equipment +
      • 33.120.01: Components and accessories in general
      • 33.120.10: Coaxial cables. Waveguides
      • 33.120.20: Wires and symmetrical cables
      • 33.120.40: Aerials
      • 33.120.99: Other components and accessories
    • 33.140: Special measuring equipment for use in telecommunications
    • 33.160: Audio, video and audiovisual engineering +
      • 33.160.01: Audio, video and audiovisual engineering in general
      • 33.160.10: Amplifiers
      • 33.160.25: Television receivers
      • 33.160.40: Video systems
      • 33.160.99: Other audio, video and audiovisual equipment
    • 33.170: Television and radio broadcasting
    • 33.180: Fibre optic communications +
      • 33.180.01: Fibre optic systems in general
      • 33.180.10: Fibres and cables
      • 33.180.20: Fibre optic interconnecting devices
      • 33.180.99: Other fibre optic equipment
    • 33.200: Telecontrol. Telemetering
  • 35.000: Information technology. Office machines +
    • 35.020: Information technology in general
    • 35.040: Character sets and information coding
    • 35.060: Languages used in information technology
    • 35.080: Software
    • 35.100: Open systems interconnection (OSI) +
      • 35.100.01: Open systems interconnection in general
      • 35.100.05: Multilayer applications
      • 35.100.10: Physical layer
      • 35.100.20: Data link layer
      • 35.100.40: Transport layer
      • 35.100.50: Session layer
      • 35.100.60: Presentation layer
      • 35.100.70: Application layer
    • 35.110: Networking
    • 35.140: Computer graphics
    • 35.160: Microprocessor systems
    • 35.180: IT terminal and other peripheral equipment
    • 35.200: Interface and interconnection equipment
    • 35.220: Data storage devices +
      • 35.220.01: Data storage devices in general
      • 35.220.99: Other data storage devices
    • 35.240: Applications of information technology +
      • 35.240.01: Applications of information technology in general
      • 35.240.15: Identification cards and related devices
      • 35.240.30: IT applications in information, documentation and publishing
      • 35.240.40: IT applications in banking
      • 35.240.50: IT applications in industry
      • 35.240.60: IT applications in transport and trade
      • 35.240.70: IT applications in science
      • 35.240.80: IT applications in health care technology
      • 35.240.99: IT applications in other fields
      • 35.240: Applications of information technology in General
  • 37.000: Image technology +
    • 37.040: Photography +
      • 37.040.01: Photography in general
      • 37.040.10: Photographic equipment. Projectors
      • 37.040.99: Other standards related to photography
    • 37.060: Cinematography +
      • 37.060.99: Other standards related to cinematography
    • 37.100: Graphic technology +
      • 37.100.10: Reproduction equipment
  • 39.000: Precision mechanics. Jewellery +
    • 39.040: Horology +
      • 39.040.99: Other time-measuring instruments
  • 43.000: Road vehicle engineering +
    • 43.020: Road vehicles in general
    • 43.040: Road vehicle systems +
      • 43.040.10: Electric and electronic equipment
      • 43.040.15: Car informatics. On-board computer systems
    • 43.060: Internal combustion engines for road vehicles
    • 43.080: Commercial vehicles
    • 43.120: Electric road vehicles
  • 45.000: Railway engineering +
    • 45.020: Railway engineering in general
    • 45.060: Railway rolling stock +
      • 45.060.01: Railway rolling stock in general
      • 45.060.10: Tractive stock
      • 45.060.20: Trailing stock
  • 47.000: Shipbuilding and marine structures +
    • 47.020: Shipbuilding and marine structures in general +
      • 47.020.60: Electrical equipment for ships or marine structures
      • 47.020.70: Navigation and control equipment
  • 49.000: Aircraft and space vehicle engineering +
    • 49.020: Aircraft and space vehicles in general
    • 49.025: Materials for aerospace construction
    • 49.030: Fasteners for aerospace construction
    • 49.060: Aerospace electric equipment and systems
    • 49.090: On-board equipment and instruments
    • 49.140: Space systems and operations
  • 53.000: Materials handling equipment +
    • 53.020: Lifting equipment
    • 53.040: Continuous handling equipment
  • 55.000: Packaging and distribution of goods +
    • 55.180: Freight distribution of goods +
      • 55.180.40: Complete, filled transport packages
    • 55.200: Packaging machinery
    • 55.220: Storing. Warehousing
  • 59.000: Textile and leather technology +
    • 59.060: Textile fibres
    • 59.080: Products of the textile industry
    • 59.100: Materials for the reinforcement of composites
    • 59.120: Textile machinery
    • 59.140: Leather technology
  • 61.000: Clothing industry
  • 65.000: Agriculture +
    • 65.020: Farming and forestry
    • 65.040: Farm buildings, structures and installations
    • 65.060: Agricultural machines, implements and equipment +
      • 65.060.01: Agricultural machines, implements and equipment in general
      • 65.060.35: Irrigation and drainage equipment
    • 65.100: Pesticides and other agrochemicals
  • 67.000: Food technology +
    • 67.040: Food products in general
    • 67.080: Fruits and vegetables
    • 67.100: Milk and milk products
    • 67.120: Meat, meat products and other animal produce
    • 67.140: Tea. Coffee. Cocoa
    • 67.160: Beverages
    • 67.180: Sugar. Sugar products. Starch
    • 67.200: Edible oils and fats. Oilseeds
    • 67.220: Spices and condiments. Food additives
  • 71.000: Chemical technology +
    • 71.040: Analytical chemistry +
      • 71.040.50: Physicochemical methods of analysis
    • 71.060: Inorganic chemicals
    • 71.080: Organic chemicals
    • 71.100: Products of the chemical industry +
      • 71.100.50: Wood-protecting chemicals
    • 71.120: Equipment for the chemical industry +
      • 71.120.01: Equipment for the chemical industry in general
  • 73.000: Mining and minerals +
    • 73.060: Metalliferrous minerals and their concentrates
    • 73.100: Mining equipment
  • 75.000: Petroleum and related technologies +
    • 75.160: Fuels
    • 75.180: Equipment for petroleum and natural gas industries +
      • 75.180.10: Exploratory and extraction equipment
    • 75.200: Petroleum, petroleum products and natural gas handling equipment
  • 77.000: Metallurgy +
    • 77.040: Testing of metals
    • 77.060: Corrosion of metals
    • 77.080: Ferrous metals
    • 77.120: Non-ferrous metals
    • 77.140: Iron and steel products
    • 77.150: Products of non-ferrous metals
  • 79.000: Wood technology +
    • 79.060: Wood-based panels
    • 79.080: Semi-manufactures of timber
    • 79.120: Woodworking equipment
  • 81.000: Glass and ceramics industry +
    • 81.040: Glass
    • 81.060: Ceramics
    • 81.100: Equipment for the glass and ceramics industries
  • 83.000: Rubber and plastics industries +
    • 83.040: Raw materials for rubber and plastics
    • 83.080: Plastics
    • 83.140: Rubber and plastic products
    • 83.160: Tyres
  • 85.000: Paper technology +
    • 85.080: Paper products
  • 87.000: Paint and colour industries +
    • 87.060: Paint ingredients +
      • 87.060.30: Solvents
  • 91.000: Construction materials and building +
    • 91.010: Construction industry
    • 91.040: Buildings +
      • 91.040.20: Buildings for commerce and industry
    • 91.060: Elements of buildings
    • 91.080: Structures of buildings
    • 91.100: Construction materials +
      • 91.100.10: Cement. Gypsum. Lime. Mortar
    • 91.120: Protection of and in buildings +
      • 91.120.25: Seismic and vibration protection
      • 91.120.40: Lightning protection
    • 91.140: Installations in buildings +
      • 91.140.01: Installations in buildings in general
      • 91.140.50: Electricity supply system
    • 91.160: Lighting +
      • 91.160.01: Lighting in general
  • 93.000: Civil engineering +
    • 93.080: Road engineering
    • 93.100: Construction of railways
  • 95.000: Military engineering +
    • 95.020: Military engineering. Military affairs. Weapons
  • 97.000: Domestic and commercial equipment. Entertainment. Sports +
    • 97.030: Domestic electrical appliances in general
    • 97.040: Kitchen equipment +
      • 97.040.50: Small kitchen appliances
    • 97.080: Cleaning appliances
    • 97.100: Domestic, commercial and industrial heating appliances
    • 97.120: Automatic controls for household use
    • 97.130: Shop fittings
    • 97.180: Miscellaneous domestic and commercial equipment
    • 97.200: Equipment for entertainment +
      • 97.200.99: Other equipment for entertainment
    • 97.220: Sports equipment and facilities