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  2. Piping and instrumentation diagram - Wikipedia

    en.wikipedia.org/wiki/Piping_and_instrumentation...

    Piping and instrumentation diagram of pump with storage tank. Symbols according to EN ISO 10628 and EN 62424. A more complex example of a P&ID. A piping and instrumentation diagram (P&ID) is defined as follows: A diagram which shows the interconnection of process equipment and the instrumentation used to control the process.

  3. ISO 10628 - Wikipedia

    en.wikipedia.org/wiki/ISO_10628

    ISO 10628 Diagrams for the chemical and petrochemical industry specifies the classification, content, and representation of flow diagrams. It does not apply to electrical engineering diagrams.

  4. Instrumentation in petrochemical industries - Wikipedia

    en.wikipedia.org/wiki/Instrumentation_in...

    Valves are actuated by an electric motor, hydraulic fluid or air. For air-operated control valves, electrical signals from the control system are converted to an air pressure for the valve actuator in a current/pneumatic I/P converter. Upon loss of pneumatic or hydraulic pressure valves may fail to an open (FO) or fail to a closed (FC) position.

  5. ISO 7010 - Wikipedia

    en.wikipedia.org/wiki/ISO_7010

    ISO 7010 states on all symbols with a first aid cross, that it "may be replaced with another element appropriate to cultural requirements". In countries with a Muslim -majority population, an appropriate symbol is the crescent .

  6. Process flow diagram - Wikipedia

    en.wikipedia.org/wiki/Process_flow_diagram

    A PFD can be computer generated from process simulators (see List of Chemical Process Simulators), CAD packages, or flow chart software using a library of chemical engineering symbols. Rules and symbols are available from standardization organizations such as DIN, ISO or ANSI. Often PFDs are produced on large sheets of paper.

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  8. List of IEC standards - Wikipedia

    en.wikipedia.org/wiki/List_of_IEC_standards

    IEC 60609 Hydraulic turbines, storage pumps and pump-turbines – Cavitation pitting evaluation; IEC 60613 Electrical and loading characteristics of X-ray tube assemblies for medical diagnosis; IEC 60615 Terminology for microwave apparatus; IEC TR 60616 Terminal and tapping markings for power transformers; IEC 60617 Graphical symbols for diagrams

  9. Is gnocchi healthier than pasta? It depends on 2 things ... - AOL

    www.aol.com/gnocchi-healthier-pasta-depends-2...

    Delightfully chewy gnocchi, often made with potatoes, is considered both a type of pasta and a type of dumpling — depending on who you ask. Can it also be a healthier, more nutritious ...