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  2. Welder certification - Wikipedia

    en.wikipedia.org/wiki/Welder_certification

    Most certifications expire after a certain time limit, and have different requirements for renewal or extension of the certification. In the USA, welder qualification is performed according to AWS D1.1, [1] ASME Section IX [2] and API 1104 [3] standards, which are also used in some other countries. Some States have their own Welder ...

  3. American Petroleum Institute - Wikipedia

    en.wikipedia.org/wiki/American_Petroleum_Institute

    API also defines and drafts standards for measurement for manufactured products. Crude Oil Data Exchange (CODE) is the electronic business standard as of 1978. API RP 500 and RP 505 classify the locations for electrical equipment in hazardous areas. [14] [15] API has entered petroleum industry nomenclature in a number of areas:

  4. LibreOffice Calc - Wikipedia

    en.wikipedia.org/wiki/LibreOffice_Calc

    LibreOffice Calc is the spreadsheet component of the LibreOffice software package. [5] [6]After forking from OpenOffice.org in 2010, LibreOffice Calc underwent a massive re-work of external reference handling to fix many defects in formula calculations involving external references, and to boost data caching performance, especially when referencing large data ranges.

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  6. Construction estimating software - Wikipedia

    en.wikipedia.org/wiki/Construction_estimating...

    Construction cost estimating software is computer software designed for contractors to estimate construction costs for a specific project. A cost estimator will typically use estimating software to estimate their bid price for a project, which will ultimately become part of a resulting construction contract.

  7. Chemical plant cost indexes - Wikipedia

    en.wikipedia.org/wiki/Chemical_plant_cost_indexes

    Chemical plant cost indexes are dimensionless numbers employed to updating capital cost required to erect a chemical plant from a past date to a later time, following changes in the value of money due to inflation and deflation. Since, at any given time, the number of chemical plants is insufficient to use in a preliminary or predesign estimate ...