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  2. Testing and inspection of diving cylinders - Wikipedia

    en.wikipedia.org/wiki/Testing_and_inspection_of...

    The visual inspection requirement is a diving industry standard based on observations made during a review by the National Underwater Accident Data Center. [7] In European Union countries a visual inspection is required every two and a half years, and a hydrostatic test every five years. [8] [9]

  3. Visual inspection - Wikipedia

    en.wikipedia.org/wiki/Visual_inspection

    Visual inspection is a common method of quality control, data acquisition, and data analysis.Visual Inspection, used in maintenance of facilities, mean inspection of equipment and structures using either or all of raw human senses such as vision, hearing, touch and smell and/or any non-specialized inspection equipment.

  4. Automated optical inspection - Wikipedia

    en.wikipedia.org/wiki/Automated_optical_inspection

    An Automated Optical Inspection device. Automated optical inspection (AOI) is an automated visual inspection of printed circuit board (PCB) (or LCD, transistor) manufacture where a camera autonomously scans the device under test for both catastrophic failure (e.g. missing component) and quality defects (e.g. fillet size or shape or component skew).

  5. Inspection - Wikipedia

    en.wikipedia.org/wiki/Inspection

    In Europe bodies involved in engineering inspection may be assessed by accreditation bodies according to ISO 17020 "General criteria for the operation of various types of bodies performing inspection". This standard defines inspection as "examination of a product, process, service, or installation or their design and determination of its ...

  6. Electrical safety testing - Wikipedia

    en.wikipedia.org/wiki/Electrical_safety_testing

    Visual inspection. A survey without touching anything, and looking at the electrical installation or product before starting any electrical testing. A visual inspection seeks to identify damaged insulation, disconnected wires, incorrect installation, and any other visual issues. Dead testing. Continuity test: a test to check the wiring is correct

  7. Testing, inspection and certification - Wikipedia

    en.wikipedia.org/wiki/Testing,_inspection_and...

    The history of testing, inspection and certification services spans back several centuries. In the late 19th century, following the advent of the Industrial Revolution and the considerable risks involved with high-pressure steam boilers, specialized institutions emerged across Europe which carried out periodical inspections of such vessels to assess their overall condition as a precautionary ...