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  2. Urine-indicator dye - Wikipedia

    en.wikipedia.org/wiki/Urine-indicator_dye

    Rumours of the origin of urine indicator-dye go back at least as far as 1958, [1] and the story is commonly told to children by parents who do not want them to urinate in the pool. [3] A 1985 biography of Orson Welles describes him using such a dye as part of a prank in 1937. [1] [6]

  3. Latham Launches AI-Powered Measuring Technology for Vinyl ...

    lite.aol.com/tech/story/0022/20241111/9270338.htm

    LATHAM, N.Y., Nov. 11, 2024 (GLOBE NEWSWIRE) -- Imagine never having to A-B a pool for a new liner or safety cover ever again. Latham Group, Inc. [NYSE:SWIM] the largest designer, manufacturer, and marketer of in-ground residential swimming pools in North America, Australia, and New Zealand, announces the deployment of a firmware update to Measure by Latham Pools.

  4. Dye penetrant inspection - Wikipedia

    en.wikipedia.org/wiki/Dye_penetrant_inspection

    The oil and whiting method used an oil solvent for cleaning followed by the application of a whiting or chalk coating, which absorbed oil from the cracks revealing their locations. Soon a dye was added to the liquid. By the 1940s, the fluorescent or visible dye was added to the oil used to penetrate test objects.

  5. Leak detection - Wikipedia

    en.wikipedia.org/wiki/Leak_detection

    The primary purpose of leak detection systems (LDS) is to help pipeline controllers to detect and localize leaks. LDS provide alarms and display other related data to the pipeline controllers to assist decision-making. Pipeline leak detection systems can also enhance productivity and system reliability thanks to reduced downtime and inspection ...

  6. Vinyl sulfone dyes - Wikipedia

    en.wikipedia.org/wiki/Vinyl_sulfone_dyes

    The vinyl sulfone parabase ester can be used as a diazo component in the preparation of azo dyes. [1] A further possibility is the condensation reaction of parabase ester with a chlorine or fluorotriazine residue, which in turn can be linked to any chromophore via a further amino group. Vinyl sulfone parabase ester

  7. Vinyl sulfone - Wikipedia

    en.wikipedia.org/wiki/Vinyl_sulfone

    Vinyl sulfones are dienophiles. Subsequent to the cycloaddition to a vinyl sulfone, the phenylsulfonyl group can be removed by reduction with zinc. [7] Vinyl sulfones are a Michael acceptors. [8] Vinyl sulfones add thiols, such as cysteine residues. [9] This same reactive nature is responsible for their major industrial use in vinyl sulfone ...

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