• AnUnusualRelic@lemmy.world
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    1 year ago

    It was defined such that 252.458 units would balance 1 cubic inch (16 cm3) of distilled water at an ambient air-water pressure and temperature of 30 inches of mercury (100 kPa) and 62 °F (17 °C) respectively.

    Nice and convenient.

    • dream_weasel
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      1 year ago

      That’s the way I would have done it. Pretty intuitive.