Salt Water Test for Hygrometers

Discussion in 'Incubating & Hatching Eggs' started by Heritage Hens, Mar 8, 2012.

  1. Heritage Hens

    Heritage Hens Out Of The Brooder

    Dec 15, 2008
    Central Vermont area
    Has anyone had experience with doing the salt water test for hygrometers?
    I recently did the test on several of my hygrometers and now I am having trouble figuring out how to calculate the descrepancy between each one and the 75% RH factor.
  2. Highlander

    Highlander Tartan Terror

    Oct 1, 2008
    OK so as you know the hygro should read 75% after 24 hours in a sealed container with the salt mixture. Whatever yours is off by then you just adjust accordingly in the incubator, so say your hygro read 70% and you are shooting for 40% humdity in the bator then you adjust the humidity until your hygro reads 45 as it was 5% low. If it read 78 after 24 hours you would adjust until your hygro read 37 as it reads 3% high. Hope that helps.
  3. bargain

    bargain Love God, Hubby & farm Premium Member

    Apr 13, 2008
    Bowdon, GA

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