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| FAQ Receiving your thermometer Upon receiving your thermometer please inspect your thermometer 
        for any visual damage. Sometimes in transit the mercury will become separated. 
        This can be easily fixed. Please consult Separation 
        Instructions. To check the accuracy of the thermometer place the thermometer 
        and about four inches of water in a pot and bring to a boil. When the 
        water begins to boil the thermometer should read 212° F. (This is 
        base on an altitude at sea level.) See Altitude 
        chart to adjust for different altitudes. If the thermometer does not 
        read 212° F please contact us before using. 
        This thermometer can be rechecked using this method at anytime.  Replacement of Tube and Scale |        
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| Did 
      you know? In making a liquid thermometer, the mercury is ordinarily driven to the top of the tube by heating. The glass is then sealed off, resulting in a vacuum when the mercury contracts during cooling. For high-temperature applications the tube is filled with a pressurized gas before sealing to prevent the mercury from boiling. Colored alcohol or other fluids are used for recording temperatures below the freezing point of mercury, which is -37.97°F (-38.87°C). | |||||
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