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What are the lower and upper fixed points of a laboratory thermometer in Celsius degrees?
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What are the lower and upper fixed points of a laboratory thermometer in Celsius degrees?

User Haroon Khan
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The lower fixed point, or ice point, is the temperature of pure melting ice at normal atmospheric pressure. The upper fixed point, or steam point, is the temperature of pure boiling water at normal atmospheric pressure.

User Vanegeek
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