relative humidity

relative humidity

The water content of air compared to the water content that the air could hold if it were saturated, expressed as a percentage. Air in equilibrium with fresh water is saturated with water vapor, so its RH = 100%. Air above a saturated NaCl solution has RH = 75%. Air above a saturated CaCl₂ solution has RH = 31%. RH can, therefore, be used as an indicator of the water activity of a solution with which air is in equilibrium. RH can also reflect the aqueous-phase activity of an oil-emulsion mud, the basis for the Chenevert Method for testing oil muds.

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Industry/Domain: Oil & gas
Category: Drilling
Company: Schlumberger
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Celery (Apium graveolens var. dulce) is a plant variety in the family Apiaceae, commonly used as a vegetable. The plant grows to 1 m (3.3 ft) tall. ...