Dense phase measurement refers specifically to fluid measurement,of what is ostensibly a liquid regime,but due to the operating conditions encountered exhibits properties of both liquid and gas states.Most significant of these anomalies are increased compressibility and density values that are akin to a liquid while being neither a liquid or a gas;a single phase plasma absent void fraction.From a mass measurement view point,this can result in a loss of correlation to published density tables for NGLs and a reliance on empirically derived tables for Ethylene.
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