DS DS/EN ISO 3993
DS DSEN SO 3993 1996-MAR-01 Lquefed petroleum gas and lght hydrocarbons - Determnaton of densty or relatve densty - Pressure hydrometer method
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This standard specifies a method for the determination of density or relative density of liquefied petroleum gases and other light hydrocarbons. The prescribed apparatus shall not be used for materials having gauge vapour pressure higher than 1,4 MPa (14 bar) (absolute vapour pressure 1,5 MPa) at the test temperature.