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View Actual EPA Method 27 (PDF File)
EPA Method 27:DETERMINATION OF VAPOR TIGHTNESS OF GASOLINE DELIVERY TANK USING PRESSURE VACUUM TEST
Summary:Pressure and vacuum are applied alternately to the compartments of a gasoline delivery tank and the change in pressure or vacuum is recorded after a specified period of time.
Scope:This method is applicable for the determination of vapor tightness of a gasoline delivery tank which is equipped with vapor collection equipment.
Date Issued:9/25/1996