EPA Method 27
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EPA Method 27:
DETERMINATION OF VAPOR TIGHTNESS OF GASOLINE DELIVERY TANK USING PRESSURE VACUUM TEST
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.
This method is applicable for the determination of vapor tightness of a gasoline delivery tank which is equipped with vapor collection equipment.
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