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1、I.Standard for test methods Determination of the kinematic viscosity of liquid petroleum products:GB/T 265-1988Petroleum Products-Determination of Kinematic ViscosityII.Scope of applicationThis standard applies to the determination of the kinematic viscosity of liquid petroleum products.III.Test Pri
2、nciples and InstrumentsTest principle:At a constant temperature,determine the volume of a liquid under gravity,time of flow through a calibrated glass capillary viscometer,product of capillary constant and flow time of viscometer,the determination of the kinematic viscosity of a liquid at this tempe
3、rature.The kinematic viscosity t temperature t is represented by the symbol vtMain Instruments:Glass capillary viscometer,kinematic viscosity tester,thermometerDZY-005A kinematic viscosity testerFigure 3-3 Schematic diagram of glass capillary viscometer2,3,5-expansion part;1,6-tube body7-Branch 4-Ca
4、pillary tube.a,b-marking lineTable 3-10 Glass capillary viscometer specificationsModelInner diameter of capillary tube/mmBMN1BMN2BMN3BMN40.4，0.6，0.8，1.0，1.2，1.5，2.0，2.5，3.0，3.5，4.05.0，6.00.31,0.42，0.54，0.63，0.78，1.02，1.26，1.48，1.88，2.20，3.10,4.001.0，1.2，1.5，2.0，2.5，3.012345678baNote that the inhaled
5、 liquid does not produce bubbles or cracks4.Test proceduresV.RemarksCareful and rigorous,persistent and standardizedVI.Original Records and Data Processingheader part Experimental dataData processing sectionBefore the test begins,we should first fill out the header part of the record sheet,and the test data part should be filled in in time with the test progress,and it is not allowed to fill in after the test ends.lAcquisition：Thanks