DIN EN ISO 3104-2017 石油产品. 透明和不透明液体. 运动粘度的测定和动态粘度的计算(ISO / DIS 3104:2017)；德文和英文版本prEN ISO 3104:2017
Petroleum products - Transparent and opaque liquids - Determination of kinematic viscosity and calculation of dynamic viscosity (ISO/DIS 3104:2017); German and English version prEN ISO 3104:2017
This International Standard specifies a Procedure A using manual glass viscometers and a Procedure B using glass capillary viscometers in an automated assembly, for the determination of the kinematic viscosity, v, of liquid petroleum products, both transparent and opaque, by measuring the time for a volume of liquid to flow under gravity through a calibrated glass capillary viscometer. The dynamic viscosity, ?, is obtained by multiplying the measured kinematic viscosity by the density, ?, of the liquid. The range of kinematic viscosities covered in this test method is from (0,2 to 300000) mm2/s over the temperature range (- 40 to +150)°C.