ISO 3104:2020 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
标准编号：ISO 3104:2020
中文名称：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
英文名称：Petroleum products — Transparent and opaque liquids — Determination of kinematic viscosity and calculation of dynamic viscosity
发布日期：2020-09
标准范围
本文件规定了使用手动玻璃粘度计的程序A和使用自动组件中的玻璃毛细管粘度计的程序B，通过测量一定体积的液体在重力下流过校准的玻璃毛细管粘度计的时间来测定透明和不透明液体石油产品的运动粘度ν。动态粘度η通过将测量的运动粘度乘以液体的密度ρ而获得。在温度范围内，本试验方法涵盖的运动粘度范围为0.2 mm2/s至300 000 mm2/s？20°C至+150°C。注意，从本文件获得的结果取决于样品的行为，旨在应用于剪切应力和剪切速率主要成比例的液体（牛顿流动行为）。然而，如果粘度随剪切速率显著变化，则可以从不同毛细管直径的粘度计获得不同的结果。在某些条件下表现出非牛顿行为的残余燃料油的程序和精度值已包括在内。
This document specifies Procedure A, using manual glass viscometers, and Procedure B, using glass capillary viscometers in an automated assembly, for the determination of the kinematic viscosity, ν, 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, η, is obtained by multiplying the measured kinematic viscosity by the density, ρ, of the liquid. The range of kinematic viscosities covered in this test method is from 0,2 mm2/s to 300 000 mm2/s over the temperature range?20 °C to +150 °C.NOTE The result obtained from this document is dependent upon the behaviour of the sample and is intended for application to liquids for which primarily the shear stress and shear rates are proportional (Newtonian flow behaviour). If, however, the viscosity varies significantly with the rate of shear, different results can be obtained from viscometers of different capillary diameters. The procedure and precision values for residual fuel oils, which under some conditions exhibit non-Newtonian behaviour, have been included.
标准预览图
