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

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